GET https://dev.normadoc.fr/_partial/cart/summary?template=%40SyliusShop%2FCart%2F_widget.html.twig

Components

3 Twig Components
13 Render Count
6 ms Render Time
394.0 MiB Memory Usage

Components

Name Metadata Render Count Render Time
ProductState
"App\Twig\Components\ProductState"
components/ProductState.html.twig
6 1.31ms
ProductMostRecent
"App\Twig\Components\ProductMostRecent"
components/ProductMostRecent.html.twig
6 4.33ms
ProductType
"App\Twig\Components\ProductType"
components/ProductType.html.twig
1 0.21ms

Render calls

ProductState App\Twig\Components\ProductState 394.0 MiB 0.29 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#92877
  +product: App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -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 394.0 MiB 0.21 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductType {#93057
  +product: App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -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 394.0 MiB 0.66 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#93132
  +product: App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -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 394.0 MiB 0.20 ms
Input props
[
  "product" => App\Entity\Product\Product {#93541
    #id: 11163
    #code: "IEEE00005662"
    #attributes: Doctrine\ORM\PersistentCollection {#93523 …}
    #variants: Doctrine\ORM\PersistentCollection {#93520 …}
    #options: Doctrine\ORM\PersistentCollection {#93516 …}
    #associations: Doctrine\ORM\PersistentCollection {#93518 …}
    #createdAt: DateTime @1751039519 {#93549
      date: 2025-06-27 17:51:59.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753969918 {#93528
      date: 2025-07-31 15:51:58.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93534 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93569
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93541}
        #id: 39661
        #name: "IEEE 487:2015"
        #slug: "ieee-487-2015-ieee00005662-242815"
        #description: """
          Revision Standard - Active.<br />\n
          General considerations are presented for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487(TM) family of standards (i.e., dot-series) including fundamental protection theory; basic electrical protection philosophy, concepts, and designs; protection apparatus; service types; reliability; service performance objective (SPO) classifications; and transmission considerations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.<br />\n
          \t\t\t\t<br />\n
          This standard presents general consideration for special HVP systems intended to protect telecommunications facilities serving electric supply locations. This standard contains material common to all of the IEEE 487(TM) family of standards including fundamental protection theory and basic electrical protection concepts and designs.<br />\n
          This standard presents general considerations for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487 family of standards (i.e., dot-series) including fundamental protection theory and basic electrical protection concepts and designs. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard for the Electrical Protection of Communications Facilities Serving Electric Supply Locations -- General Considerations"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93532 …}
    #channels: Doctrine\ORM\PersistentCollection {#93525 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93530 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93527 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93542 …}
    -apiLastModifiedAt: DateTime @1743289200 {#93512
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#93548
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1438293600 {#93547
      date: 2015-07-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 106
    -documents: Doctrine\ORM\PersistentCollection {#93538 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93536 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#106798
  +product: App\Entity\Product\Product {#93541
    #id: 11163
    #code: "IEEE00005662"
    #attributes: Doctrine\ORM\PersistentCollection {#93523 …}
    #variants: Doctrine\ORM\PersistentCollection {#93520 …}
    #options: Doctrine\ORM\PersistentCollection {#93516 …}
    #associations: Doctrine\ORM\PersistentCollection {#93518 …}
    #createdAt: DateTime @1751039519 {#93549
      date: 2025-06-27 17:51:59.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753969918 {#93528
      date: 2025-07-31 15:51:58.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93534 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93569
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93541}
        #id: 39661
        #name: "IEEE 487:2015"
        #slug: "ieee-487-2015-ieee00005662-242815"
        #description: """
          Revision Standard - Active.<br />\n
          General considerations are presented for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487(TM) family of standards (i.e., dot-series) including fundamental protection theory; basic electrical protection philosophy, concepts, and designs; protection apparatus; service types; reliability; service performance objective (SPO) classifications; and transmission considerations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.<br />\n
          \t\t\t\t<br />\n
          This standard presents general consideration for special HVP systems intended to protect telecommunications facilities serving electric supply locations. This standard contains material common to all of the IEEE 487(TM) family of standards including fundamental protection theory and basic electrical protection concepts and designs.<br />\n
          This standard presents general considerations for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487 family of standards (i.e., dot-series) including fundamental protection theory and basic electrical protection concepts and designs. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard for the Electrical Protection of Communications Facilities Serving Electric Supply Locations -- General Considerations"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93532 …}
    #channels: Doctrine\ORM\PersistentCollection {#93525 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93530 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93527 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93542 …}
    -apiLastModifiedAt: DateTime @1743289200 {#93512
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#93548
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1438293600 {#93547
      date: 2015-07-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 106
    -documents: Doctrine\ORM\PersistentCollection {#93538 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93536 …}
  }
  +appearance: "state-active"
  +labels: [
    "Active"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 394.0 MiB 0.71 ms
Input props
[
  "product" => App\Entity\Product\Product {#93541
    #id: 11163
    #code: "IEEE00005662"
    #attributes: Doctrine\ORM\PersistentCollection {#93523 …}
    #variants: Doctrine\ORM\PersistentCollection {#93520 …}
    #options: Doctrine\ORM\PersistentCollection {#93516 …}
    #associations: Doctrine\ORM\PersistentCollection {#93518 …}
    #createdAt: DateTime @1751039519 {#93549
      date: 2025-06-27 17:51:59.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753969918 {#93528
      date: 2025-07-31 15:51:58.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93534 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93569
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93541}
        #id: 39661
        #name: "IEEE 487:2015"
        #slug: "ieee-487-2015-ieee00005662-242815"
        #description: """
          Revision Standard - Active.<br />\n
          General considerations are presented for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487(TM) family of standards (i.e., dot-series) including fundamental protection theory; basic electrical protection philosophy, concepts, and designs; protection apparatus; service types; reliability; service performance objective (SPO) classifications; and transmission considerations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.<br />\n
          \t\t\t\t<br />\n
          This standard presents general consideration for special HVP systems intended to protect telecommunications facilities serving electric supply locations. This standard contains material common to all of the IEEE 487(TM) family of standards including fundamental protection theory and basic electrical protection concepts and designs.<br />\n
          This standard presents general considerations for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487 family of standards (i.e., dot-series) including fundamental protection theory and basic electrical protection concepts and designs. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard for the Electrical Protection of Communications Facilities Serving Electric Supply Locations -- General Considerations"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93532 …}
    #channels: Doctrine\ORM\PersistentCollection {#93525 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93530 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93527 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93542 …}
    -apiLastModifiedAt: DateTime @1743289200 {#93512
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#93548
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1438293600 {#93547
      date: 2015-07-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 106
    -documents: Doctrine\ORM\PersistentCollection {#93538 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93536 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#106865
  +product: App\Entity\Product\Product {#93541
    #id: 11163
    #code: "IEEE00005662"
    #attributes: Doctrine\ORM\PersistentCollection {#93523 …}
    #variants: Doctrine\ORM\PersistentCollection {#93520 …}
    #options: Doctrine\ORM\PersistentCollection {#93516 …}
    #associations: Doctrine\ORM\PersistentCollection {#93518 …}
    #createdAt: DateTime @1751039519 {#93549
      date: 2025-06-27 17:51:59.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1753969918 {#93528
      date: 2025-07-31 15:51:58.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93534 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93569
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93541}
        #id: 39661
        #name: "IEEE 487:2015"
        #slug: "ieee-487-2015-ieee00005662-242815"
        #description: """
          Revision Standard - Active.<br />\n
          General considerations are presented for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487(TM) family of standards (i.e., dot-series) including fundamental protection theory; basic electrical protection philosophy, concepts, and designs; protection apparatus; service types; reliability; service performance objective (SPO) classifications; and transmission considerations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.<br />\n
          \t\t\t\t<br />\n
          This standard presents general consideration for special HVP systems intended to protect telecommunications facilities serving electric supply locations. This standard contains material common to all of the IEEE 487(TM) family of standards including fundamental protection theory and basic electrical protection concepts and designs.<br />\n
          This standard presents general considerations for the electrical protection of telecommunications facilities serving electric supply locations. This standard contains material that is common to the IEEE 487 family of standards (i.e., dot-series) including fundamental protection theory and basic electrical protection concepts and designs. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide electrical protection against damage to telecommunications facilities and equipment, maintain reliability of service, and ensure the safety of personnel.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Standard for the Electrical Protection of Communications Facilities Serving Electric Supply Locations -- General Considerations"
        -notes: "Active"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93532 …}
    #channels: Doctrine\ORM\PersistentCollection {#93525 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93530 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93527 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93542 …}
    -apiLastModifiedAt: DateTime @1743289200 {#93512
      date: 2025-03-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#93548
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1438293600 {#93547
      date: 2015-07-31 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 106
    -documents: Doctrine\ORM\PersistentCollection {#93538 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93536 …}
  }
  +label: "Most Recent"
  +icon: "check-xs"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 394.0 MiB 0.18 ms
Input props
[
  "product" => App\Entity\Product\Product {#106669
    #id: 10101
    #code: "IEEE00003638"
    #attributes: Doctrine\ORM\PersistentCollection {#106652 …}
    #variants: Doctrine\ORM\PersistentCollection {#106649 …}
    #options: Doctrine\ORM\PersistentCollection {#106645 …}
    #associations: Doctrine\ORM\PersistentCollection {#106647 …}
    #createdAt: DateTime @1751038816 {#106637
      date: 2025-06-27 17:40:16.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#106650
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106663 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106932
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106669}
        #id: 35413
        #name: "IEEE 487:2007"
        #slug: "ieee-487-2007-ieee00003638-241753"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This recommended practice presents engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric supply locations. The following topics are included in this document: a) A description of the electric supply locations environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients; b)A discussion of special high-voltage protection devices; c)Definitions of service types and service performance objectives for electric supply locations telecommunication services; d)Special protection theory and philosophy; e)Special protection system design guidelines; f)Personnel safety considerations; g)Grounding; h)Cables with metallic members. Other telecommunication alternatives such as radio and optica fiber systems are excluded from this recommended practice.<br />\n
          This recommended practice presents workable methods for the protection of wire-line telecommunication facilities serving electric supply locations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide for personnel safety, protection against damage to telecommunication facilities and terminal equipment, and reliability of service. Disturbances may arise from a number of causes,including the following: a)Ground (earth)potential rise; b)Longitudinal induction into the serving telecommunication facilities; c)Electrical contact between power and telecommunication conductors; d)Lightning surges and switching transients induced into the telecommunication system. Divided and differing opinions exist between and within the various administrations and users regarding the merits of any one protection method, voltage limits, and equipment design characteristics. This standard is not intended to supplant specific or general instructions contained in the practices of any utility, or in any agreement between a telecommunication and a power utility. Readers of this standard should evaluate all alternative procedures, methods, voltage limits, and equipment characteristics for their own use. Different administrations and users will use either peak or rms for specifying voltage levels. In the case of leased facilities, mutually agreeable methods for the design and installation of protective equipment that may be owned by either party are recommended.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106660 …}
    #channels: Doctrine\ORM\PersistentCollection {#106654 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106658 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106656 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106670 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106677
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106681
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1191794400 {#106635
      date: 2007-10-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 134
    -documents: Doctrine\ORM\PersistentCollection {#106667 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106665 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#106947
  +product: App\Entity\Product\Product {#106669
    #id: 10101
    #code: "IEEE00003638"
    #attributes: Doctrine\ORM\PersistentCollection {#106652 …}
    #variants: Doctrine\ORM\PersistentCollection {#106649 …}
    #options: Doctrine\ORM\PersistentCollection {#106645 …}
    #associations: Doctrine\ORM\PersistentCollection {#106647 …}
    #createdAt: DateTime @1751038816 {#106637
      date: 2025-06-27 17:40:16.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#106650
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106663 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106932
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106669}
        #id: 35413
        #name: "IEEE 487:2007"
        #slug: "ieee-487-2007-ieee00003638-241753"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This recommended practice presents engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric supply locations. The following topics are included in this document: a) A description of the electric supply locations environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients; b)A discussion of special high-voltage protection devices; c)Definitions of service types and service performance objectives for electric supply locations telecommunication services; d)Special protection theory and philosophy; e)Special protection system design guidelines; f)Personnel safety considerations; g)Grounding; h)Cables with metallic members. Other telecommunication alternatives such as radio and optica fiber systems are excluded from this recommended practice.<br />\n
          This recommended practice presents workable methods for the protection of wire-line telecommunication facilities serving electric supply locations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide for personnel safety, protection against damage to telecommunication facilities and terminal equipment, and reliability of service. Disturbances may arise from a number of causes,including the following: a)Ground (earth)potential rise; b)Longitudinal induction into the serving telecommunication facilities; c)Electrical contact between power and telecommunication conductors; d)Lightning surges and switching transients induced into the telecommunication system. Divided and differing opinions exist between and within the various administrations and users regarding the merits of any one protection method, voltage limits, and equipment design characteristics. This standard is not intended to supplant specific or general instructions contained in the practices of any utility, or in any agreement between a telecommunication and a power utility. Readers of this standard should evaluate all alternative procedures, methods, voltage limits, and equipment characteristics for their own use. Different administrations and users will use either peak or rms for specifying voltage levels. In the case of leased facilities, mutually agreeable methods for the design and installation of protective equipment that may be owned by either party are recommended.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106660 …}
    #channels: Doctrine\ORM\PersistentCollection {#106654 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106658 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106656 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106670 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106677
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106681
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1191794400 {#106635
      date: 2007-10-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 134
    -documents: Doctrine\ORM\PersistentCollection {#106667 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106665 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 394.0 MiB 0.62 ms
Input props
[
  "product" => App\Entity\Product\Product {#106669
    #id: 10101
    #code: "IEEE00003638"
    #attributes: Doctrine\ORM\PersistentCollection {#106652 …}
    #variants: Doctrine\ORM\PersistentCollection {#106649 …}
    #options: Doctrine\ORM\PersistentCollection {#106645 …}
    #associations: Doctrine\ORM\PersistentCollection {#106647 …}
    #createdAt: DateTime @1751038816 {#106637
      date: 2025-06-27 17:40:16.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#106650
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106663 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106932
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106669}
        #id: 35413
        #name: "IEEE 487:2007"
        #slug: "ieee-487-2007-ieee00003638-241753"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This recommended practice presents engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric supply locations. The following topics are included in this document: a) A description of the electric supply locations environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients; b)A discussion of special high-voltage protection devices; c)Definitions of service types and service performance objectives for electric supply locations telecommunication services; d)Special protection theory and philosophy; e)Special protection system design guidelines; f)Personnel safety considerations; g)Grounding; h)Cables with metallic members. Other telecommunication alternatives such as radio and optica fiber systems are excluded from this recommended practice.<br />\n
          This recommended practice presents workable methods for the protection of wire-line telecommunication facilities serving electric supply locations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide for personnel safety, protection against damage to telecommunication facilities and terminal equipment, and reliability of service. Disturbances may arise from a number of causes,including the following: a)Ground (earth)potential rise; b)Longitudinal induction into the serving telecommunication facilities; c)Electrical contact between power and telecommunication conductors; d)Lightning surges and switching transients induced into the telecommunication system. Divided and differing opinions exist between and within the various administrations and users regarding the merits of any one protection method, voltage limits, and equipment design characteristics. This standard is not intended to supplant specific or general instructions contained in the practices of any utility, or in any agreement between a telecommunication and a power utility. Readers of this standard should evaluate all alternative procedures, methods, voltage limits, and equipment characteristics for their own use. Different administrations and users will use either peak or rms for specifying voltage levels. In the case of leased facilities, mutually agreeable methods for the design and installation of protective equipment that may be owned by either party are recommended.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106660 …}
    #channels: Doctrine\ORM\PersistentCollection {#106654 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106658 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106656 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106670 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106677
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106681
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1191794400 {#106635
      date: 2007-10-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 134
    -documents: Doctrine\ORM\PersistentCollection {#106667 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106665 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#106999
  +product: App\Entity\Product\Product {#106669
    #id: 10101
    #code: "IEEE00003638"
    #attributes: Doctrine\ORM\PersistentCollection {#106652 …}
    #variants: Doctrine\ORM\PersistentCollection {#106649 …}
    #options: Doctrine\ORM\PersistentCollection {#106645 …}
    #associations: Doctrine\ORM\PersistentCollection {#106647 …}
    #createdAt: DateTime @1751038816 {#106637
      date: 2025-06-27 17:40:16.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#106650
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106663 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106932
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106669}
        #id: 35413
        #name: "IEEE 487:2007"
        #slug: "ieee-487-2007-ieee00003638-241753"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This recommended practice presents engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric supply locations. The following topics are included in this document: a) A description of the electric supply locations environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients; b)A discussion of special high-voltage protection devices; c)Definitions of service types and service performance objectives for electric supply locations telecommunication services; d)Special protection theory and philosophy; e)Special protection system design guidelines; f)Personnel safety considerations; g)Grounding; h)Cables with metallic members. Other telecommunication alternatives such as radio and optica fiber systems are excluded from this recommended practice.<br />\n
          This recommended practice presents workable methods for the protection of wire-line telecommunication facilities serving electric supply locations. In general, special protective measures, handling procedures, and administrative procedures are necessary to provide for personnel safety, protection against damage to telecommunication facilities and terminal equipment, and reliability of service. Disturbances may arise from a number of causes,including the following: a)Ground (earth)potential rise; b)Longitudinal induction into the serving telecommunication facilities; c)Electrical contact between power and telecommunication conductors; d)Lightning surges and switching transients induced into the telecommunication system. Divided and differing opinions exist between and within the various administrations and users regarding the merits of any one protection method, voltage limits, and equipment design characteristics. This standard is not intended to supplant specific or general instructions contained in the practices of any utility, or in any agreement between a telecommunication and a power utility. Readers of this standard should evaluate all alternative procedures, methods, voltage limits, and equipment characteristics for their own use. Different administrations and users will use either peak or rms for specifying voltage levels. In the case of leased facilities, mutually agreeable methods for the design and installation of protective equipment that may be owned by either party are recommended.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106660 …}
    #channels: Doctrine\ORM\PersistentCollection {#106654 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106658 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106656 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106670 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106677
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106681
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @1191794400 {#106635
      date: 2007-10-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 134
    -documents: Doctrine\ORM\PersistentCollection {#106667 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106665 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 394.0 MiB 0.19 ms
Input props
[
  "product" => App\Entity\Product\Product {#106638
    #id: 8589
    #code: "IEEE00000713"
    #attributes: Doctrine\ORM\PersistentCollection {#106704 …}
    #variants: Doctrine\ORM\PersistentCollection {#106696 …}
    #options: Doctrine\ORM\PersistentCollection {#106701 …}
    #associations: Doctrine\ORM\PersistentCollection {#106702 …}
    #createdAt: DateTime @1751037544 {#106642
      date: 2025-06-27 17:19:04.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106641
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106719 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107065
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106638}
        #id: 29365
        #name: "IEEE 487:2000"
        #slug: "ieee-487-2000-ieee00000713-240241"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; services types, reliability, service performance objective classifications, and transmis-sion considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety. Remarks: Revised by IEEE Std 287-2007<br />\n
          \t\t\t\t<br />\n
          This project will provide recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities servind electric supply locations such as power stations and power line supporting structures.<br />\n
          To review and update existing standard 487-1992.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106714 …}
    #channels: Doctrine\ORM\PersistentCollection {#106710 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106705 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106711 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106712 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106640
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106639
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @997999200 {#106633
      date: 2001-08-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 132
    -documents: Doctrine\ORM\PersistentCollection {#106699 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106680 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#107080
  +product: App\Entity\Product\Product {#106638
    #id: 8589
    #code: "IEEE00000713"
    #attributes: Doctrine\ORM\PersistentCollection {#106704 …}
    #variants: Doctrine\ORM\PersistentCollection {#106696 …}
    #options: Doctrine\ORM\PersistentCollection {#106701 …}
    #associations: Doctrine\ORM\PersistentCollection {#106702 …}
    #createdAt: DateTime @1751037544 {#106642
      date: 2025-06-27 17:19:04.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106641
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106719 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107065
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106638}
        #id: 29365
        #name: "IEEE 487:2000"
        #slug: "ieee-487-2000-ieee00000713-240241"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; services types, reliability, service performance objective classifications, and transmis-sion considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety. Remarks: Revised by IEEE Std 287-2007<br />\n
          \t\t\t\t<br />\n
          This project will provide recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities servind electric supply locations such as power stations and power line supporting structures.<br />\n
          To review and update existing standard 487-1992.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106714 …}
    #channels: Doctrine\ORM\PersistentCollection {#106710 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106705 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106711 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106712 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106640
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106639
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @997999200 {#106633
      date: 2001-08-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 132
    -documents: Doctrine\ORM\PersistentCollection {#106699 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106680 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 394.0 MiB 0.62 ms
Input props
[
  "product" => App\Entity\Product\Product {#106638
    #id: 8589
    #code: "IEEE00000713"
    #attributes: Doctrine\ORM\PersistentCollection {#106704 …}
    #variants: Doctrine\ORM\PersistentCollection {#106696 …}
    #options: Doctrine\ORM\PersistentCollection {#106701 …}
    #associations: Doctrine\ORM\PersistentCollection {#106702 …}
    #createdAt: DateTime @1751037544 {#106642
      date: 2025-06-27 17:19:04.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106641
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106719 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107065
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106638}
        #id: 29365
        #name: "IEEE 487:2000"
        #slug: "ieee-487-2000-ieee00000713-240241"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; services types, reliability, service performance objective classifications, and transmis-sion considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety. Remarks: Revised by IEEE Std 287-2007<br />\n
          \t\t\t\t<br />\n
          This project will provide recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities servind electric supply locations such as power stations and power line supporting structures.<br />\n
          To review and update existing standard 487-1992.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106714 …}
    #channels: Doctrine\ORM\PersistentCollection {#106710 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106705 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106711 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106712 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106640
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106639
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @997999200 {#106633
      date: 2001-08-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 132
    -documents: Doctrine\ORM\PersistentCollection {#106699 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106680 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#107132
  +product: App\Entity\Product\Product {#106638
    #id: 8589
    #code: "IEEE00000713"
    #attributes: Doctrine\ORM\PersistentCollection {#106704 …}
    #variants: Doctrine\ORM\PersistentCollection {#106696 …}
    #options: Doctrine\ORM\PersistentCollection {#106701 …}
    #associations: Doctrine\ORM\PersistentCollection {#106702 …}
    #createdAt: DateTime @1751037544 {#106642
      date: 2025-06-27 17:19:04.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106641
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106719 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107065
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106638}
        #id: 29365
        #name: "IEEE 487:2000"
        #slug: "ieee-487-2000-ieee00000713-240241"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; services types, reliability, service performance objective classifications, and transmis-sion considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety. Remarks: Revised by IEEE Std 287-2007<br />\n
          \t\t\t\t<br />\n
          This project will provide recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities servind electric supply locations such as power stations and power line supporting structures.<br />\n
          To review and update existing standard 487-1992.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106714 …}
    #channels: Doctrine\ORM\PersistentCollection {#106710 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106705 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106711 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106712 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106640
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106639
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @997999200 {#106633
      date: 2001-08-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 132
    -documents: Doctrine\ORM\PersistentCollection {#106699 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106680 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 394.0 MiB 0.21 ms
Input props
[
  "product" => App\Entity\Product\Product {#106691
    #id: 8588
    #code: "IEEE00000712"
    #attributes: Doctrine\ORM\PersistentCollection {#106730 …}
    #variants: Doctrine\ORM\PersistentCollection {#106732 …}
    #options: Doctrine\ORM\PersistentCollection {#106736 …}
    #associations: Doctrine\ORM\PersistentCollection {#106734 …}
    #createdAt: DateTime @1751037543 {#106695
      date: 2025-06-27 17:19:03.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106694
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106716 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107198
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106691}
        #id: 29361
        #name: "IEEE 487:1992"
        #slug: "ieee-487-1992-ieee00000712-240240"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This document presents recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric power stations.<br />\n
          The following topics are included in this document:<br />\n
          1) A description of the power station environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients<br />\n
          2) A discussion of special high-voltage protection devices<br />\n
          3) of service types and service performance objectives for power station telecommunication services<br />\n
          4) Special protection theory and philosophy<br />\n
          5) Special protection system design guidelines<br />\n
          6) Personnel safety considerations<br />\n
          7) Grounding<br />\n
          Othere telecommunication alternatives such as radio and optical fiber systems are excluded from this document
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106722 …}
    #channels: Doctrine\ORM\PersistentCollection {#106728 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106724 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106726 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106692 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106687
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106688
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @720831600 {#106693
      date: 1992-11-04 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 128
    -documents: Doctrine\ORM\PersistentCollection {#106686 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106684 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#107213
  +product: App\Entity\Product\Product {#106691
    #id: 8588
    #code: "IEEE00000712"
    #attributes: Doctrine\ORM\PersistentCollection {#106730 …}
    #variants: Doctrine\ORM\PersistentCollection {#106732 …}
    #options: Doctrine\ORM\PersistentCollection {#106736 …}
    #associations: Doctrine\ORM\PersistentCollection {#106734 …}
    #createdAt: DateTime @1751037543 {#106695
      date: 2025-06-27 17:19:03.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106694
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106716 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107198
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106691}
        #id: 29361
        #name: "IEEE 487:1992"
        #slug: "ieee-487-1992-ieee00000712-240240"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This document presents recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric power stations.<br />\n
          The following topics are included in this document:<br />\n
          1) A description of the power station environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients<br />\n
          2) A discussion of special high-voltage protection devices<br />\n
          3) of service types and service performance objectives for power station telecommunication services<br />\n
          4) Special protection theory and philosophy<br />\n
          5) Special protection system design guidelines<br />\n
          6) Personnel safety considerations<br />\n
          7) Grounding<br />\n
          Othere telecommunication alternatives such as radio and optical fiber systems are excluded from this document
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106722 …}
    #channels: Doctrine\ORM\PersistentCollection {#106728 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106724 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106726 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106692 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106687
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106688
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @720831600 {#106693
      date: 1992-11-04 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 128
    -documents: Doctrine\ORM\PersistentCollection {#106686 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106684 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 394.0 MiB 0.84 ms
Input props
[
  "product" => App\Entity\Product\Product {#106691
    #id: 8588
    #code: "IEEE00000712"
    #attributes: Doctrine\ORM\PersistentCollection {#106730 …}
    #variants: Doctrine\ORM\PersistentCollection {#106732 …}
    #options: Doctrine\ORM\PersistentCollection {#106736 …}
    #associations: Doctrine\ORM\PersistentCollection {#106734 …}
    #createdAt: DateTime @1751037543 {#106695
      date: 2025-06-27 17:19:03.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106694
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106716 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107198
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106691}
        #id: 29361
        #name: "IEEE 487:1992"
        #slug: "ieee-487-1992-ieee00000712-240240"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This document presents recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric power stations.<br />\n
          The following topics are included in this document:<br />\n
          1) A description of the power station environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients<br />\n
          2) A discussion of special high-voltage protection devices<br />\n
          3) of service types and service performance objectives for power station telecommunication services<br />\n
          4) Special protection theory and philosophy<br />\n
          5) Special protection system design guidelines<br />\n
          6) Personnel safety considerations<br />\n
          7) Grounding<br />\n
          Othere telecommunication alternatives such as radio and optical fiber systems are excluded from this document
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106722 …}
    #channels: Doctrine\ORM\PersistentCollection {#106728 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106724 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106726 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106692 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106687
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106688
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @720831600 {#106693
      date: 1992-11-04 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 128
    -documents: Doctrine\ORM\PersistentCollection {#106686 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106684 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#107265
  +product: App\Entity\Product\Product {#106691
    #id: 8588
    #code: "IEEE00000712"
    #attributes: Doctrine\ORM\PersistentCollection {#106730 …}
    #variants: Doctrine\ORM\PersistentCollection {#106732 …}
    #options: Doctrine\ORM\PersistentCollection {#106736 …}
    #associations: Doctrine\ORM\PersistentCollection {#106734 …}
    #createdAt: DateTime @1751037543 {#106695
      date: 2025-06-27 17:19:03.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106694
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106716 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#107198
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106691}
        #id: 29361
        #name: "IEEE 487:1992"
        #slug: "ieee-487-1992-ieee00000712-240240"
        #description: """
          Revision Standard - Superseded.<br />\n
          Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; service types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          This document presents recommended engineering design practices for special high-voltage protection systems intended to protect wire-line telecommunication facilities serving electric power stations.<br />\n
          The following topics are included in this document:<br />\n
          1) A description of the power station environment, i.e., ground potential rise (GPR), induced voltages, lightning, and switching transients<br />\n
          2) A discussion of special high-voltage protection devices<br />\n
          3) of service types and service performance objectives for power station telecommunication services<br />\n
          4) Special protection theory and philosophy<br />\n
          5) Special protection system design guidelines<br />\n
          6) Personnel safety considerations<br />\n
          7) Grounding<br />\n
          Othere telecommunication alternatives such as radio and optical fiber systems are excluded from this document
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106722 …}
    #channels: Doctrine\ORM\PersistentCollection {#106728 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106724 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106726 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106692 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106687
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106688
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @720831600 {#106693
      date: 1992-11-04 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 128
    -documents: Doctrine\ORM\PersistentCollection {#106686 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106684 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 394.0 MiB 0.24 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  "showFullLabel" => "true"
]
Attributes
[
  "showFullLabel" => "true"
]
Component
App\Twig\Components\ProductState {#107329
  +product: App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -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 394.0 MiB 0.87 ms
Input props
[
  "product" => App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes
[]
Component
App\Twig\Components\ProductMostRecent {#107356
  +product: App\Entity\Product\Product {#7310
    #id: 8587
    #code: "IEEE00000711"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037542 {#7274
      date: 2025-06-27 17:19:02.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 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: 29357
        #name: "IEEE 487:1980"
        #slug: "ieee-487-1980-ieee00000711-240239"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance objective classifications, and transmission considerations; protection theory and philosophy; protection configurations; installation and inspection; and safety.<br />\n
          \t\t\t\t<br />\n
          Wire-line communication facilities serving electric power stations often require special high-voltage protection against the effects of fault-produced ground potential rise or induction voltages, or both. Some of the communication services are used for control and protective relaying purposes which may be called upon to perform critical operations during periods of these faults. This constitutes a major problem in the design of the wireline communications system since power faults usually result in the introduction of interfering voltages and currents into the communication circuit just at the time when the latter is most urgently required to perform its function.<br />\n
          It is important to note that special high-voltage protection for the purpose of personnel safety and plant protection may be required even when critical services are not involved. Effective protection of any wire-line communications circuit requires coordinated protection on all circuits.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for the Protection of Wire-Line Communication Facilities Serving Electric Power Stations"
        -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 @334533600 {#7318
      date: 1980-08-08 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "487"
    -bookCollection: ""
    -pageCount: 84
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}