Corrigendum 1 - High-voltage switchgear and controlgear - Part 202: AC prefabricated substations for rated voltages above 1 kV and up to and including 52 kV

IEC 62271-202:2022 specifies the service conditions, rated characteristics, general structural requirements and test methods of enclosed high-voltage prefabricated substations. These prefabricated substations are cable-connected to AC high-voltage networks with an operating voltage up to and including 52 kV and power frequencies up to and including 60 Hz. They can be manually operated from inside (walk-in type) or from outside (non-walk-in type). They are designed for outdoor installation at locations with public accessibility and where protection of personnel is provided.
This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
the whole document contents and structure are reviewed with due consideration of IEC 62271-1:2017;
modification of the title and scope to include high-voltage switchgear prefabricated substations;
inclusion of CEADS as a possible component of MV/LV prefabricated substation;
in 7.2.101, the possible influence of surrounding elements on the dielectric performance of high-voltage components as high-voltage switchgear and controlgear and high-voltage interconnections non-metal-enclosed or without earthed screen are now considered;
new informative Annex G with testing procedure to evaluate the impact of solar radiation in temperatures inside the enclosure and how to apply it;
new informative Annex H for appropriate consideration of installation conditions of electronic equipment;
the rated power of a prefabricated substation is now defined as a three-parameter rated value. See 5.101.1;
minimum dimensions for access doors to the prefabricated substation in 6.104.4 and for free height of operation aisle in 6.105.3 have been introduced;
continuous current (temperature rise) test methods have been revised/clarified where necessary;
Figure D.1, which shows the mineral-oil-immersed power transformer load factor inside the enclosure, has been corrected.

Corrigendum 1 - Appareillage à haute tension - Partie 202: Postes préfabriqués pour courant alternatif de tensions assignées supérieures à 1 kV et inférieures ou égales à 52 kV

L'IEC 62271-202:2022 spécifie les conditions de service, les caractéristiques assignées, les exigences structurelles générales et les méthodes d'essai applicables aux postes préfabriqués haute tension sous enveloppe. Ces postes préfabriqués sont connectés par câble à des réseaux haute tension à courant alternatif avec une tension de service inférieure ou égale à 52 kV et des fréquences de puissance inférieures ou égales à 60 Hz. Ces postes peuvent être manœuvrés de l'intérieur (à aire de manœuvre) ou de l'extérieur (sans aire de manœuvre). Ils sont conçus pour une installation extérieure en des emplacements accessibles au public et ils assurent la protection du personnel.
Cette troisième édition annule et remplace la deuxième édition, parue en 2014. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
révision du contenu et de la structure de l'ensemble du document avec prise en considération toute particulière de l’IEC 62271-1:2017;
modification du titre et du domaine d’application afin d’inclure les postes préfabriqués de connexion haute tension;
inclusion d’un ECEPD comme composante potentielle d’un poste préfabriqué MT/BT;
au paragraphe 7.2.101, prise en considération nouvelle de l’influence potentielle des éléments environnants sur les performances diélectriques des composants à haute tension comme les appareillages à haute tension et les interconnexions haute tension sous enveloppe non métallique ou sans écran mis à la terre;
nouvelle Annex G informative avec procédure d'essai destinée à évaluer l’effet du rayonnement solaire sur les températures à l’intérieur de l’enveloppe et comment appliquer cette procédure;
nouvelle Annex H informative pour la prise en considération appropriée des conditions d’installation du matériel électronique;
la puissance assignée d’un poste préfabriqué est maintenant définie comme une valeur assignée à trois paramètres. Voir le paragraphe 5.101.1:
introduction de dimensions minimales pour les portes d’accès au poste préfabriqué (6.104.4) et pour la hauteur libre du couloir de manœuvre (6.105.3);
révision/clarification, lorsque cela est nécessaire, des méthodes d'essai (d’échauffement) au courant permanent;
correction de la Figure D.1, qui décrit le facteur de charge du transformateur de puissance immergé dans l’huile minérale à l’intérieur de l’enveloppe.

General Information

Status
Published
Publication Date
23-Aug-2023
Technical Committee
SC 17C - Assemblies
Drafting Committee
MT 29 - TC 17/SC 17C/MT 29
Current Stage
PPUB - Publication issued
Start Date
28-Sep-2023
Completion Date
24-Aug-2023

Relations

Effective Date
05-Sep-2023
Standard

IEC 62271-202:2022/COR1:2023 - Corrigendum 1 - High-voltage switchgear and controlgear - Part 202: AC prefabricated substations for rated voltages above 1 kV and up to and including 52 kV Released:8/24/2023

English and French language
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Frequently Asked Questions

IEC 62271-202:2022/COR1:2023 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Corrigendum 1 - High-voltage switchgear and controlgear - Part 202: AC prefabricated substations for rated voltages above 1 kV and up to and including 52 kV". This standard covers: IEC 62271-202:2022 specifies the service conditions, rated characteristics, general structural requirements and test methods of enclosed high-voltage prefabricated substations. These prefabricated substations are cable-connected to AC high-voltage networks with an operating voltage up to and including 52 kV and power frequencies up to and including 60 Hz. They can be manually operated from inside (walk-in type) or from outside (non-walk-in type). They are designed for outdoor installation at locations with public accessibility and where protection of personnel is provided. This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: the whole document contents and structure are reviewed with due consideration of IEC 62271-1:2017; modification of the title and scope to include high-voltage switchgear prefabricated substations; inclusion of CEADS as a possible component of MV/LV prefabricated substation; in 7.2.101, the possible influence of surrounding elements on the dielectric performance of high-voltage components as high-voltage switchgear and controlgear and high-voltage interconnections non-metal-enclosed or without earthed screen are now considered; new informative Annex G with testing procedure to evaluate the impact of solar radiation in temperatures inside the enclosure and how to apply it; new informative Annex H for appropriate consideration of installation conditions of electronic equipment; the rated power of a prefabricated substation is now defined as a three-parameter rated value. See 5.101.1; minimum dimensions for access doors to the prefabricated substation in 6.104.4 and for free height of operation aisle in 6.105.3 have been introduced; continuous current (temperature rise) test methods have been revised/clarified where necessary; Figure D.1, which shows the mineral-oil-immersed power transformer load factor inside the enclosure, has been corrected.

IEC 62271-202:2022 specifies the service conditions, rated characteristics, general structural requirements and test methods of enclosed high-voltage prefabricated substations. These prefabricated substations are cable-connected to AC high-voltage networks with an operating voltage up to and including 52 kV and power frequencies up to and including 60 Hz. They can be manually operated from inside (walk-in type) or from outside (non-walk-in type). They are designed for outdoor installation at locations with public accessibility and where protection of personnel is provided. This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: the whole document contents and structure are reviewed with due consideration of IEC 62271-1:2017; modification of the title and scope to include high-voltage switchgear prefabricated substations; inclusion of CEADS as a possible component of MV/LV prefabricated substation; in 7.2.101, the possible influence of surrounding elements on the dielectric performance of high-voltage components as high-voltage switchgear and controlgear and high-voltage interconnections non-metal-enclosed or without earthed screen are now considered; new informative Annex G with testing procedure to evaluate the impact of solar radiation in temperatures inside the enclosure and how to apply it; new informative Annex H for appropriate consideration of installation conditions of electronic equipment; the rated power of a prefabricated substation is now defined as a three-parameter rated value. See 5.101.1; minimum dimensions for access doors to the prefabricated substation in 6.104.4 and for free height of operation aisle in 6.105.3 have been introduced; continuous current (temperature rise) test methods have been revised/clarified where necessary; Figure D.1, which shows the mineral-oil-immersed power transformer load factor inside the enclosure, has been corrected.

IEC 62271-202:2022/COR1:2023 is classified under the following ICS (International Classification for Standards) categories: 29.130.10 - High voltage switchgear and controlgear. The ICS classification helps identify the subject area and facilitates finding related standards.

IEC 62271-202:2022/COR1:2023 has the following relationships with other standards: It is inter standard links to IEC 62271-202:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

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Standards Content (Sample)


 IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
IEC 62271-202 IEC 62271-202
Edition 3.0  2022-06 Édition 3.0  2022-06

High-voltage switchgear and controlgear – Appareillage à haute tension –

Part 202: AC prefabricated substations for Partie 202: Postes préfabriqués pour courant
rated voltages above 1 kV and up to alternatif de tensions assignées supérieures
and including 52 kV à 1 kV et inférieures ou égales à 52 kV

CO RRI G E NDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

Figure D.1 – Mineral-oil-immersed power transformer
...

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IEC 62271-202:2022/COR1:2023は、1 kVを超え52 kV以下の定格電圧の交流プレファブリケイテッド変電所に関する標準であり、その範囲は非常に広範囲に及びます。この標準は、封入型高電圧プレファブリケイテッド変電所のサービス条件、定格特性、一般的な構造要件および試験方法を詳しく規定しています。これにより、業界は高電圧ネットワークに対して80 kVを含むきわめて信頼性の高いソリューションを提供することが可能になります。 強みとして、この文書は2014年に発行された前版を技術的に改訂しており、それに伴う重要な変更点が数多く含まれています。具体例として、IEC 62271-1:2017を考慮した文書全体の見直しや、タイトル及び範囲の修正が挙げられます。特に、CEADSをMV/LVプレファブリケイテッド変電所のコンポーネントとして含めた点は、実際の運用において柔軟性を向上させる要素です。 さらに、周囲要素の影響についても、新たに考慮されるようになったことで、高電圧機器の絶縁性能に対する理解が深化しました。新しい附属書Gでは、エンクロージャ内の温度に対する太陽放射の影響を評価する試験手順が示されており、エンクロージャ内における熱管理の重要性が強調されています。 また、電子機器の設置条件についても新しい附属書Hが提供されており、これにより設計者や技術者は設置における適切な考慮を行うことができます。プレファブリケイテッド変電所の定格電力が三次元の定格値として定義された点も、より具体的で役立つ情報を提供しています。アクセスドアの最小寸法や操作通路の自由高さの導入により、使用の安全性と作業の利便性が向上しました。 このように、IEC 62271-202:2022/COR1:2023は、高電圧スイッチギアおよび制御装置の技術基準として、現代の要求に応じた進化を遂げた重要な文書であり、その関連性は今後の高電圧システムの管理と実施において極めて高いと言えます。

The IEC 62271-202:2022/COR1:2023 standard serves as a comprehensive guide for high-voltage switchgear and controlgear, specifically addressing the requirements for AC prefabricated substations designed for rated voltages exceeding 1 kV and up to 52 kV. This document delineates the service conditions, rated characteristics, structural mandates, and testing methodologies pertinent to enclosed high-voltage prefabricated substations. One of the primary strengths of this standard is its thorough revision from the previous edition, ensuring that all contents and structural requirements align with the current IEC 62271-1:2017 guidelines. The modification of the title and scope is particularly noteworthy, as it broadens the applicability of the standard to high-voltage switchgear prefabricated substations, thereby enhancing its relevance in contemporary electrical infrastructure. The inclusion of CEADS (Compact Energy Automobile Distribution System) as a potential component of MV/LV prefabricated substations reflects the standard's responsiveness to evolving technology and market needs. Furthermore, the new informative Annex G, which outlines testing procedures to assess the impact of solar radiation on internal temperatures within enclosures, positions the standard as a forward-thinking document that addresses real-world challenges faced in outdoor installations. Addressing technical nuances, the standard now considers the influence of surrounding elements on the dielectric performance of high-voltage components. This shift is critical for ensuring reliable operation and safety in diverse environmental contexts. Additionally, the specification of rated power as a three-parameter value simplifies the analysis and design processes, thereby enhancing clarity and operational effectiveness. The introduction of minimum dimension requirements for access doors and operation aisles ensures that safety and usability are prioritized, a crucial factor for installations at publicly accessible locations. Moreover, revisions to continuous current (temperature rise) test methodologies enhance the standard’s technical robustness, ensuring thorough evaluation of equipment performance under standard operating conditions. Overall, IEC 62271-202:2022/COR1:2023 stands out as a vital standard in the realm of high-voltage switchgear excellence, addressing contemporary challenges, incorporating clear structural guidelines, and ensuring safety through careful consideration of operational parameters. Its relevance is underscored by its comprehensive approach to defining and regulating the complexities of prefabricated high-voltage substations.

IEC 62271-202:2022/COR1:2023 표준은 1 kV 이상의 정격 전압을 가진 AC 프리패브리케이티드 변전소에 대해 규정하고 있으며, 52 kV까지의 전압 범위와 최대 60 Hz의 전력 주파수에서 작동하는 케이블 연결 고전압 네트워크에 적합합니다. 이 표준은 높은 전압을 다루는 전력 시스템에서 안전하고 신뢰성 있는 운용을 위한 필수적인 지침을 제공합니다. 이 표준의 강점 중 하나는 고전압 프리패브리케이티드 변전소의 구조적 요구사항 및 시험 방법에 대한 포괄적인 내용을 포함하고 있다는 점입니다. 2023년에 개정된 이 표준은 2014년에 발표된 이전 버전을 대체하여 기술적으로 개선된 내용을 담고 있습니다. 특히, IEC 62271-1:2017을 고려한 문서 구조의 전반적인 검토와 고전압 스위치기어와 변전소의 명확한 정의가 특징입니다. 또한, 태양 복사의 영향과 온도 조건에 대한 새로운 시험 절차를 포함하여, 전자 장비 설치 조건과 관련된 제안도 추가하여 실용성을 높였습니다. 이러한 점은 고전압 변전소의 설치 및 운영에 있어 환경적 요인에 대한 적절한 고려를 가능하게 하여, 품질과 안전성을 더욱 높이는 데 기여합니다. 접근 문을 포함한 최소 치수와 운영 통로의 확보 등을 명확히 함으로써 사용자 친화적이며 사용자가 편리하게 접근할 수 있도록 하였습니다. 이러한 구조적 및 기능적 요구사항 때문에 IEC 62271-202:2022/COR1:2023 표준은 고전압 장비의 설계 및 운영에 있어 매우 중요한 기준으로 자리잡고 있습니다. 결론적으로, IEC 62271-202:2022/COR1:2023 표준은 고전압 스위치기어와 변전소 관련 현장 적용에 있어 필수적이며, 이를 준수함으로써 설비의 신뢰성과 안전성을 확보할 수 있습니다. 이 표준의 지속적인 개선은 전력 산업의 발전과 더불어 필수적이며, 관련 업계의 필수 지침서로 자리매김할 것입니다.