EN 62271-203:2004

SLOVENSKI SIST EN 62271-203:2004

STANDARD
junij 2004
High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV
ICS 29.130.10 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 62271-203
NORME EUROPÉENNE
EUROPÄISCHE NORM February 2004

ICS 29.130.10 Supersedes EN 60517:1996 + A11:1999

English version
High-voltage switchgear and controlgear
Part 203: Gas-insulated metal-enclosed switchgear
for rated voltages above 52 kV
(IEC 62271-203:2003)
Appareillage à haute tension Hochspannungs-Schaltgeräte und
Partie 203: Appareillage sous enveloppe -Schaltanlagen
métallique à isolation gazeuse Teil 203: Gasisolierte metallgekapselte
de tensions assignées supérieures Schaltanlagen für Bemessungs-
à 52 kV spannungen von 52 kV und darüber
(CEI 62271-203:2003) (IEC 62271-203:2003)

This European Standard was approved by CENELEC on 2004-02-01. 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and 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

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62271-203:2004 E
N 62271-203:2004 - 2 -
Foreword
The text of document 17C/312/FDIS, future edition 1 of IEC 62271-203, 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 62271-203 on
2004-02-01.
This European Standard supersedes EN 60517:1996 + A11:1999.
Significant technical changes with respect to EN 60517:1996 are as follows: deleting not used
technologies, like 3-phase PD measurements, adopting the content of EN 62271-1, Common clauses
(under preparation), and harmonisation with IEEE C37.122. This makes the standard more up to date
to today's products on the world market.
This standard is to be read in conjunction with EN 60694:1996 + A1:2000 + A2:2001, to which it refers
and which is applicable unless otherwise specified. In order to simplify the indication of corresponding
requirements, the same numbering of clauses and subclauses is used as in EN 60694. Amendments
to these clauses and subclauses are given under the same numbering, whilst additional subclauses
are numbered from 101.
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) 2004-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-02-01
Annexes ZA and ZB have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62271-203:2003 was approved by CENELEC as a
European Standard without any modification.
__________
- 3 - EN 62271-203:2004
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
1) 2)
IEC 60044-1 - Instrument transformers EN 60044-1 1999
(mod) Part 1: Current transformers

1) 2)
IEC 60044-2 - Part 2: Inductive voltage transformers EN 60044-2 1999
(mod)
1) 2)
IEC 60068-2-11 - Environmental testing EN 60068-2-11 1999
Part 2: Tests - Test Ka: Salt mist

1) 2)
IEC 60137 - Insulated bushings for alternating voltages EN 60137 1996
above 1 kV
1)
IEC 60141-1 - Tests on oil-filled and gas-pressure cables - -
and their accessories
Part 1: Oil-filled, paper or polypropylene
paper laminate insulated, metal-shealthed
cables and accessories for alternating
voltages up to and including 500 kV

1)
IEC 60840 - Power cables with extruded insulation and - -
their accessories for rated voltages above
30 kV (Um=36 kV) up to 150 kV
(Um=170kV) - Test methods and
requirements
1)
IEC 60859 - Cable connections for gas-insulated metal-- -
enclosed switchgear for rated voltages of
72,5 kV and above –
Fluid-filled and extruded insulation cables -
Fluid-filled and dry type cable-terminations

1)
IEC/TS 61462 - Composite insulators – - -
Hollow insulators for use in outdoor and
indoor electrical equipment –
Definitions, test methods, acceptance
criteria and design recommendations

1)
Undated reference.
2)
Valid edition at date of issue.

N 62271-203:2004 - 4 -
Publication Year Title EN/HD Year
1)
IEC 61639 - Direct connection between power - -
transformers and gas-insulated metal-
enclosed switchgear for rated voltages of
72,5 kV and above
1) 2)
IEC 61672-1 - Electroacoustics - Sound level meters EN 61672-1 2003
Part 1: Specifications
1) 2)
IEC 61672-2 - Part 2: Pattern evaluation tests EN 61672-2 2003

1)
IEC 62067 - Power cables with extruded insulation and - -
their accessories for rated voltages above
150 kV (Um = 170 kV) up to 500 kV
(Um = 550 kV) - Test methods and
requirements
1) 2)
IEC 62155 (mod) - Hollow pressurized and unpressurized EN 62155 2003
ceramic and glass insulators for use in
electrical equipment with rated voltages
greater than 1 000 V
1) 2)
IEC 62271-100 - High-voltage switchgear and controlgear EN 62271-100 2001
Part 100: High-voltage alternating-current
circuit-breakers
1) 2)
IEC 62271-102 - Part 102: High-voltage alternating current EN 62271-102 2002
disconnectors and earthing switches

1) 2)
ISO 3231 - Paints and varnishes – EN ISO 3231 1997
Determination of resistance to humid
atmospheres containing sulphur dioxide

- 5 - EN 62271-203:2004
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 CEN/CENELEC 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
5.103.2 Italy (Italian pressure vessel code for electrical switchgear DM 1 December 1980 and
DM 10 September 1981 published in Gazzetta Ufficiale n° 285 dated 16.10.1981)
For metal-enclosed switchgear and controlgear containing gas-filled compartments,
the design pressure is limited to a maximum of 0,5 bar (gauge) and the volume is
limited to a maximum of 2 m . Gas filled compartments having a design pressure
exceeding 0,5 bar (gauge) or a volume exceeding 2 m shall be designed according
to the Italian pressure vessel code for electrical switchgear.

NORME CEI
INTERNATIONALE IEC
62271-203
INTERNATIONAL
Première édition
STANDARD
First edition
2003-11
Appareillage à haute tension –
Partie 203:
Appareillage sous enveloppe métallique
à isolation gazeuse de tensions assignées
supérieures à 52 kV
High-voltage switchgear and controlgear –
Part 203:
Gas-insulated metal-enclosed switchgear
for rated voltages above 52 kV
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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.
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62271-203 © IEC:2003 – 3 –
CONTENTS
FOREWORD . 9
1 General.17
1.1 Scope .17
1.2 Normative references.17
2 Normal and special service conditions .19
2.1 Normal service conditions .19
2.2 Special service conditions .19
3 Terms and definitions.21
4 Ratings .27
4.1 Rated voltage for equipment (U ).27
r
4.2 Rated insulation level.27
4.3 Rated frequency (f ) .33
r
4.4 Rated normal current and temperature rise .33
4.5 Rated short-time withstand current (I ) .33
k
4.6 Rated peak withstand current (I ).33
p
4.7 Rated duration of short-circuit (t ) .33
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary
and control circuits (U ) .33
a
4.9 Rated supply frequency of closing and opening devices and of
auxiliary circuits .33
4.10 Rated pressure of compressed gas supply for insulation and/or operation.33
5 Design and construction.35
5.1 Requirements for liquids in switchgear and controlgear .35
5.2 Requirements for gases in switchgear and controlgear .35
5.3 Earthing of switchgear and controlgear.35
5.4 Auxiliary and control equipment.37
5.5 Dependent power operation .37
5.6 Stored energy operation.37
5.7 Independent manual operation .37
5.8 Operation of releases.37
5.9 Low- and high-pressure interlocking and monitoring devices.37
5.10 Nameplates .39
5.11 Interlocking devices .39
5.12 Position indication.39
5.13 Degrees of protection by enclosures.39
5.14 Creepage distances .39
5.15 Gas and vacuum tightness .39
5.16 Liquid tightness.41
5.17 Flammability .41
5.18 Electromagnetic compatibility (EMC) .41
6 Type tests .55
6.1 General .55
6.2
...