GET https://dev.normadoc.fr/products/ieee-1050-1996-ieee00001536-240710

Response
200 OK
IP
216.73.216.116
Profiled on
Token
4e6a80

Components

4 Twig Components
14 Render Count
23 ms Render Time
126.0 MiB Memory Usage

Components

Name Metadata Render Count Render Time
ProductState 
"App\Twig\Components\ProductState"
components/ProductState.html.twig 		6 3.66ms
ProductMostRecent 
"App\Twig\Components\ProductMostRecent"
components/ProductMostRecent.html.twig 		6 6.94ms
ProductType 
"App\Twig\Components\ProductType"
components/ProductType.html.twig 		1 0.67ms
ProductCard 
"App\Twig\Components\ProductCard"
components/ProductCard.html.twig 		1 13.02ms

Render calls

ProductState App\Twig\Components\ProductState 92.0 MiB 2.28 ms
Input props 
[
  "product" => App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  "showFullLabel" => "true"
]
Attributes 
[
  "showFullLabel" => "true"
]
Component 
App\Twig\Components\ProductState {#92885
  +product: App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductType App\Twig\Components\ProductType 92.0 MiB 0.67 ms
Input props 
[
  "product" => App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes 
[]
Component 
App\Twig\Components\ProductType {#93056
  +product: App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +label: "Standard"
  -typeAttributeCode: "type"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 92.0 MiB 1.48 ms
Input props 
[
  "product" => App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes 
[]
Component 
App\Twig\Components\ProductMostRecent {#93131
  +product: App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 96.0 MiB 0.29 ms
Input props 
[
  "product" => App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
  "showFullLabel" => "true"
]
Attributes 
[
  "showFullLabel" => "true"
]
Component 
App\Twig\Components\ProductState {#106723
  +product: App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 98.0 MiB 1.26 ms
Input props 
[
  "product" => App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
]
Attributes 
[]
Component 
App\Twig\Components\ProductMostRecent {#106822
  +product: App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 104.0 MiB 0.27 ms
Input props 
[
  "product" => App\Entity\Product\Product {#93569
    #id: 9059
    #code: "IEEE00001537"
    #attributes: Doctrine\ORM\PersistentCollection {#93549 …}
    #variants: Doctrine\ORM\PersistentCollection {#93546 …}
    #options: Doctrine\ORM\PersistentCollection {#93542 …}
    #associations: Doctrine\ORM\PersistentCollection {#93538 …}
    #createdAt: DateTime @1751037937 {#93576
      date: 2025-06-27 17:25:37.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93555
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93560 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93601
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93569}
        #id: 31245
        #name: "IEEE 1050:2004"
        #slug: "ieee-1050-2004-ieee00001537-240711"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Revision of IEEE Std 1050-1996 Instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and suitable electric noise immunity for signal ground references in generating stations are identified.<br />\n
          \t\t\t\t<br />\n
          This revision will update the existing standard to incorporate the latest design technology as well as reformat the document for increased user-friendliness.<br />\n
          Advances in control systems technology have raised new technical issues as well as requiring older technical issues to be clarified. Enhancing the document in a manner which mimics how designers of control systems perform their design will greatly increae the value of the Guide.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93558 …}
    #channels: Doctrine\ORM\PersistentCollection {#93551 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93556 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93553 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93566 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1618524000 {#93575
      date: 2021-04-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1126648800 {#93574
      date: 2005-09-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1616626800 {#93568
      date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 104
    -documents: Doctrine\ORM\PersistentCollection {#93564 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93562 …}
  }
  "showFullLabel" => "true"
]
Attributes 
[
  "showFullLabel" => "true"
]
Component 
App\Twig\Components\ProductState {#113437
  +product: App\Entity\Product\Product {#93569
    #id: 9059
    #code: "IEEE00001537"
    #attributes: Doctrine\ORM\PersistentCollection {#93549 …}
    #variants: Doctrine\ORM\PersistentCollection {#93546 …}
    #options: Doctrine\ORM\PersistentCollection {#93542 …}
    #associations: Doctrine\ORM\PersistentCollection {#93538 …}
    #createdAt: DateTime @1751037937 {#93576
      date: 2025-06-27 17:25:37.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93555
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93560 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93601
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93569}
        #id: 31245
        #name: "IEEE 1050:2004"
        #slug: "ieee-1050-2004-ieee00001537-240711"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Revision of IEEE Std 1050-1996 Instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and suitable electric noise immunity for signal ground references in generating stations are identified.<br />\n
          \t\t\t\t<br />\n
          This revision will update the existing standard to incorporate the latest design technology as well as reformat the document for increased user-friendliness.<br />\n
          Advances in control systems technology have raised new technical issues as well as requiring older technical issues to be clarified. Enhancing the document in a manner which mimics how designers of control systems perform their design will greatly increae the value of the Guide.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93558 …}
    #channels: Doctrine\ORM\PersistentCollection {#93551 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93556 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93553 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93566 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1618524000 {#93575
      date: 2021-04-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1126648800 {#93574
      date: 2005-09-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1616626800 {#93568
      date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 104
    -documents: Doctrine\ORM\PersistentCollection {#93564 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93562 …}
  }
  +appearance: "state-withdrawn"
  +labels: [
    "Withdrawn"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 104.0 MiB 1.09 ms
Input props 
[
  "product" => App\Entity\Product\Product {#93569
    #id: 9059
    #code: "IEEE00001537"
    #attributes: Doctrine\ORM\PersistentCollection {#93549 …}
    #variants: Doctrine\ORM\PersistentCollection {#93546 …}
    #options: Doctrine\ORM\PersistentCollection {#93542 …}
    #associations: Doctrine\ORM\PersistentCollection {#93538 …}
    #createdAt: DateTime @1751037937 {#93576
      date: 2025-06-27 17:25:37.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93555
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93560 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93601
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93569}
        #id: 31245
        #name: "IEEE 1050:2004"
        #slug: "ieee-1050-2004-ieee00001537-240711"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Revision of IEEE Std 1050-1996 Instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and suitable electric noise immunity for signal ground references in generating stations are identified.<br />\n
          \t\t\t\t<br />\n
          This revision will update the existing standard to incorporate the latest design technology as well as reformat the document for increased user-friendliness.<br />\n
          Advances in control systems technology have raised new technical issues as well as requiring older technical issues to be clarified. Enhancing the document in a manner which mimics how designers of control systems perform their design will greatly increae the value of the Guide.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93558 …}
    #channels: Doctrine\ORM\PersistentCollection {#93551 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93556 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93553 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93566 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1618524000 {#93575
      date: 2021-04-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1126648800 {#93574
      date: 2005-09-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1616626800 {#93568
      date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 104
    -documents: Doctrine\ORM\PersistentCollection {#93564 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93562 …}
  }
]
Attributes 
[]
Component 
App\Twig\Components\ProductMostRecent {#113503
  +product: App\Entity\Product\Product {#93569
    #id: 9059
    #code: "IEEE00001537"
    #attributes: Doctrine\ORM\PersistentCollection {#93549 …}
    #variants: Doctrine\ORM\PersistentCollection {#93546 …}
    #options: Doctrine\ORM\PersistentCollection {#93542 …}
    #associations: Doctrine\ORM\PersistentCollection {#93538 …}
    #createdAt: DateTime @1751037937 {#93576
      date: 2025-06-27 17:25:37.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607004 {#93555
      date: 2025-08-08 00:50:04.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#93560 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#93601
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#93569}
        #id: 31245
        #name: "IEEE 1050:2004"
        #slug: "ieee-1050-2004-ieee00001537-240711"
        #description: """
          Revision Standard - Inactive-Reserved.<br />\n
          Revision of IEEE Std 1050-1996 Instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and suitable electric noise immunity for signal ground references in generating stations are identified.<br />\n
          \t\t\t\t<br />\n
          This revision will update the existing standard to incorporate the latest design technology as well as reformat the document for increased user-friendliness.<br />\n
          Advances in control systems technology have raised new technical issues as well as requiring older technical issues to be clarified. Enhancing the document in a manner which mimics how designers of control systems perform their design will greatly increae the value of the Guide.
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Inactive-Reserved"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#93558 …}
    #channels: Doctrine\ORM\PersistentCollection {#93551 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#93556 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#93553 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#93566 …}
    -apiLastModifiedAt: DateTime @1754517600 {#93539
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1618524000 {#93575
      date: 2021-04-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @1126648800 {#93574
      date: 2005-09-14 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: DateTime @1616626800 {#93568
      date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00)
    }
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 104
    -documents: Doctrine\ORM\PersistentCollection {#93564 …}
    -favorites: Doctrine\ORM\PersistentCollection {#93562 …}
  }
  +label: "Most Recent"
  +icon: "check-xs"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 104.0 MiB 0.28 ms
Input props 
[
  "product" => App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  "showFullLabel" => "true"
]
Attributes 
[
  "showFullLabel" => "true"
]
Component 
App\Twig\Components\ProductState {#113568
  +product: App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 104.0 MiB 0.95 ms
Input props 
[
  "product" => App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
]
Attributes 
[]
Component 
App\Twig\Components\ProductMostRecent {#113595
  +product: App\Entity\Product\Product {#7310
    #id: 9058
    #code: "IEEE00001536"
    #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
    #variants: Doctrine\ORM\PersistentCollection {#7743 …}
    #options: Doctrine\ORM\PersistentCollection {#7915 …}
    #associations: Doctrine\ORM\PersistentCollection {#7899 …}
    #createdAt: DateTime @1751037936 {#7274
      date: 2025-06-27 17:25:36.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#7322
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#7921 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#7920
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#7310}
        #id: 31241
        #name: "IEEE 1050:1996"
        #slug: "ieee-1050-1996-ieee00001536-240710"
        #description: """
          Revision Standard - Superseded.<br />\n
          Information about grounding methods for generating station instrumentation and control (I&amp;C) equipment is provided. The identification of I&amp;C equipment methods to achieve both a suitable level of protection for personnel and equipment is included, as well as suitable noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented.<br />\n
          \t\t\t\t<br />\n
          This application guide was developed to identify instrumentation and control (I&amp;C) equipment grounding methods to achieve both a suitable level of protection for personnel and equipment, and to provide suitable electric noise immunity for signal ground references in generating stations. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Special applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) have not been considered. This guide is intended to provide information about grounding methods for generating station I&amp;C equipment. Grounding design is normally based on the concept of two separate grounding systems the equipment ground and the signal reference ground. The grounding of instrument chassis, racks, cable sheaths, or cable shields and signal pairs requires special care to ensure that personnel working on equipment are adequately protected against electrical shock hazards during both normal and abnormal conditions, as well as to ensure that interference signals are not inadvertently coupled into signal circuits. The basic theory and guidelines to be understood before designing I&amp;C grounding are presented in clause . Clause provides guidance for grounding of equipment associated with generating station I&amp;C systems and presents various approaches to providing a signal ground system. Clause presents accepted practices in grounding the shields of I&amp;C cables, while clause covers the testing of I&amp;C grounding systems.<br />\n
          The typical environment in a generating station provides many sources of electrical noise, such as the switching of large inductive loads, high fault currents, static switching, and high-energy, high-frequency transients associated with switching at the generator or transmission voltage level. The increasing use of solid-state equipment, computer- or microprocessor-based control, and signal multiplexing systems in these applications introduces a number of specific concerns with respect to electrical noise control. This guide discusses methods for the grounding of instrumentation and control equipment and their associated circuits in generating stations. It is intended to provide guidance for the design of grounding systems for instrumentation and control equipment specific to the generating station. The low-level electrical signals transmitted from various instrumentation and control equipment in a generating station through long cables may undergo signal distortion as they travel to the receiving end. This distortion is typically caused by noise pickup either at the signal source or along the cable run. The level of noise on the received signal can cause errors in measurement and control functions (and in extreme cases, damage to equipment), which in turn may result in costly unit downtime. The use of proper grounding along with proper shielding techniques can solve a large percentage of noise problems. It should be recognized that there are numerous accepted grounding techniques and that the actual installation of a ground system should be made in consultation with instrumentation and control equipment manufacturers. The grounding methods in this guide are intended to minimize degradation of instrumentation and control signals in generating stations. By contrast, the station grounding system is mainly oriented toward meeting the requirements of various safety codes that aim to establish a grounding system that will provide a low-impedance path to ground. This low-impedance path helps to ensure that high voltages are not developed on equipment or structures as a consequence of lightning surges, electrical faults, circulating currents, or static charges. This guide is complementary to IEEE Std 665-1995 .
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
    #channels: Doctrine\ORM\PersistentCollection {#7627 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#7644 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
    -apiLastModifiedAt: DateTime @1754517600 {#7317
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1692136800 {#7292
      date: 2023-08-16 00:00:00.0 Europe/Paris (+02:00)
    }
    -author: ""
    -publishedAt: DateTime @842911200 {#7318
      date: 1996-09-17 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 100
    -documents: Doctrine\ORM\PersistentCollection {#7464 …}
    -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductState App\Twig\Components\ProductState 104.0 MiB 0.25 ms
Input props 
[
  "product" => App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
  "showFullLabel" => "true"
]
Attributes 
[
  "showFullLabel" => "true"
]
Component 
App\Twig\Components\ProductState {#113659
  +product: App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 104.0 MiB 0.98 ms
Input props 
[
  "product" => App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
]
Attributes 
[]
Component 
App\Twig\Components\ProductMostRecent {#113686
  +product: App\Entity\Product\Product {#106707
    #id: 9057
    #code: "IEEE00001535"
    #attributes: Doctrine\ORM\PersistentCollection {#106690 …}
    #variants: Doctrine\ORM\PersistentCollection {#106687 …}
    #options: Doctrine\ORM\PersistentCollection {#106683 …}
    #associations: Doctrine\ORM\PersistentCollection {#106685 …}
    #createdAt: DateTime @1751037935 {#106715
      date: 2025-06-27 17:25:35.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754607611 {#106688
      date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#106701 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#106740
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#106707}
        #id: 31237
        #name: "IEEE 1050:1989"
        #slug: "ieee-1050-1989-ieee00001535-240709"
        #description: """
          New IEEE Standard - Superseded.<br />\n
          Superseded by 1050-1996. Guidance for the design of grounding systems for instrumentation and control equipment specific to large central generating stations is provided. The goal is to achieve both a suitable level of protection for personnel and equipment and suitable electric noise immunity for signal ground references. Requirements for the grounding of systems associated with the interconnection of the station to adjacent substations are considered, since these are a large source of electrical noise. Both ideal theoretical methods and accepted practices in the electric utility industry are presented. Applications relating to advanced energy storage and conversion technologies (photovoltaics, fuel cells, etc.) are not considered. .<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Guide for Instrumentation and Control Equipment Grounding in Generating Stations"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#106698 …}
    #channels: Doctrine\ORM\PersistentCollection {#106692 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#106696 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#106694 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#106708 …}
    -apiLastModifiedAt: DateTime @1754517600 {#106675
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1578006000 {#106714
      date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @623026800 {#106713
      date: 1989-09-29 00:00:00.0 Europe/Paris (+01:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "1050"
    -bookCollection: ""
    -pageCount: 80
    -documents: Doctrine\ORM\PersistentCollection {#106705 …}
    -favorites: Doctrine\ORM\PersistentCollection {#106703 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductCard App\Twig\Components\ProductCard 126.0 MiB 13.02 ms
Input props 
[
  "product" => App\Entity\Product\Product {#135160
    #id: 8347
    #code: "IEEE00000315"
    #attributes: Doctrine\ORM\PersistentCollection {#135184 …}
    #variants: Doctrine\ORM\PersistentCollection {#135182 …}
    #options: Doctrine\ORM\PersistentCollection {#135177 …}
    #associations: Doctrine\ORM\PersistentCollection {#135180 …}
    #createdAt: DateTime @1751037341 {#135173
      date: 2025-06-27 17:15:41.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#135166
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#135195 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#135284
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#135160}
        #id: 28397
        #name: "IEEE 142:1991"
        #slug: "ieee-142-1991-ieee00000315-239999"
        #description: """
          Revision Standard - Superseded.<br />\n
          Superseded by IEEE Std 142-2007 (Green Book). This IEEE Standars product is part of the Color Books family. The problems of system grounding, that is, connection to ground of neutral, of the corner of the delta, or of the midtap of one phase, are covered.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#135193 …}
    #channels: Doctrine\ORM\PersistentCollection {#135186 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#135190 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#135188 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#135200 …}
    -apiLastModifiedAt: DateTime @1754517600 {#135159
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1704927600 {#135208
      date: 2024-01-11 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @709164000 {#135179
      date: 1992-06-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "142"
    -bookCollection: ""
    -pageCount: 240
    -documents: Doctrine\ORM\PersistentCollection {#135199 …}
    -favorites: Doctrine\ORM\PersistentCollection {#135197 …}
  }
  "layout" => "vertical"
  "showPrice" => true
  "showStatusBadges" => true
  "additionalClasses" => "product__teaser--with-grey-border"
  "hasStretchedLink" => true
  "hoverType" => "shadow"
  "linkLabel" => "See more"
]
Attributes 
[]
Component 
App\Twig\Components\ProductCard {#135252
  +product: App\Entity\Product\Product {#135160
    #id: 8347
    #code: "IEEE00000315"
    #attributes: Doctrine\ORM\PersistentCollection {#135184 …}
    #variants: Doctrine\ORM\PersistentCollection {#135182 …}
    #options: Doctrine\ORM\PersistentCollection {#135177 …}
    #associations: Doctrine\ORM\PersistentCollection {#135180 …}
    #createdAt: DateTime @1751037341 {#135173
      date: 2025-06-27 17:15:41.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#135166
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#135195 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#135284
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#135160}
        #id: 28397
        #name: "IEEE 142:1991"
        #slug: "ieee-142-1991-ieee00000315-239999"
        #description: """
          Revision Standard - Superseded.<br />\n
          Superseded by IEEE Std 142-2007 (Green Book). This IEEE Standars product is part of the Color Books family. The problems of system grounding, that is, connection to ground of neutral, of the corner of the delta, or of the midtap of one phase, are covered.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#135193 …}
    #channels: Doctrine\ORM\PersistentCollection {#135186 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#135190 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#135188 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#135200 …}
    -apiLastModifiedAt: DateTime @1754517600 {#135159
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1704927600 {#135208
      date: 2024-01-11 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @709164000 {#135179
      date: 1992-06-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "142"
    -bookCollection: ""
    -pageCount: 240
    -documents: Doctrine\ORM\PersistentCollection {#135199 …}
    -favorites: Doctrine\ORM\PersistentCollection {#135197 …}
  }
  +layout: "vertical"
  +showPrice: true
  +showStatusBadges: true
  +additionalClasses: "product__teaser--with-grey-border"
  +linkLabel: "See more"
  +imageFilter: "product_thumbnail_teaser"
  +hasStretchedLink: true
  +backgroundColor: "white"
  +hoverType: "shadow"
}
ProductState App\Twig\Components\ProductState 126.0 MiB 0.30 ms
Input props 
[
  "product" => App\Entity\Product\Product {#135160
    #id: 8347
    #code: "IEEE00000315"
    #attributes: Doctrine\ORM\PersistentCollection {#135184 …}
    #variants: Doctrine\ORM\PersistentCollection {#135182 …}
    #options: Doctrine\ORM\PersistentCollection {#135177 …}
    #associations: Doctrine\ORM\PersistentCollection {#135180 …}
    #createdAt: DateTime @1751037341 {#135173
      date: 2025-06-27 17:15:41.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#135166
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#135195 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#135284
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#135160}
        #id: 28397
        #name: "IEEE 142:1991"
        #slug: "ieee-142-1991-ieee00000315-239999"
        #description: """
          Revision Standard - Superseded.<br />\n
          Superseded by IEEE Std 142-2007 (Green Book). This IEEE Standars product is part of the Color Books family. The problems of system grounding, that is, connection to ground of neutral, of the corner of the delta, or of the midtap of one phase, are covered.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#135193 …}
    #channels: Doctrine\ORM\PersistentCollection {#135186 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#135190 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#135188 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#135200 …}
    -apiLastModifiedAt: DateTime @1754517600 {#135159
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1704927600 {#135208
      date: 2024-01-11 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @709164000 {#135179
      date: 1992-06-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "142"
    -bookCollection: ""
    -pageCount: 240
    -documents: Doctrine\ORM\PersistentCollection {#135199 …}
    -favorites: Doctrine\ORM\PersistentCollection {#135197 …}
  }
]
Attributes 
[
  "showFullLabel" => false
]
Component 
App\Twig\Components\ProductState {#135288
  +product: App\Entity\Product\Product {#135160
    #id: 8347
    #code: "IEEE00000315"
    #attributes: Doctrine\ORM\PersistentCollection {#135184 …}
    #variants: Doctrine\ORM\PersistentCollection {#135182 …}
    #options: Doctrine\ORM\PersistentCollection {#135177 …}
    #associations: Doctrine\ORM\PersistentCollection {#135180 …}
    #createdAt: DateTime @1751037341 {#135173
      date: 2025-06-27 17:15:41.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#135166
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#135195 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#135284
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#135160}
        #id: 28397
        #name: "IEEE 142:1991"
        #slug: "ieee-142-1991-ieee00000315-239999"
        #description: """
          Revision Standard - Superseded.<br />\n
          Superseded by IEEE Std 142-2007 (Green Book). This IEEE Standars product is part of the Color Books family. The problems of system grounding, that is, connection to ground of neutral, of the corner of the delta, or of the midtap of one phase, are covered.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#135193 …}
    #channels: Doctrine\ORM\PersistentCollection {#135186 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#135190 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#135188 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#135200 …}
    -apiLastModifiedAt: DateTime @1754517600 {#135159
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1704927600 {#135208
      date: 2024-01-11 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @709164000 {#135179
      date: 1992-06-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "142"
    -bookCollection: ""
    -pageCount: 240
    -documents: Doctrine\ORM\PersistentCollection {#135199 …}
    -favorites: Doctrine\ORM\PersistentCollection {#135197 …}
  }
  +appearance: "state-suspended"
  +labels: [
    "Superseded"
  ]
  -stateAttributeCode: "state"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}
ProductMostRecent App\Twig\Components\ProductMostRecent 126.0 MiB 1.17 ms
Input props 
[
  "product" => App\Entity\Product\Product {#135160
    #id: 8347
    #code: "IEEE00000315"
    #attributes: Doctrine\ORM\PersistentCollection {#135184 …}
    #variants: Doctrine\ORM\PersistentCollection {#135182 …}
    #options: Doctrine\ORM\PersistentCollection {#135177 …}
    #associations: Doctrine\ORM\PersistentCollection {#135180 …}
    #createdAt: DateTime @1751037341 {#135173
      date: 2025-06-27 17:15:41.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#135166
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#135195 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#135284
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#135160}
        #id: 28397
        #name: "IEEE 142:1991"
        #slug: "ieee-142-1991-ieee00000315-239999"
        #description: """
          Revision Standard - Superseded.<br />\n
          Superseded by IEEE Std 142-2007 (Green Book). This IEEE Standars product is part of the Color Books family. The problems of system grounding, that is, connection to ground of neutral, of the corner of the delta, or of the midtap of one phase, are covered.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#135193 …}
    #channels: Doctrine\ORM\PersistentCollection {#135186 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#135190 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#135188 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#135200 …}
    -apiLastModifiedAt: DateTime @1754517600 {#135159
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1704927600 {#135208
      date: 2024-01-11 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @709164000 {#135179
      date: 1992-06-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "142"
    -bookCollection: ""
    -pageCount: 240
    -documents: Doctrine\ORM\PersistentCollection {#135199 …}
    -favorites: Doctrine\ORM\PersistentCollection {#135197 …}
  }
]
Attributes 
[]
Component 
App\Twig\Components\ProductMostRecent {#135366
  +product: App\Entity\Product\Product {#135160
    #id: 8347
    #code: "IEEE00000315"
    #attributes: Doctrine\ORM\PersistentCollection {#135184 …}
    #variants: Doctrine\ORM\PersistentCollection {#135182 …}
    #options: Doctrine\ORM\PersistentCollection {#135177 …}
    #associations: Doctrine\ORM\PersistentCollection {#135180 …}
    #createdAt: DateTime @1751037341 {#135173
      date: 2025-06-27 17:15:41.0 Europe/Paris (+02:00)
    }
    #updatedAt: DateTime @1754606304 {#135166
      date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
    }
    #enabled: true
    #translations: Doctrine\ORM\PersistentCollection {#135195 …}
    #translationsCache: [
      "en_US" => App\Entity\Product\ProductTranslation {#135284
        #locale: "en_US"
        #translatable: App\Entity\Product\Product {#135160}
        #id: 28397
        #name: "IEEE 142:1991"
        #slug: "ieee-142-1991-ieee00000315-239999"
        #description: """
          Revision Standard - Superseded.<br />\n
          Superseded by IEEE Std 142-2007 (Green Book). This IEEE Standars product is part of the Color Books family. The problems of system grounding, that is, connection to ground of neutral, of the corner of the delta, or of the midtap of one phase, are covered.<br />\n
          \t\t\t\t
          """
        #metaKeywords: null
        #metaDescription: null
        #shortDescription: "IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems"
        -notes: "Superseded"
      }
    ]
    #currentLocale: "en_US"
    #currentTranslation: null
    #fallbackLocale: "en_US"
    #variantSelectionMethod: "match"
    #productTaxons: Doctrine\ORM\PersistentCollection {#135193 …}
    #channels: Doctrine\ORM\PersistentCollection {#135186 …}
    #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
    #reviews: Doctrine\ORM\PersistentCollection {#135190 …}
    #averageRating: 0.0
    #images: Doctrine\ORM\PersistentCollection {#135188 …}
    -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
    -subscriptionCollections: Doctrine\ORM\PersistentCollection {#135200 …}
    -apiLastModifiedAt: DateTime @1754517600 {#135159
      date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
    }
    -lastUpdatedAt: DateTime @1704927600 {#135208
      date: 2024-01-11 00:00:00.0 Europe/Paris (+01:00)
    }
    -author: ""
    -publishedAt: DateTime @709164000 {#135179
      date: 1992-06-22 00:00:00.0 Europe/Paris (+02:00)
    }
    -releasedAt: null
    -confirmedAt: null
    -canceledAt: null
    -edition: null
    -coreDocument: "142"
    -bookCollection: ""
    -pageCount: 240
    -documents: Doctrine\ORM\PersistentCollection {#135199 …}
    -favorites: Doctrine\ORM\PersistentCollection {#135197 …}
  }
  +label: "Historical"
  +icon: "historical"
  -mostRecentAttributeCode: "most_recent"
  -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}
}