GET https://dev.normadoc.fr/products/ansi-ieee-450-1980-ieee00006448-243340

Components

4 Twig Components
24 Render Count
19 ms Render Time
454.0 MiB Memory Usage

Components

Name Metadata Render Count Render Time
ProductState
"App\Twig\Components\ProductState"
components/ProductState.html.twig
11 2.58ms
ProductMostRecent
"App\Twig\Components\ProductMostRecent"
components/ProductMostRecent.html.twig
11 8.60ms
ProductType
"App\Twig\Components\ProductType"
components/ProductType.html.twig
1 0.23ms
ProductCard
"App\Twig\Components\ProductCard"
components/ProductCard.html.twig
1 8.24ms

Render calls

ProductState App\Twig\Components\ProductState 452.0 MiB 0.30 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#92876
  +product: App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductType App\Twig\Components\ProductType 452.0 MiB 0.23 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductType {#93056
  +product: App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +label: "Standard"
  -typeAttributeCode: "type"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.70 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#93131
  +product: App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.28 ms
Input props
[
  "product" => App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#106722
  +product: App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 1.00 ms
Input props
[
  "product" => App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#106821
  +product: App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.26 ms
Input props
[
  "product" => App\Entity\Product\Product {#93568
    #id: 11914
    #code: "IEEE00006772"
    #attributes: Doctrine\ORM\PersistentCollection {#93550 …}
    #variants: Doctrine\ORM\PersistentCollection {#93547 …}
    #options: Doctrine\ORM\PersistentCollection {#93543 …}
    #associations: Doctrine\ORM\PersistentCollection {#93545 …}
    #createdAt: DateTime @1751040074 {#93576
      date: 2025-06-27 18:01:14.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608621 {#93555
      date: 2025-08-08 01:17:01.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93561 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93596
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93568}
        #id: 42665
        #name: "IEEE 450:2020"
        #slug: "ieee-450-2020-ieee00006772-243566"
        #description: """
          Revision Standard - Active.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. Guidance to determine when batteries should be replaced is also provided. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93559 …}
    #channels: Doctrine\ORM\PersistentCollection {#93552 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93557 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93554 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93569 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1623621600 {#93575
      date: 2021-06-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1614898800 {#93574
      date: 2021-03-05 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#93565 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93563 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#113596
  +product: App\Entity\Product\Product {#93568
    #id: 11914
    #code: "IEEE00006772"
    #attributes: Doctrine\ORM\PersistentCollection {#93550 …}
    #variants: Doctrine\ORM\PersistentCollection {#93547 …}
    #options: Doctrine\ORM\PersistentCollection {#93543 …}
    #associations: Doctrine\ORM\PersistentCollection {#93545 …}
    #createdAt: DateTime @1751040074 {#93576
      date: 2025-06-27 18:01:14.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608621 {#93555
      date: 2025-08-08 01:17:01.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93561 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93596
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93568}
        #id: 42665
        #name: "IEEE 450:2020"
        #slug: "ieee-450-2020-ieee00006772-243566"
        #description: """
          Revision Standard - Active.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. Guidance to determine when batteries should be replaced is also provided. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93559 …}
    #channels: Doctrine\ORM\PersistentCollection {#93552 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93557 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93554 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93569 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1623621600 {#93575
      date: 2021-06-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1614898800 {#93574
      date: 2021-03-05 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#93565 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93563 …}
  }
  +appearance: "state-active"
  +labels: [
    "Active"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 1.00 ms
Input props
[
  "product" => App\Entity\Product\Product {#93568
    #id: 11914
    #code: "IEEE00006772"
    #attributes: Doctrine\ORM\PersistentCollection {#93550 …}
    #variants: Doctrine\ORM\PersistentCollection {#93547 …}
    #options: Doctrine\ORM\PersistentCollection {#93543 …}
    #associations: Doctrine\ORM\PersistentCollection {#93545 …}
    #createdAt: DateTime @1751040074 {#93576
      date: 2025-06-27 18:01:14.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608621 {#93555
      date: 2025-08-08 01:17:01.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93561 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93596
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93568}
        #id: 42665
        #name: "IEEE 450:2020"
        #slug: "ieee-450-2020-ieee00006772-243566"
        #description: """
          Revision Standard - Active.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. Guidance to determine when batteries should be replaced is also provided. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93559 …}
    #channels: Doctrine\ORM\PersistentCollection {#93552 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93557 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93554 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93569 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1623621600 {#93575
      date: 2021-06-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1614898800 {#93574
      date: 2021-03-05 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#93565 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93563 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#113663
  +product: App\Entity\Product\Product {#93568
    #id: 11914
    #code: "IEEE00006772"
    #attributes: Doctrine\ORM\PersistentCollection {#93550 …}
    #variants: Doctrine\ORM\PersistentCollection {#93547 …}
    #options: Doctrine\ORM\PersistentCollection {#93543 …}
    #associations: Doctrine\ORM\PersistentCollection {#93545 …}
    #createdAt: DateTime @1751040074 {#93576
      date: 2025-06-27 18:01:14.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608621 {#93555
      date: 2025-08-08 01:17:01.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93561 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93596
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93568}
        #id: 42665
        #name: "IEEE 450:2020"
        #slug: "ieee-450-2020-ieee00006772-243566"
        #description: """
          Revision Standard - Active.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. Guidance to determine when batteries should be replaced is also provided. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93559 …}
    #channels: Doctrine\ORM\PersistentCollection {#93552 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93557 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93554 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93569 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1623621600 {#93575
      date: 2021-06-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1614898800 {#93574
      date: 2021-03-05 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#93565 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93563 …}
  }
  +label: "Most Recent"
  +icon: "check-xs"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.24 ms
Input props
[
  "product" => App\Entity\Product\Product {#113399
    #id: 10669
    #code: "IEEE00004792"
    #attributes: Doctrine\ORM\PersistentCollection {#113417 …}
    #variants: Doctrine\ORM\PersistentCollection {#113419 …}
    #options: Doctrine\ORM\PersistentCollection {#113423 …}
    #associations: Doctrine\ORM\PersistentCollection {#113421 …}
    #createdAt: DateTime @1751039208 {#113391
      date: 2025-06-27 17:46:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#113389
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113407 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113734
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113399}
        #id: 37685
        #name: "IEEE 450:2010"
        #slug: "ieee-450-2010-ieee00004792-242321"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113409 …}
    #channels: Doctrine\ORM\PersistentCollection {#113415 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113411 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113413 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113401 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113392
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1615330800 {#113385
      date: 2021-03-10 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1298588400 {#113382
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1298588400 {#113400
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#113403 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113405 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#113749
  +product: App\Entity\Product\Product {#113399
    #id: 10669
    #code: "IEEE00004792"
    #attributes: Doctrine\ORM\PersistentCollection {#113417 …}
    #variants: Doctrine\ORM\PersistentCollection {#113419 …}
    #options: Doctrine\ORM\PersistentCollection {#113423 …}
    #associations: Doctrine\ORM\PersistentCollection {#113421 …}
    #createdAt: DateTime @1751039208 {#113391
      date: 2025-06-27 17:46:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#113389
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113407 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113734
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113399}
        #id: 37685
        #name: "IEEE 450:2010"
        #slug: "ieee-450-2010-ieee00004792-242321"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113409 …}
    #channels: Doctrine\ORM\PersistentCollection {#113415 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113411 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113413 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113401 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113392
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1615330800 {#113385
      date: 2021-03-10 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1298588400 {#113382
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1298588400 {#113400
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#113403 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113405 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.97 ms
Input props
[
  "product" => App\Entity\Product\Product {#113399
    #id: 10669
    #code: "IEEE00004792"
    #attributes: Doctrine\ORM\PersistentCollection {#113417 …}
    #variants: Doctrine\ORM\PersistentCollection {#113419 …}
    #options: Doctrine\ORM\PersistentCollection {#113423 …}
    #associations: Doctrine\ORM\PersistentCollection {#113421 …}
    #createdAt: DateTime @1751039208 {#113391
      date: 2025-06-27 17:46:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#113389
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113407 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113734
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113399}
        #id: 37685
        #name: "IEEE 450:2010"
        #slug: "ieee-450-2010-ieee00004792-242321"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113409 …}
    #channels: Doctrine\ORM\PersistentCollection {#113415 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113411 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113413 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113401 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113392
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1615330800 {#113385
      date: 2021-03-10 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1298588400 {#113382
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1298588400 {#113400
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#113403 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113405 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#113801
  +product: App\Entity\Product\Product {#113399
    #id: 10669
    #code: "IEEE00004792"
    #attributes: Doctrine\ORM\PersistentCollection {#113417 …}
    #variants: Doctrine\ORM\PersistentCollection {#113419 …}
    #options: Doctrine\ORM\PersistentCollection {#113423 …}
    #associations: Doctrine\ORM\PersistentCollection {#113421 …}
    #createdAt: DateTime @1751039208 {#113391
      date: 2025-06-27 17:46:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#113389
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113407 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113734
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113399}
        #id: 37685
        #name: "IEEE 450:2010"
        #slug: "ieee-450-2010-ieee00004792-242321"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby service are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          This document provides recommended maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently-installed, vented lead-acid storage batteries used in standby service. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to standby service stationary applications where a battery charger normally maintains the battery fully charged and provides the dc loads.<br />\n
          The maintenance and testing programs described in this recommended practice represent &quot;the best program&quot; based on the information available at the time this document was developed. The user should evaluate these practices against their operating experience, operating conditions, manufacturer's recommendations, resources, and needs in developing a maintenance program for a given application. These maintenance and testing recommendations were developed without consideration of economics, availability of testing equipment and personnel, or relative importance of the application. Development of a maintenance and testing program for a specific application requires consideration of all issues, not just the technical issues considered in this document.<br />\n
          The purpose of this recommended practice is to provide the user with information and recommendations concerning the maintenance, testing, and replacement of vented lead-acid batteries used in stationary applications.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113409 …}
    #channels: Doctrine\ORM\PersistentCollection {#113415 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113411 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113413 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113401 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113392
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1615330800 {#113385
      date: 2021-03-10 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1298588400 {#113382
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1298588400 {#113400
      date: 2011-02-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 71
    -documents: Doctrine\ORM\PersistentCollection {#113403 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113405 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.23 ms
Input props
[
  "product" => App\Entity\Product\Product {#113430
    #id: 8568
    #code: "IEEE00000678"
    #attributes: Doctrine\ORM\PersistentCollection {#113447 …}
    #variants: Doctrine\ORM\PersistentCollection {#113449 …}
    #options: Doctrine\ORM\PersistentCollection {#113453 …}
    #associations: Doctrine\ORM\PersistentCollection {#113451 …}
    #createdAt: DateTime @1751037526 {#113425
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113426
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113437 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113867
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113430}
        #id: 29281
        #name: "IEEE 450:2002"
        #slug: "ieee-450-2002-ieee00000678-240220"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to full-float stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          General revision of contents of the standard with no change in the existing scope of the standard.<br />\n
          General revision to standard to incorporate lessons learned from the industry, incorporate recent developments from the industry, and explanation of new testing recommendations from the 1995 version of the standard.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113439 …}
    #channels: Doctrine\ORM\PersistentCollection {#113445 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113441 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113443 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113431 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113427
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113428
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1049320800 {#113429
      date: 2003-04-03 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113433 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113435 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#113882
  +product: App\Entity\Product\Product {#113430
    #id: 8568
    #code: "IEEE00000678"
    #attributes: Doctrine\ORM\PersistentCollection {#113447 …}
    #variants: Doctrine\ORM\PersistentCollection {#113449 …}
    #options: Doctrine\ORM\PersistentCollection {#113453 …}
    #associations: Doctrine\ORM\PersistentCollection {#113451 …}
    #createdAt: DateTime @1751037526 {#113425
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113426
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113437 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113867
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113430}
        #id: 29281
        #name: "IEEE 450:2002"
        #slug: "ieee-450-2002-ieee00000678-240220"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to full-float stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          General revision of contents of the standard with no change in the existing scope of the standard.<br />\n
          General revision to standard to incorporate lessons learned from the industry, incorporate recent developments from the industry, and explanation of new testing recommendations from the 1995 version of the standard.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113439 …}
    #channels: Doctrine\ORM\PersistentCollection {#113445 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113441 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113443 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113431 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113427
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113428
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1049320800 {#113429
      date: 2003-04-03 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113433 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113435 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.84 ms
Input props
[
  "product" => App\Entity\Product\Product {#113430
    #id: 8568
    #code: "IEEE00000678"
    #attributes: Doctrine\ORM\PersistentCollection {#113447 …}
    #variants: Doctrine\ORM\PersistentCollection {#113449 …}
    #options: Doctrine\ORM\PersistentCollection {#113453 …}
    #associations: Doctrine\ORM\PersistentCollection {#113451 …}
    #createdAt: DateTime @1751037526 {#113425
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113426
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113437 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113867
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113430}
        #id: 29281
        #name: "IEEE 450:2002"
        #slug: "ieee-450-2002-ieee00000678-240220"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to full-float stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          General revision of contents of the standard with no change in the existing scope of the standard.<br />\n
          General revision to standard to incorporate lessons learned from the industry, incorporate recent developments from the industry, and explanation of new testing recommendations from the 1995 version of the standard.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113439 …}
    #channels: Doctrine\ORM\PersistentCollection {#113445 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113441 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113443 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113431 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113427
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113428
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1049320800 {#113429
      date: 2003-04-03 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113433 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113435 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#113934
  +product: App\Entity\Product\Product {#113430
    #id: 8568
    #code: "IEEE00000678"
    #attributes: Doctrine\ORM\PersistentCollection {#113447 …}
    #variants: Doctrine\ORM\PersistentCollection {#113449 …}
    #options: Doctrine\ORM\PersistentCollection {#113453 …}
    #associations: Doctrine\ORM\PersistentCollection {#113451 …}
    #createdAt: DateTime @1751037526 {#113425
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113426
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113437 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113867
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113430}
        #id: 29281
        #name: "IEEE 450:2002"
        #slug: "ieee-450-2002-ieee00000678-240220"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to full-float stationary applications where a charger maintains the battery fully charged and supplies the dc loads.<br />\n
          \t\t\t\t<br />\n
          General revision of contents of the standard with no change in the existing scope of the standard.<br />\n
          General revision to standard to incorporate lessons learned from the industry, incorporate recent developments from the industry, and explanation of new testing recommendations from the 1995 version of the standard.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113439 …}
    #channels: Doctrine\ORM\PersistentCollection {#113445 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113441 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113443 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113431 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113427
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113428
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1049320800 {#113429
      date: 2003-04-03 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113433 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113435 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.19 ms
Input props
[
  "product" => App\Entity\Product\Product {#113460
    #id: 8567
    #code: "IEEE00000677"
    #attributes: Doctrine\ORM\PersistentCollection {#113477 …}
    #variants: Doctrine\ORM\PersistentCollection {#113479 …}
    #options: Doctrine\ORM\PersistentCollection {#113483 …}
    #associations: Doctrine\ORM\PersistentCollection {#113481 …}
    #createdAt: DateTime @1751037526 {#113455
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113456
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113467 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114000
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113460}
        #id: 29277
        #name: "IEEE 450:1995"
        #slug: "ieee-450-1995-ieee00000677-240219"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system, or surveillance and testing of the dc system, even though the battery is part of that system. Preoperational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113469 …}
    #channels: Doctrine\ORM\PersistentCollection {#113475 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113471 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113473 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113461 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113457
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1698706800 {#113458
      date: 2023-10-31 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @801871200 {#113459
      date: 1995-05-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 32
    -documents: Doctrine\ORM\PersistentCollection {#113463 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113465 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#114015
  +product: App\Entity\Product\Product {#113460
    #id: 8567
    #code: "IEEE00000677"
    #attributes: Doctrine\ORM\PersistentCollection {#113477 …}
    #variants: Doctrine\ORM\PersistentCollection {#113479 …}
    #options: Doctrine\ORM\PersistentCollection {#113483 …}
    #associations: Doctrine\ORM\PersistentCollection {#113481 …}
    #createdAt: DateTime @1751037526 {#113455
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113456
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113467 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114000
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113460}
        #id: 29277
        #name: "IEEE 450:1995"
        #slug: "ieee-450-1995-ieee00000677-240219"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system, or surveillance and testing of the dc system, even though the battery is part of that system. Preoperational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113469 …}
    #channels: Doctrine\ORM\PersistentCollection {#113475 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113471 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113473 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113461 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113457
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1698706800 {#113458
      date: 2023-10-31 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @801871200 {#113459
      date: 1995-05-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 32
    -documents: Doctrine\ORM\PersistentCollection {#113463 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113465 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.65 ms
Input props
[
  "product" => App\Entity\Product\Product {#113460
    #id: 8567
    #code: "IEEE00000677"
    #attributes: Doctrine\ORM\PersistentCollection {#113477 …}
    #variants: Doctrine\ORM\PersistentCollection {#113479 …}
    #options: Doctrine\ORM\PersistentCollection {#113483 …}
    #associations: Doctrine\ORM\PersistentCollection {#113481 …}
    #createdAt: DateTime @1751037526 {#113455
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113456
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113467 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114000
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113460}
        #id: 29277
        #name: "IEEE 450:1995"
        #slug: "ieee-450-1995-ieee00000677-240219"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system, or surveillance and testing of the dc system, even though the battery is part of that system. Preoperational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113469 …}
    #channels: Doctrine\ORM\PersistentCollection {#113475 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113471 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113473 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113461 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113457
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1698706800 {#113458
      date: 2023-10-31 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @801871200 {#113459
      date: 1995-05-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 32
    -documents: Doctrine\ORM\PersistentCollection {#113463 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113465 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#114067
  +product: App\Entity\Product\Product {#113460
    #id: 8567
    #code: "IEEE00000677"
    #attributes: Doctrine\ORM\PersistentCollection {#113477 …}
    #variants: Doctrine\ORM\PersistentCollection {#113479 …}
    #options: Doctrine\ORM\PersistentCollection {#113483 …}
    #associations: Doctrine\ORM\PersistentCollection {#113481 …}
    #createdAt: DateTime @1751037526 {#113455
      date: 2025-06-27 17:18:46.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113456
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113467 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114000
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113460}
        #id: 29277
        #name: "IEEE 450:1995"
        #slug: "ieee-450-1995-ieee00000677-240219"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications. It also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system, or surveillance and testing of the dc system, even though the battery is part of that system. Preoperational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113469 …}
    #channels: Doctrine\ORM\PersistentCollection {#113475 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113471 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113473 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113461 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113457
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1698706800 {#113458
      date: 2023-10-31 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @801871200 {#113459
      date: 1995-05-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 32
    -documents: Doctrine\ORM\PersistentCollection {#113463 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113465 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.31 ms
Input props
[
  "product" => App\Entity\Product\Product {#113490
    #id: 8566
    #code: "IEEE00000676"
    #attributes: Doctrine\ORM\PersistentCollection {#113507 …}
    #variants: Doctrine\ORM\PersistentCollection {#113509 …}
    #options: Doctrine\ORM\PersistentCollection {#113513 …}
    #associations: Doctrine\ORM\PersistentCollection {#113511 …}
    #createdAt: DateTime @1751037525 {#113485
      date: 2025-06-27 17:18:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113486
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113497 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114133
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113490}
        #id: 29273
        #name: "IEEE/ANSI 450:1987"
        #slug: "ieee-ansi-450-1987-ieee00000676-240218"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing<br />\n
          recommended practices of maintenance,<br />\n
          test schedules, and testing procedures that can<br />\n
          be used to optimize the life and performance of<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should be<br />\n
          replaced. There are other test procedures and<br />\n
          replacement techniques used within the industry<br />\n
          (especially for smaller substation batteries)<br />\n
          which are equally as effective but are beyond<br />\n
          the scope of this recommended practice.<br />\n
          Sizing, installation, qualification, other battery<br />\n
          types, and application are also beyond the<br />\n
          scope of this recommended practice.<br />\n
          This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance,Testing, and Replacement of Large Lead Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113499 …}
    #channels: Doctrine\ORM\PersistentCollection {#113505 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113501 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113503 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113491 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113487
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113488
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @542242800 {#113489
      date: 1987-03-09 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 15
    -documents: Doctrine\ORM\PersistentCollection {#113493 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113495 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#114148
  +product: App\Entity\Product\Product {#113490
    #id: 8566
    #code: "IEEE00000676"
    #attributes: Doctrine\ORM\PersistentCollection {#113507 …}
    #variants: Doctrine\ORM\PersistentCollection {#113509 …}
    #options: Doctrine\ORM\PersistentCollection {#113513 …}
    #associations: Doctrine\ORM\PersistentCollection {#113511 …}
    #createdAt: DateTime @1751037525 {#113485
      date: 2025-06-27 17:18:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113486
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113497 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114133
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113490}
        #id: 29273
        #name: "IEEE/ANSI 450:1987"
        #slug: "ieee-ansi-450-1987-ieee00000676-240218"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing<br />\n
          recommended practices of maintenance,<br />\n
          test schedules, and testing procedures that can<br />\n
          be used to optimize the life and performance of<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should be<br />\n
          replaced. There are other test procedures and<br />\n
          replacement techniques used within the industry<br />\n
          (especially for smaller substation batteries)<br />\n
          which are equally as effective but are beyond<br />\n
          the scope of this recommended practice.<br />\n
          Sizing, installation, qualification, other battery<br />\n
          types, and application are also beyond the<br />\n
          scope of this recommended practice.<br />\n
          This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance,Testing, and Replacement of Large Lead Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113499 …}
    #channels: Doctrine\ORM\PersistentCollection {#113505 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113501 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113503 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113491 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113487
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113488
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @542242800 {#113489
      date: 1987-03-09 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 15
    -documents: Doctrine\ORM\PersistentCollection {#113493 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113495 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.81 ms
Input props
[
  "product" => App\Entity\Product\Product {#113490
    #id: 8566
    #code: "IEEE00000676"
    #attributes: Doctrine\ORM\PersistentCollection {#113507 …}
    #variants: Doctrine\ORM\PersistentCollection {#113509 …}
    #options: Doctrine\ORM\PersistentCollection {#113513 …}
    #associations: Doctrine\ORM\PersistentCollection {#113511 …}
    #createdAt: DateTime @1751037525 {#113485
      date: 2025-06-27 17:18:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113486
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113497 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114133
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113490}
        #id: 29273
        #name: "IEEE/ANSI 450:1987"
        #slug: "ieee-ansi-450-1987-ieee00000676-240218"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing<br />\n
          recommended practices of maintenance,<br />\n
          test schedules, and testing procedures that can<br />\n
          be used to optimize the life and performance of<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should be<br />\n
          replaced. There are other test procedures and<br />\n
          replacement techniques used within the industry<br />\n
          (especially for smaller substation batteries)<br />\n
          which are equally as effective but are beyond<br />\n
          the scope of this recommended practice.<br />\n
          Sizing, installation, qualification, other battery<br />\n
          types, and application are also beyond the<br />\n
          scope of this recommended practice.<br />\n
          This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance,Testing, and Replacement of Large Lead Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113499 …}
    #channels: Doctrine\ORM\PersistentCollection {#113505 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113501 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113503 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113491 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113487
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113488
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @542242800 {#113489
      date: 1987-03-09 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 15
    -documents: Doctrine\ORM\PersistentCollection {#113493 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113495 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#114200
  +product: App\Entity\Product\Product {#113490
    #id: 8566
    #code: "IEEE00000676"
    #attributes: Doctrine\ORM\PersistentCollection {#113507 …}
    #variants: Doctrine\ORM\PersistentCollection {#113509 …}
    #options: Doctrine\ORM\PersistentCollection {#113513 …}
    #associations: Doctrine\ORM\PersistentCollection {#113511 …}
    #createdAt: DateTime @1751037525 {#113485
      date: 2025-06-27 17:18:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#113486
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113497 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114133
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113490}
        #id: 29273
        #name: "IEEE/ANSI 450:1987"
        #slug: "ieee-ansi-450-1987-ieee00000676-240218"
        #description: """
          Revision Standard - Superseded.<br />\n
          Maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of permanently installed, vented lead-acid storage batteries used for standby power applications are provided. This recommended practice also provides guidance to determine when batteries should be replaced. This recommended practice is applicable to all stationary applications. However, specific applications, such as emergency lighting units and semiportable equipment, may have other appropriate practices and are beyond the scope of this recommended practice.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing<br />\n
          recommended practices of maintenance,<br />\n
          test schedules, and testing procedures that can<br />\n
          be used to optimize the life and performance of<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should be<br />\n
          replaced. There are other test procedures and<br />\n
          replacement techniques used within the industry<br />\n
          (especially for smaller substation batteries)<br />\n
          which are equally as effective but are beyond<br />\n
          the scope of this recommended practice.<br />\n
          Sizing, installation, qualification, other battery<br />\n
          types, and application are also beyond the<br />\n
          scope of this recommended practice.<br />\n
          This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this recommended practice.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance,Testing, and Replacement of Large Lead Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113499 …}
    #channels: Doctrine\ORM\PersistentCollection {#113505 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113501 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113503 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113491 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113487
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113488
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @542242800 {#113489
      date: 1987-03-09 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 15
    -documents: Doctrine\ORM\PersistentCollection {#113493 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113495 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.18 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#114264
  +product: App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.64 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#114291
  +product: App\Entity\Product\Product {#7310
    #id: 11688
    #code: "IEEE00006448"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751039898 {#7274
      date: 2025-06-27 17:58:18.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#7322
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 41761
        #name: "ANSI/IEEE 450:1980"
        #slug: "ansi-ieee-450-1980-ieee00006448-243340"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfillls the need within the industry to provide common or standard practices of maintenance, testing, and replacement. The methods described are applicable to all installations and battery sizes. The installations considered herein are designed for full-float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load.<br />\n
          \t\t\t\t<br />\n
          This recommended practice is limited to providing recommended practices of maintenance, test schedules, and testing procedures that can be used to optimize the life and performance of large lead storage batteries. It also provides guidance to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) which are equally as effective but are beyond the scope of this recommended practice. Sizing, installation, qualification, other battery types, and application are also beyond the scope of this recommended practice. This recommended practice does not include any other component of the dc system nor surveillance and testing of the dc system, even though the battery is part of that system. Pre-operational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are not within the scope of this recommended practice
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing , and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#7292
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @341190000 {#7318
      date: 1980-10-24 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 14
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.18 ms
Input props
[
  "product" => App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#114355
  +product: App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.62 ms
Input props
[
  "product" => App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#114382
  +product: App\Entity\Product\Product {#106706
    #id: 11291
    #code: "IEEE00005859"
    #attributes: Doctrine\ORM\PersistentCollection {#106689 …}
    #variants: Doctrine\ORM\PersistentCollection {#106686 …}
    #options: Doctrine\ORM\PersistentCollection {#106682 …}
    #associations: Doctrine\ORM\PersistentCollection {#106684 …}
    #createdAt: DateTime @1751039611 {#106714
      date: 2025-06-27 17:53:31.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754608190 {#106687
      date: 2025-08-08 01:09:50.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106700 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106739
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106706}
        #id: 40173
        #name: "IEEE 450:1975"
        #slug: "ieee-450-1975-ieee00005859-242943"
        #description: """
          Revision Standard - Superseded.<br />\n
          Large stationary lead storage batteries play an ever increasing role in substation and generating<br />\n
          station control systems and in providing the backup energy for emergencies. A definite need exists<br />\n
          within the industry for an application guide and testing procedure to provide a common or standard<br />\n
          method for selecting, applying, and installing batteries to meet station requirements. However,<br />\n
          to provide a guide that can be used for determining the available capacity of the battery (especially for nuclear stations), this document will limit its scope to recommended practice for lead storage battery maintenance, testing. and replacement.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended<br />\n
          practices of maintenance. test<br />\n
          schedules, and testing procedures that can be<br />\n
          used to optimize life and performance from<br />\n
          large lead storage batteries. It also provides<br />\n
          guidance to determine when batteries should<br />\n
          be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation batteries) that are equally as effective but are beyond the scope of this document. Sizing. installation,otherre battery types, and application are also beyond the scope. This document does not include surveillance and testing of the dc system even though the battery is part of that system.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106697 …}
    #channels: Doctrine\ORM\PersistentCollection {#106691 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106695 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106693 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106707 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106674
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106713
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @154998000 {#106712
      date: 1974-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 13
    -documents: Doctrine\ORM\PersistentCollection {#106704 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106702 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 452.0 MiB 0.18 ms
Input props
[
  "product" => App\Entity\Product\Product {#113520
    #id: 11286
    #code: "IEEE00005853"
    #attributes: Doctrine\ORM\PersistentCollection {#113537 …}
    #variants: Doctrine\ORM\PersistentCollection {#113539 …}
    #options: Doctrine\ORM\PersistentCollection {#113543 …}
    #associations: Doctrine\ORM\PersistentCollection {#113541 …}
    #createdAt: DateTime @1751039608 {#113515
      date: 2025-06-27 17:53:28.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753970307 {#113516
      date: 2025-07-31 15:58:27.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113527 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114448
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113520}
        #id: 40153
        #name: "IEEE 450:1972"
        #slug: "ieee-450-1972-ieee00005853-242938"
        #description: """
          Revision Standard - Superseded.<br />\n
          Proper maintenance will prolong the life of a battery and will aid in assuring that it is capable of supplying its design power requirements. A good battery maintenance program will serve as a valuable aid in determining the need for battery replacement. Station battery maintenance should be performed by personnel knowledgeable of batteries and the safety precautions involved.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended practices of maintenance. test schedules. and testing procedures that can be used to optimize life and performance from large lead storage batteries. It also provides indications to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation<br />\n
          batteries) that are equally as effective<br />\n
          but arc beyond the scope of this document.<br />\n
          Sizing. installation, other battery types. and<br />\n
          application are also beyond the scope
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Stationary Type Power Plant and Substation Lead Storage Batteries"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113529 …}
    #channels: Doctrine\ORM\PersistentCollection {#113535 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113531 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113533 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113521 …}
    -apiLastModifiedAt: DateTime @1743289200 {#113517
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113518
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @79311600 {#113519
      date: 1972-07-07 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 7
    -documents: Doctrine\ORM\PersistentCollection {#113523 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113525 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#114463
  +product: App\Entity\Product\Product {#113520
    #id: 11286
    #code: "IEEE00005853"
    #attributes: Doctrine\ORM\PersistentCollection {#113537 …}
    #variants: Doctrine\ORM\PersistentCollection {#113539 …}
    #options: Doctrine\ORM\PersistentCollection {#113543 …}
    #associations: Doctrine\ORM\PersistentCollection {#113541 …}
    #createdAt: DateTime @1751039608 {#113515
      date: 2025-06-27 17:53:28.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753970307 {#113516
      date: 2025-07-31 15:58:27.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113527 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114448
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113520}
        #id: 40153
        #name: "IEEE 450:1972"
        #slug: "ieee-450-1972-ieee00005853-242938"
        #description: """
          Revision Standard - Superseded.<br />\n
          Proper maintenance will prolong the life of a battery and will aid in assuring that it is capable of supplying its design power requirements. A good battery maintenance program will serve as a valuable aid in determining the need for battery replacement. Station battery maintenance should be performed by personnel knowledgeable of batteries and the safety precautions involved.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended practices of maintenance. test schedules. and testing procedures that can be used to optimize life and performance from large lead storage batteries. It also provides indications to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation<br />\n
          batteries) that are equally as effective<br />\n
          but arc beyond the scope of this document.<br />\n
          Sizing. installation, other battery types. and<br />\n
          application are also beyond the scope
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Stationary Type Power Plant and Substation Lead Storage Batteries"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113529 …}
    #channels: Doctrine\ORM\PersistentCollection {#113535 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113531 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113533 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113521 …}
    -apiLastModifiedAt: DateTime @1743289200 {#113517
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113518
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @79311600 {#113519
      date: 1972-07-07 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 7
    -documents: Doctrine\ORM\PersistentCollection {#113523 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113525 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 452.0 MiB 0.66 ms
Input props
[
  "product" => App\Entity\Product\Product {#113520
    #id: 11286
    #code: "IEEE00005853"
    #attributes: Doctrine\ORM\PersistentCollection {#113537 …}
    #variants: Doctrine\ORM\PersistentCollection {#113539 …}
    #options: Doctrine\ORM\PersistentCollection {#113543 …}
    #associations: Doctrine\ORM\PersistentCollection {#113541 …}
    #createdAt: DateTime @1751039608 {#113515
      date: 2025-06-27 17:53:28.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753970307 {#113516
      date: 2025-07-31 15:58:27.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113527 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114448
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113520}
        #id: 40153
        #name: "IEEE 450:1972"
        #slug: "ieee-450-1972-ieee00005853-242938"
        #description: """
          Revision Standard - Superseded.<br />\n
          Proper maintenance will prolong the life of a battery and will aid in assuring that it is capable of supplying its design power requirements. A good battery maintenance program will serve as a valuable aid in determining the need for battery replacement. Station battery maintenance should be performed by personnel knowledgeable of batteries and the safety precautions involved.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended practices of maintenance. test schedules. and testing procedures that can be used to optimize life and performance from large lead storage batteries. It also provides indications to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation<br />\n
          batteries) that are equally as effective<br />\n
          but arc beyond the scope of this document.<br />\n
          Sizing. installation, other battery types. and<br />\n
          application are also beyond the scope
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Stationary Type Power Plant and Substation Lead Storage Batteries"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113529 …}
    #channels: Doctrine\ORM\PersistentCollection {#113535 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113531 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113533 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113521 …}
    -apiLastModifiedAt: DateTime @1743289200 {#113517
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113518
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @79311600 {#113519
      date: 1972-07-07 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 7
    -documents: Doctrine\ORM\PersistentCollection {#113523 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113525 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#114515
  +product: App\Entity\Product\Product {#113520
    #id: 11286
    #code: "IEEE00005853"
    #attributes: Doctrine\ORM\PersistentCollection {#113537 …}
    #variants: Doctrine\ORM\PersistentCollection {#113539 …}
    #options: Doctrine\ORM\PersistentCollection {#113543 …}
    #associations: Doctrine\ORM\PersistentCollection {#113541 …}
    #createdAt: DateTime @1751039608 {#113515
      date: 2025-06-27 17:53:28.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753970307 {#113516
      date: 2025-07-31 15:58:27.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113527 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#114448
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113520}
        #id: 40153
        #name: "IEEE 450:1972"
        #slug: "ieee-450-1972-ieee00005853-242938"
        #description: """
          Revision Standard - Superseded.<br />\n
          Proper maintenance will prolong the life of a battery and will aid in assuring that it is capable of supplying its design power requirements. A good battery maintenance program will serve as a valuable aid in determining the need for battery replacement. Station battery maintenance should be performed by personnel knowledgeable of batteries and the safety precautions involved.<br />\n
          \t\t\t\t<br />\n
          This document is limited to providing recommended practices of maintenance. test schedules. and testing procedures that can be used to optimize life and performance from large lead storage batteries. It also provides indications to determine when batteries should be replaced. There are other test procedures and replacement techniques used within the industry (especially for smaller substation<br />\n
          batteries) that are equally as effective<br />\n
          but arc beyond the scope of this document.<br />\n
          Sizing. installation, other battery types. and<br />\n
          application are also beyond the scope
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Stationary Type Power Plant and Substation Lead Storage Batteries"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113529 …}
    #channels: Doctrine\ORM\PersistentCollection {#113535 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113531 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113533 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113521 …}
    -apiLastModifiedAt: DateTime @1743289200 {#113517
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113518
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @79311600 {#113519
      date: 1972-07-07 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "450"
    -bookCollection: ""
    -pageCount: 7
    -documents: Doctrine\ORM\PersistentCollection {#113523 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113525 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductCard App\Twig\Components\ProductCard 454.0 MiB 8.24 ms
Input props
[
  "product" => App\Entity\Product\Product {#136067
    #id: 8461
    #code: "IEEE00000505"
    #attributes: Doctrine\ORM\PersistentCollection {#136091 …}
    #variants: Doctrine\ORM\PersistentCollection {#136089 …}
    #options: Doctrine\ORM\PersistentCollection {#136084 …}
    #associations: Doctrine\ORM\PersistentCollection {#136087 …}
    #createdAt: DateTime @1751037435 {#136080
      date: 2025-06-27 17:17:15.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#136073
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#136102 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#136191
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#136067}
        #id: 28853
        #name: "IEEE 308:1980"
        #slug: "ieee-308-1980-ieee00000505-240113"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 308-1991. Class 1E portions of AC and DC power systems and instrumentation and control power systems in single-unit and multiunit nuclear power generating stations are covered. Not included are the preferred power supply; unit generator(s) and their buses; generator breaker; step-up, auxiliary, and start-up transformers; connections to the station switchyard; switchyard; transmission lines; and the transmission network. The intent is to provide criteria for the determination of Class 1E power system design features, criteria for sharing Class 1E power systems in multiunit stations, and the requirements for their testing and surveillance.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard Criteria for Class 1E Power Systems for Nuclear Power Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#136100 …}
    #channels: Doctrine\ORM\PersistentCollection {#136093 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#136097 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#136095 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#136107 …}
    -apiLastModifiedAt: DateTime @1754517600 {#136066
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#136115
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @340585200 {#136086
      date: 1980-10-17 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "308"
    -bookCollection: ""
    -pageCount: 28
    -documents: Doctrine\ORM\PersistentCollection {#136106 …}
    -favorites: Doctrine\ORM\PersistentCollection {#136104 …}
  }
  "layout" => "vertical"
  "showPrice" => true
  "showStatusBadges" => true
  "additionalClasses" => "product__teaser--with-grey-border"
  "hasStretchedLink" => true
  "hoverType" => "shadow"
  "linkLabel" => "See more"
]
Attributes
[]
Component
App\Twig\Components\ProductCard {#136159
  +product: App\Entity\Product\Product {#136067
    #id: 8461
    #code: "IEEE00000505"
    #attributes: Doctrine\ORM\PersistentCollection {#136091 …}
    #variants: Doctrine\ORM\PersistentCollection {#136089 …}
    #options: Doctrine\ORM\PersistentCollection {#136084 …}
    #associations: Doctrine\ORM\PersistentCollection {#136087 …}
    #createdAt: DateTime @1751037435 {#136080
      date: 2025-06-27 17:17:15.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#136073
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#136102 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#136191
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#136067}
        #id: 28853
        #name: "IEEE 308:1980"
        #slug: "ieee-308-1980-ieee00000505-240113"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 308-1991. Class 1E portions of AC and DC power systems and instrumentation and control power systems in single-unit and multiunit nuclear power generating stations are covered. Not included are the preferred power supply; unit generator(s) and their buses; generator breaker; step-up, auxiliary, and start-up transformers; connections to the station switchyard; switchyard; transmission lines; and the transmission network. The intent is to provide criteria for the determination of Class 1E power system design features, criteria for sharing Class 1E power systems in multiunit stations, and the requirements for their testing and surveillance.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard Criteria for Class 1E Power Systems for Nuclear Power Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#136100 …}
    #channels: Doctrine\ORM\PersistentCollection {#136093 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#136097 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#136095 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#136107 …}
    -apiLastModifiedAt: DateTime @1754517600 {#136066
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#136115
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @340585200 {#136086
      date: 1980-10-17 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "308"
    -bookCollection: ""
    -pageCount: 28
    -documents: Doctrine\ORM\PersistentCollection {#136106 …}
    -favorites: Doctrine\ORM\PersistentCollection {#136104 …}
  }
  +layout: "vertical"
  +showPrice: true
  +showStatusBadges: true
  +additionalClasses: "product__teaser--with-grey-border"
  +linkLabel: "See more"
  +imageFilter: "product_thumbnail_teaser"
  +hasStretchedLink: true
  +backgroundColor: "white"
  +hoverType: "shadow"
}
ProductState App\Twig\Components\ProductState 454.0 MiB 0.23 ms
Input props
[
  "product" => App\Entity\Product\Product {#136067
    #id: 8461
    #code: "IEEE00000505"
    #attributes: Doctrine\ORM\PersistentCollection {#136091 …}
    #variants: Doctrine\ORM\PersistentCollection {#136089 …}
    #options: Doctrine\ORM\PersistentCollection {#136084 …}
    #associations: Doctrine\ORM\PersistentCollection {#136087 …}
    #createdAt: DateTime @1751037435 {#136080
      date: 2025-06-27 17:17:15.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#136073
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#136102 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#136191
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#136067}
        #id: 28853
        #name: "IEEE 308:1980"
        #slug: "ieee-308-1980-ieee00000505-240113"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 308-1991. Class 1E portions of AC and DC power systems and instrumentation and control power systems in single-unit and multiunit nuclear power generating stations are covered. Not included are the preferred power supply; unit generator(s) and their buses; generator breaker; step-up, auxiliary, and start-up transformers; connections to the station switchyard; switchyard; transmission lines; and the transmission network. The intent is to provide criteria for the determination of Class 1E power system design features, criteria for sharing Class 1E power systems in multiunit stations, and the requirements for their testing and surveillance.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard Criteria for Class 1E Power Systems for Nuclear Power Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#136100 …}
    #channels: Doctrine\ORM\PersistentCollection {#136093 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#136097 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#136095 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#136107 …}
    -apiLastModifiedAt: DateTime @1754517600 {#136066
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#136115
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @340585200 {#136086
      date: 1980-10-17 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "308"
    -bookCollection: ""
    -pageCount: 28
    -documents: Doctrine\ORM\PersistentCollection {#136106 …}
    -favorites: Doctrine\ORM\PersistentCollection {#136104 …}
  }
]
Attributes
[
  "showFullLabel" => false
]
Component
App\Twig\Components\ProductState {#136195
  +product: App\Entity\Product\Product {#136067
    #id: 8461
    #code: "IEEE00000505"
    #attributes: Doctrine\ORM\PersistentCollection {#136091 …}
    #variants: Doctrine\ORM\PersistentCollection {#136089 …}
    #options: Doctrine\ORM\PersistentCollection {#136084 …}
    #associations: Doctrine\ORM\PersistentCollection {#136087 …}
    #createdAt: DateTime @1751037435 {#136080
      date: 2025-06-27 17:17:15.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#136073
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#136102 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#136191
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#136067}
        #id: 28853
        #name: "IEEE 308:1980"
        #slug: "ieee-308-1980-ieee00000505-240113"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 308-1991. Class 1E portions of AC and DC power systems and instrumentation and control power systems in single-unit and multiunit nuclear power generating stations are covered. Not included are the preferred power supply; unit generator(s) and their buses; generator breaker; step-up, auxiliary, and start-up transformers; connections to the station switchyard; switchyard; transmission lines; and the transmission network. The intent is to provide criteria for the determination of Class 1E power system design features, criteria for sharing Class 1E power systems in multiunit stations, and the requirements for their testing and surveillance.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard Criteria for Class 1E Power Systems for Nuclear Power Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#136100 …}
    #channels: Doctrine\ORM\PersistentCollection {#136093 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#136097 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#136095 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#136107 …}
    -apiLastModifiedAt: DateTime @1754517600 {#136066
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#136115
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @340585200 {#136086
      date: 1980-10-17 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "308"
    -bookCollection: ""
    -pageCount: 28
    -documents: Doctrine\ORM\PersistentCollection {#136106 …}
    -favorites: Doctrine\ORM\PersistentCollection {#136104 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 454.0 MiB 0.71 ms
Input props
[
  "product" => App\Entity\Product\Product {#136067
    #id: 8461
    #code: "IEEE00000505"
    #attributes: Doctrine\ORM\PersistentCollection {#136091 …}
    #variants: Doctrine\ORM\PersistentCollection {#136089 …}
    #options: Doctrine\ORM\PersistentCollection {#136084 …}
    #associations: Doctrine\ORM\PersistentCollection {#136087 …}
    #createdAt: DateTime @1751037435 {#136080
      date: 2025-06-27 17:17:15.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#136073
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#136102 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#136191
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#136067}
        #id: 28853
        #name: "IEEE 308:1980"
        #slug: "ieee-308-1980-ieee00000505-240113"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 308-1991. Class 1E portions of AC and DC power systems and instrumentation and control power systems in single-unit and multiunit nuclear power generating stations are covered. Not included are the preferred power supply; unit generator(s) and their buses; generator breaker; step-up, auxiliary, and start-up transformers; connections to the station switchyard; switchyard; transmission lines; and the transmission network. The intent is to provide criteria for the determination of Class 1E power system design features, criteria for sharing Class 1E power systems in multiunit stations, and the requirements for their testing and surveillance.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard Criteria for Class 1E Power Systems for Nuclear Power Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#136100 …}
    #channels: Doctrine\ORM\PersistentCollection {#136093 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#136097 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#136095 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#136107 …}
    -apiLastModifiedAt: DateTime @1754517600 {#136066
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#136115
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @340585200 {#136086
      date: 1980-10-17 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "308"
    -bookCollection: ""
    -pageCount: 28
    -documents: Doctrine\ORM\PersistentCollection {#136106 …}
    -favorites: Doctrine\ORM\PersistentCollection {#136104 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#136273
  +product: App\Entity\Product\Product {#136067
    #id: 8461
    #code: "IEEE00000505"
    #attributes: Doctrine\ORM\PersistentCollection {#136091 …}
    #variants: Doctrine\ORM\PersistentCollection {#136089 …}
    #options: Doctrine\ORM\PersistentCollection {#136084 …}
    #associations: Doctrine\ORM\PersistentCollection {#136087 …}
    #createdAt: DateTime @1751037435 {#136080
      date: 2025-06-27 17:17:15.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#136073
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#136102 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#136191
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#136067}
        #id: 28853
        #name: "IEEE 308:1980"
        #slug: "ieee-308-1980-ieee00000505-240113"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 308-1991. Class 1E portions of AC and DC power systems and instrumentation and control power systems in single-unit and multiunit nuclear power generating stations are covered. Not included are the preferred power supply; unit generator(s) and their buses; generator breaker; step-up, auxiliary, and start-up transformers; connections to the station switchyard; switchyard; transmission lines; and the transmission network. The intent is to provide criteria for the determination of Class 1E power system design features, criteria for sharing Class 1E power systems in multiunit stations, and the requirements for their testing and surveillance.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard Criteria for Class 1E Power Systems for Nuclear Power Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#136100 …}
    #channels: Doctrine\ORM\PersistentCollection {#136093 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#136097 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#136095 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#136107 …}
    -apiLastModifiedAt: DateTime @1754517600 {#136066
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#136115
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @340585200 {#136086
      date: 1980-10-17 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "308"
    -bookCollection: ""
    -pageCount: 28
    -documents: Doctrine\ORM\PersistentCollection {#136106 …}
    -favorites: Doctrine\ORM\PersistentCollection {#136104 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}