IEC 62271-202:2022/COR1:2023
(Corrigendum)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
General Information
- Abstract
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.
- 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
- 24-Aug-2023
- Completion Date
- 28-Sep-2023
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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
Relations
- Effective Date
- 05-Sep-2023
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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
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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.
IEC 62271-202:2022/COR1:2023 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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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