EN 62271-202:2007

SLOVENSKI STANDARD
01-november-2007
9LVRNRQDSHWRVQHVWLNDOQHQDSDUDYHGHO0RQWDåQDHOHNWULþQDSRVWDMD,(&

High-voltage switchgear ands controlgear -- Part 202: High voltage/low voltage
prefabricated substation (IEC 62271-202:2006)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 202: Fabrikfertige Stationen für
Hochspannung/Niederspannung (IEC 62271-202:2006)
Appareillage a haute tension -- Partie 202: Postes préfabriqués haute tension/basse
tension (IEC 62271-202:2006)
Ta slovenski standard je istoveten z: EN 62271-202:2007
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62271-202
NORME EUROPÉENNE
February 2007
EUROPÄISCHE NORM
ICS 29.130.10 Supersedes EN 61330:1996

English version
High-voltage switchgear and controlgear -
Part 202: High voltage/low voltage prefabricated substation
(IEC 62271-202:2006)
Appareillage à haute tension -  Hochspannungs-Schaltgeräte
Partie 202: Postes préfabriqués und -Schaltanlagen -
haute tension/basse tension Teil 202: Fabrikfertige Stationen
(CEI 62271-202:2006) für Hochspannung/Niederspannung
(IEC 62271-202:2006)
This European Standard was approved by CENELEC on 2006-09-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62271-202:2007 E
Foreword
The text of document 17C/371/FDIS, future edition 1 of IEC 62271-202, prepared by SC 17C,
High-voltage switchgear and controlgear assemblies, of IEC TC 17, Switchgear and controlgear, was
submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62271-202 on
2006-09-01.
This European Standard supersedes EN 61330:1996.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-09-01
Annexes ZA and ZB have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62271-202:2006 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60076-5 NOTE  Harmonized as EN 60076-5:2006 (not modified).
IEC 60243-1 NOTE  Harmonized as EN 60243-1:1998 (not modified).
IEC 60947-1 NOTE  Harmonized as EN 60947-1:2004 (not modified).
ISO 3231 NOTE  Harmonized as EN ISO 3231:1997 (not modified).
__________
- 3 - EN 62271-202:2007
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60076 Series Power transformers EN 60076 Series

1) 2)
IEC 60076-1 - Power transformers - EN 60076-1 1997
Part 1: General + A11 1997
+ A12 2002
1) 2)
IEC 60076-2 - Power transformers - EN 60076-2 1997
Part 2: Temperature rise
1) 2)
IEC 60076-5 - Power transformers - EN 60076-5 2006
Part 5: Ability to withstand short circuit

1) 2)
IEC 60076-10 - Power transformers - EN 60076-10 2001
Part 10: Determination of sound levels

1) 2)
IEC 60076-11 - Power transformers - EN 60076-11 2004
Part 11: Dry-type transformers

1) 2)
IEC 60364-4-41 - Low-voltage electrical installations - HD 60364-4-41 2007
Part 4-41: Protection for safety - Protection
against electric shock
1) 2)
IEC 60439-1 - Low-voltage switchgear and controlgear EN 60439-1 1999
assemblies -
Part 1: Type-tested and partially type-tested
assemblies
3) 1)
IEC 60466 - AC insulation-enclosed switchgear and - -
controlgear for rated voltages above 1 kV and
up to and including 38 kV
1) 2)
IEC 60529 - Degrees of protection provided by enclosures EN 60529 1991
(IP Code) + corr. May 1993
1) 2)
IEC 60664-1 - Insulation coordination for equipment within EN 60664-1 2003
low-voltage systems -
Part 1: Principles, requirements and tests

1) 2)
IEC 60694 - Common specifications for high-voltage EN 60694 1996
switchgear and controlgear standards + corr. May 1999

1)
Undated reference.
2)
Valid edition at date of issue.
3)
IEC 60466 is superseded by IEC 62271-201:2006; which is harmonized as EN 62271-201:2006.

Publication Year Title EN/HD Year
1) 2)
IEC 60721-1 - Classification of environmental conditions - EN 60721-1 1995
Part 1: Environmental parameters and their
severities
1) 2)
IEC 60721-2-2 - Classification of environmental conditions - HD 478.2.2 S1 1990
Part 2: Environmental conditions appearing in
nature - Precipitation and wind

1) 2)
IEC 60721-2-4 - Classification of environmental conditions -- HD 478.2.4 S1 1989
Part 2: Environmental conditions appearing in
nature -- Solar radiation and temperature

1)
IEC 60815 - Guide for the selection of insulators in respect - -
of polluted conditions
1)
IEC 60905 - Loading guide for dry-type power - -
transformers
1) 2)
IEC 61166 - High-voltage alternating current circuit- EN 61166 1993
breakers - Guide for seismic qualification of
high-voltage alternating current circuit-
breakers
1) 2)
IEC 61180-1 - High-voltage test techniques for low-voltage EN 61180-1 1994
equipment - Part 1: Definitions, test and
procedure requirements
1)
IEC 61936-1 - Power installations exceeding 1kV a.c. - - -
Part 1: Common rules
1) 2)
IEC 62262 - Degrees of protection provided by enclosures EN 62262 2002
for electrical equipment against external
mechanical impacts (IK code)
1) 2)
IEC 62271-200 - High-voltage switchgear and controlgear - EN 62271-200 2004
Part 200: AC metal-enclosed switchgear and
controlgear for rated voltages above 1 kV and
up to and including 52 kV
1)
ISO/IEC Guide 51 - Safety aspects - Guidelines for their inclusion - -
in standards
1)
ISO 1052 - Steels for general engineering purposes - -

1) 2)
ISO 1182 - Reaction to fire tests for building products - EN ISO 1182 2002
Non-combustibility test
1) 2)
ISO 1716 - Reaction to fire tests for building products - EN ISO 1716 2002
Determination of the heat of combustion

1) 2)
ISO 6508-1 - Metallic materials - Rockwell hardness test - EN ISO 6508-1 2005
Part 1: Test method (scales A, B, C, D, E, F,
G, H, K, N, T)
- 5 - EN 62271-202:2007
Annex ZB
(informative)
A-deviations
A-deviation: National deviation due to regulations, the alteration of which is for the time being outside the
competence of the CENELEC national member.
This European Standard does not fall under any Directive of the EC.
In the relevant CENELEC countries these A-deviations are valid instead of the provisions of the European
Standard until they have been removed.
Clause Deviation
5.1 Belgium
(Wiring rules: Règlement Général sur les Installations Electriques, R.G.I.E. § 71 et 72.02)
The cross-section of conductor shall be not less than 25 mm .
__________
NORME CEI
INTERNATIONALE
IEC
62271-202
INTERNATIONAL
Première édition
STANDARD
First edition
2006-06
Appareillage à haute tension –
Partie 202:
Postes préfabriqués haute tension/
basse tension
High-voltage switchgear and controlgear –
Part 202:
High-voltage/low-voltage prefabricated
substation
 IEC 2006 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
XB
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

62271-202  IEC:2006 – 3 –
CONTENTS
FOREWORD.9
INTRODUCTION.13

1 General .15
1.1 Scope.15
1.2 Normative references .15
1.3 Terms and definitions .19
2 Service conditions .21
2.1 Normal service conditions .21
2.2 Special service conditions .23
3 Requirements for components .25
4 Ratings.25
4.1 Rated voltages .27
4.2 Rated insulation levels .27
4.3 Rated frequency and number of phases .27
4.4 Rated normal currents and temperature rise.27
4.5 Rated short-time withstand currents .29
4.6 Rated peak withstand currents .29
4.7 Rated duration of short circuit .29
4.8 Rated supply voltage of closing and opening devices and auxiliary and
control circuits.29
4.9 Rated supply frequency of closing and opening devices and auxiliary and
control circuits.29
4.10 Rated maximum power and class of enclosure .29
4.10.1 Rated maximum power of the prefabricated substation .29
4.10.2 Rated class of enclosure .31
5 Design and construction .31
5.1 Earthing .31
5.2 Auxiliary equipment .33
5.3 Nameplate.33
5.4 Degree of protection and internal fault.33
5.5 Enclosure .37
5.6 Other provisions .43
5.7 Sound emission.43
5.8 Electromagnetic compatibility (EMC) .43
6 Type tests .43
6.1 General .
...