Symfony Profiler

[
  "product" => App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
  "showFullLabel" => "true"
]

[
  "showFullLabel" => "true"
]

App\Twig\Components\ProductState {#93008
  +product: App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
    "Confirmed"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
]

App\Twig\Components\ProductType {#93201
  +product: App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
  +label: "Standard"
  -typeAttributeCode: "type"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
]

App\Twig\Components\ProductMostRecent {#93276
  +product: App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
  "showFullLabel" => "true"
]

[
  "showFullLabel" => "true"
]

App\Twig\Components\ProductState {#106701
  +product: App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
]

App\Twig\Components\ProductMostRecent {#106800
  +product: App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#93699
    #id: 10383
    #code: "IEEE00004283"
    #attributes: Doctrine\ORM\PersistentCollection {#93679 …}
    #variants: Doctrine\ORM\PersistentCollection {#93676 …}
    #options: Doctrine\ORM\PersistentCollection {#93672 …}
    #associations: Doctrine\ORM\PersistentCollection {#93668 …}
    #createdAt: DateTime @1751039028 {#93706
      date: 2025-06-27 17:43:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93685
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93690 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93731
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93699}
        #id: 36541
        #name: "IEEE 367:2012"
        #slug: "ieee-367-2012-ieee00004283-242035"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This standard provides guidance for the calculation of power station GPR and LI voltages and guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. b) The zone of influence (ZOI) of the power station GPR. c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors. d) The channel time requirements for metallic telecommunication facilities where non-interruptible channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93688 …}
    #channels: Doctrine\ORM\PersistentCollection {#93681 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93686 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93683 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93696 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93669
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1684706400 {#93705
      date: 2023-05-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1337551200 {#93704
      date: 2012-05-21 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1680127200 {#93698
      date: 2023-03-30 00:00:00.0 Europe/Paris (+02:00)
    }
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 168
    -documents: Doctrine\ORM\PersistentCollection {#93694 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93692 …}
  }
  "showFullLabel" => "true"
]

[
  "showFullLabel" => "true"
]

App\Twig\Components\ProductState {#113449
  +product: App\Entity\Product\Product {#93699
    #id: 10383
    #code: "IEEE00004283"
    #attributes: Doctrine\ORM\PersistentCollection {#93679 …}
    #variants: Doctrine\ORM\PersistentCollection {#93676 …}
    #options: Doctrine\ORM\PersistentCollection {#93672 …}
    #associations: Doctrine\ORM\PersistentCollection {#93668 …}
    #createdAt: DateTime @1751039028 {#93706
      date: 2025-06-27 17:43:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93685
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93690 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93731
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93699}
        #id: 36541
        #name: "IEEE 367:2012"
        #slug: "ieee-367-2012-ieee00004283-242035"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This standard provides guidance for the calculation of power station GPR and LI voltages and guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. b) The zone of influence (ZOI) of the power station GPR. c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors. d) The channel time requirements for metallic telecommunication facilities where non-interruptible channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93688 …}
    #channels: Doctrine\ORM\PersistentCollection {#93681 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93686 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93683 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93696 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93669
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1684706400 {#93705
      date: 2023-05-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1337551200 {#93704
      date: 2012-05-21 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1680127200 {#93698
      date: 2023-03-30 00:00:00.0 Europe/Paris (+02:00)
    }
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 168
    -documents: Doctrine\ORM\PersistentCollection {#93694 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93692 …}
  }
  +appearance: "state-withdrawn"
  +labels: [
    "Withdrawn"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#93699
    #id: 10383
    #code: "IEEE00004283"
    #attributes: Doctrine\ORM\PersistentCollection {#93679 …}
    #variants: Doctrine\ORM\PersistentCollection {#93676 …}
    #options: Doctrine\ORM\PersistentCollection {#93672 …}
    #associations: Doctrine\ORM\PersistentCollection {#93668 …}
    #createdAt: DateTime @1751039028 {#93706
      date: 2025-06-27 17:43:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93685
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93690 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93731
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93699}
        #id: 36541
        #name: "IEEE 367:2012"
        #slug: "ieee-367-2012-ieee00004283-242035"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This standard provides guidance for the calculation of power station GPR and LI voltages and guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. b) The zone of influence (ZOI) of the power station GPR. c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors. d) The channel time requirements for metallic telecommunication facilities where non-interruptible channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93688 …}
    #channels: Doctrine\ORM\PersistentCollection {#93681 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93686 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93683 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93696 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93669
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1684706400 {#93705
      date: 2023-05-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1337551200 {#93704
      date: 2012-05-21 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1680127200 {#93698
      date: 2023-03-30 00:00:00.0 Europe/Paris (+02:00)
    }
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 168
    -documents: Doctrine\ORM\PersistentCollection {#93694 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93692 …}
  }
]

App\Twig\Components\ProductMostRecent {#113516
  +product: App\Entity\Product\Product {#93699
    #id: 10383
    #code: "IEEE00004283"
    #attributes: Doctrine\ORM\PersistentCollection {#93679 …}
    #variants: Doctrine\ORM\PersistentCollection {#93676 …}
    #options: Doctrine\ORM\PersistentCollection {#93672 …}
    #associations: Doctrine\ORM\PersistentCollection {#93668 …}
    #createdAt: DateTime @1751039028 {#93706
      date: 2025-06-27 17:43:48.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93685
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93690 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93731
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93699}
        #id: 36541
        #name: "IEEE 367:2012"
        #slug: "ieee-367-2012-ieee00004283-242035"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This standard provides guidance for the calculation of power station GPR and LI voltages and guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. b) The zone of influence (ZOI) of the power station GPR. c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors. d) The channel time requirements for metallic telecommunication facilities where non-interruptible channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93688 …}
    #channels: Doctrine\ORM\PersistentCollection {#93681 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93686 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93683 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93696 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93669
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1684706400 {#93705
      date: 2023-05-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1337551200 {#93704
      date: 2012-05-21 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1680127200 {#93698
      date: 2023-03-30 00:00:00.0 Europe/Paris (+02:00)
    }
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 168
    -documents: Doctrine\ORM\PersistentCollection {#93694 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93692 …}
  }
  +label: "Most Recent"
  +icon: "check-xs"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
  "showFullLabel" => "true"
]

[
  "showFullLabel" => "true"
]

App\Twig\Components\ProductState {#113581
  +product: App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
    "Confirmed"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
]

App\Twig\Components\ProductMostRecent {#113608
  +product: App\Entity\Product\Product {#7311
    #id: 8495
    #code: "IEEE00000566"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
    #options: Doctrine\ORM\PersistentCollection {#7916 …}
    #associations: Doctrine\ORM\PersistentCollection {#7900 …}
    #createdAt: DateTime @1751037466 {#7274
      date: 2025-06-27 17:17:46.0 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 {#7922 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7921
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7311}
        #id: 28989
        #name: "IEEE 367:1996 (R2002)"
        #slug: "ieee-367-1996-r2002-ieee00000566-240147"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance for the calculation of power station ground potential rise (GPR) and longitudinal induction (LI) voltages is provided, as well as guidance for their appropriate reduction from worst-case values, for use in metallic telecommunication protection design.<br />\n
          \t\t\t\t<br />\n
          This recommended practice provides guidance for the calculation of power station GPR and LI voltages, as well as guidance for their appropriate reduction from worst-case values for use in metallic telecommunication protection design. Information is also included for the determination of the following: a) The fault current and the earth return current. (The probability, waveform, and duration of these currents and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X / R ratio are discussed.)<br />\n
          b) The zone of inßuence (ZOI) of the power station GPR.<br />\n
          c) The calculation of the inducing currents, the mutual impedance between power and metallic telecommunication facilities, and shield factors.<br />\n
          d) The channel time requirements for metallic telecommunication facilities where non-interruptible<br />\n
          channels are required for protective relaying.<br />\n
          To review and update existing standard 367-1987 as required.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …}
    #channels: Doctrine\ORM\PersistentCollection {#7628 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7613 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7645 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …}
    -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 @849308400 {#7318
      date: 1996-11-30 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: DateTime @1016665200 {#7316
      date: 2002-03-21 00:00:00.0 Europe/Paris (+01:00)
    }
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 144
    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7500 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
  "showFullLabel" => "true"
]

[
  "showFullLabel" => "true"
]

App\Twig\Components\ProductState {#113672
  +product: App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
]

App\Twig\Components\ProductMostRecent {#113699
  +product: App\Entity\Product\Product {#106685
    #id: 8494
    #code: "IEEE00000565"
    #attributes: Doctrine\ORM\PersistentCollection {#106668 …}
    #variants: Doctrine\ORM\PersistentCollection {#106665 …}
    #options: Doctrine\ORM\PersistentCollection {#106661 …}
    #associations: Doctrine\ORM\PersistentCollection {#106663 …}
    #createdAt: DateTime @1751037465 {#106693
      date: 2025-06-27 17:17:45.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#106666
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106679 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106718
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106685}
        #id: 28985
        #name: "IEEE 367:1987"
        #slug: "ieee-367-1987-ieee00000565-240146"
        #description: """
          Revision Standard - Superseded.<br />\n
          Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.<br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication, protection, and relay engineers in determining the “appropriate” values of power station ground potential rise (GPR) or the longitudinally induced voltages (LI) into wire-line telecommunications facilities (or both) including their probability, waveform, and duration, which are to be used in developing the specifications for systems and component protection. Suitably rated protection devices are required for personnel safety and for the protection and continuity of service for wire-line facilities that either enter electric power stations or that are otherwise exposed to the influence of high-electric power circuits. (See ANSI/IEEE Std 487-1980 [51]) This standard provides guidance for the calculation of these interfering voltages and guidance for their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of (1) The fault current and earth return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these GPR and LI calculations as well as the effective X/R ratio. (2) The zone of influence of the power station GPR. (3) The calculation of the inducing currents, the mutual impedance between (4) The channel time requirements for wire-line telecommunication facilities power and wire-line telecommunication facilities, and shield factors. where noninterruptible channels are required for protective relaying, etc.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106676 …}
    #channels: Doctrine\ORM\PersistentCollection {#106670 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106674 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106672 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106686 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106653
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106692
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @578268000 {#106691
      date: 1988-04-29 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 165
    -documents: Doctrine\ORM\PersistentCollection {#106683 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106681 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#113378
    #id: 11662
    #code: "IEEE00006422"
    #attributes: Doctrine\ORM\PersistentCollection {#113394 …}
    #variants: Doctrine\ORM\PersistentCollection {#113396 …}
    #options: Doctrine\ORM\PersistentCollection {#113400 …}
    #associations: Doctrine\ORM\PersistentCollection {#113398 …}
    #createdAt: DateTime @1751039877 {#113369
      date: 2025-06-27 17:57:57.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#113367
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113384 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113765
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113378}
        #id: 41657
        #name: "ANSI/IEEE 367:1979"
        #slug: "ansi-ieee-367-1979-ieee00006422-243314"
        #description: """
           - Superseded.<br />\n
          <br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication and protective relay engineers in determining the maximum power station ground potential rise, or induced voltages, or both. Suitably rated protective devices are required for personnel safety and for the protection and continuity of service of wire line telecommunication facilities entering electrical power stations, or otherwise exposed to the influence of electrical power circuits. This guide provides guidance for the calculation of these maximum voltages and for the acceptance of values lower than maximum, as well as the time requirements of communication channels where protective relaying is involved
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113386 …}
    #channels: Doctrine\ORM\PersistentCollection {#113392 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113388 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113390 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113377 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113370
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113363
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @314319600 {#113360
      date: 1979-12-18 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113380 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113382 …}
  }
  "showFullLabel" => "true"
]

[
  "showFullLabel" => "true"
]

App\Twig\Components\ProductState {#113780
  +product: App\Entity\Product\Product {#113378
    #id: 11662
    #code: "IEEE00006422"
    #attributes: Doctrine\ORM\PersistentCollection {#113394 …}
    #variants: Doctrine\ORM\PersistentCollection {#113396 …}
    #options: Doctrine\ORM\PersistentCollection {#113400 …}
    #associations: Doctrine\ORM\PersistentCollection {#113398 …}
    #createdAt: DateTime @1751039877 {#113369
      date: 2025-06-27 17:57:57.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#113367
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113384 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113765
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113378}
        #id: 41657
        #name: "ANSI/IEEE 367:1979"
        #slug: "ansi-ieee-367-1979-ieee00006422-243314"
        #description: """
           - Superseded.<br />\n
          <br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication and protective relay engineers in determining the maximum power station ground potential rise, or induced voltages, or both. Suitably rated protective devices are required for personnel safety and for the protection and continuity of service of wire line telecommunication facilities entering electrical power stations, or otherwise exposed to the influence of electrical power circuits. This guide provides guidance for the calculation of these maximum voltages and for the acceptance of values lower than maximum, as well as the time requirements of communication channels where protective relaying is involved
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113386 …}
    #channels: Doctrine\ORM\PersistentCollection {#113392 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113388 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113390 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113377 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113370
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113363
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @314319600 {#113360
      date: 1979-12-18 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113380 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113382 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}

[
  "product" => App\Entity\Product\Product {#113378
    #id: 11662
    #code: "IEEE00006422"
    #attributes: Doctrine\ORM\PersistentCollection {#113394 …}
    #variants: Doctrine\ORM\PersistentCollection {#113396 …}
    #options: Doctrine\ORM\PersistentCollection {#113400 …}
    #associations: Doctrine\ORM\PersistentCollection {#113398 …}
    #createdAt: DateTime @1751039877 {#113369
      date: 2025-06-27 17:57:57.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#113367
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113384 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113765
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113378}
        #id: 41657
        #name: "ANSI/IEEE 367:1979"
        #slug: "ansi-ieee-367-1979-ieee00006422-243314"
        #description: """
           - Superseded.<br />\n
          <br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication and protective relay engineers in determining the maximum power station ground potential rise, or induced voltages, or both. Suitably rated protective devices are required for personnel safety and for the protection and continuity of service of wire line telecommunication facilities entering electrical power stations, or otherwise exposed to the influence of electrical power circuits. This guide provides guidance for the calculation of these maximum voltages and for the acceptance of values lower than maximum, as well as the time requirements of communication channels where protective relaying is involved
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113386 …}
    #channels: Doctrine\ORM\PersistentCollection {#113392 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113388 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113390 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113377 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113370
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113363
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @314319600 {#113360
      date: 1979-12-18 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113380 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113382 …}
  }
]

App\Twig\Components\ProductMostRecent {#113832
  +product: App\Entity\Product\Product {#113378
    #id: 11662
    #code: "IEEE00006422"
    #attributes: Doctrine\ORM\PersistentCollection {#113394 …}
    #variants: Doctrine\ORM\PersistentCollection {#113396 …}
    #options: Doctrine\ORM\PersistentCollection {#113400 …}
    #associations: Doctrine\ORM\PersistentCollection {#113398 …}
    #createdAt: DateTime @1751039877 {#113369
      date: 2025-06-27 17:57:57.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#113367
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#113384 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#113765
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#113378}
        #id: 41657
        #name: "ANSI/IEEE 367:1979"
        #slug: "ansi-ieee-367-1979-ieee00006422-243314"
        #description: """
           - Superseded.<br />\n
          <br />\n
          \t\t\t\t<br />\n
          Difficulties are experienced by telecommunication and protective relay engineers in determining the maximum power station ground potential rise, or induced voltages, or both. Suitably rated protective devices are required for personnel safety and for the protection and continuity of service of wire line telecommunication facilities entering electrical power stations, or otherwise exposed to the influence of electrical power circuits. This guide provides guidance for the calculation of these maximum voltages and for the acceptance of values lower than maximum, as well as the time requirements of communication channels where protective relaying is involved
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#113386 …}
    #channels: Doctrine\ORM\PersistentCollection {#113392 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …}
    #reviews: Doctrine\ORM\PersistentCollection {#113388 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#113390 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#113377 …}
    -apiLastModifiedAt: DateTime @1754517600 {#113370
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#113363
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @314319600 {#113360
      date: 1979-12-18 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "367"
    -bookCollection: ""
    -pageCount: 56
    -documents: Doctrine\ORM\PersistentCollection {#113380 …}
    -favorites: Doctrine\ORM\PersistentCollection {#113382 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}