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IEC 62271-202:2014

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

High-voltage switchgear and controlgear - Part 202: High-voltage/ low-voltage prefabricated substation
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

22-06-2022

Published date

27-03-2014

IEC 62271-202:2014 specifies the service conditions, rated characteristics, general structural requirements and test methods of high voltage/low voltage or low voltage/high voltage prefabricated substations, which are cable-connected, to be operated from inside (walk-in type) or outside (non-walk-in type) for alternating current of rated voltages above 1 kV and up to and including 52 kV on the high voltage side, and for one or more transformers for service frequencies up to and including 60 Hz for outdoor installation at locations with public accessibility and where protection of personnel is provided. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) regarding temperature-rise test an alternative method for liquid filled transformers is (re)introduced and the temperature-rise test method for dry-type transformers is specified more precisely;
b) testing procedure for short time and peak withstand current tests are specified more precisely;
c) assessment of electromagnetic fields is considered including a type test (optional) according IEC/TR 62271-208:2009;
d) influence of the product on the environment is considered (Clause 12);
e) internal arc test requirements have been adapted to IEC 62271-200:2011 and requirements for the assessment of pressure relief volumes below the floor / ground has been assigned;
f) the method for defining the load factor in an enclosure for liquid filled transformers is extended with different temperature rises for the transformer outside the enclosure (Annex DD);
g) for the calculation of the load factor of dry-type transformers in an enclosure the insulation systems according to IEC 60076-1:2011, Tables B.1 and B.2 are worked out in detail.

This publication is to be read in conjunction with IEC 62271-201:2007. The contents of the corrigendum of April 2015 have been included in this copy.

Committee
TC 17/SC 17C
DevelopmentNote
Supersedes IEC 61330. (02/2007) To be read in conjunction with IEC 62271-1. Stability date: 2021. (04/2014)
DocumentType
Standard
Pages
190
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

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IEC GUIDE 117:2010 Electrotechnical equipment - Temperatures of touchable hot surfaces
IEC 60050-441:1984 International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
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IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit
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IEC TR 62271-300:2006 High-voltage switchgear and controlgear - Part 300: Seismic qualification of alternating current circuit-breakers
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ISO 2081:2008 Metallic and other inorganic coatings Electroplated coatings of zinc with supplementary treatments on iron or steel
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IEC TS 62271-304:2008 High-voltage switchgear and controlgear - Part 304: Design classes for indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and includuing 52 kV to be used in severe climatic conditions
ISO 10546:1993 Chemical conversion coatings Rinsed and non-rinsed chromate conversion coatings on aluminium and aluminium alloys
IEC 60076-12:2008 Power transformers - Part 12: Loading guide for dry-type power transformers
IEC 60721-2-2:2012 Classification of environmental conditions - Part 2-2: Environmental conditions appearing in nature - Precipitation and wind
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EN 206-1:2000/A2:2005 CONCRETE - PART 1: SPECIFICATION, PERFORMANCE, PRODUCTION AND CONFORMITY
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IEC TR 62271-208:2009 High-voltage switchgear and controlgear - Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations
IEC 61439-1:2011 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
IEC 60721-2-4:1987+AMD1:1988 CSV Classification of environmental conditions - Part 2-4: Environmental conditions appearing in nature - Solar radiation and temperature
ISO 1460:1992 Metallic coatings Hot dip galvanized coatings on ferrous materials Gravimetric determination of the mass per unit area
IEC 60059:1999+AMD1:2009 CSV IEC standard current ratings
IEC 61180-1:1992 High-voltage test techniques for low voltage equipment - Part 1: Definitions, test and procedure requirements
IEC 60076-13:2006 Power transformers - Part 13: Self-protected liquid-filled transformers
ISO 2409:2013 Paints and varnishes Cross-cut test
IEC TS 60815-1:2008 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles
IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
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