EN 62271-207:2007

SLOVENSKI STANDARD
01-januar-2008
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High-voltage switchgear and controlgear -- Part 207: Seismic qualification for gas-
insulated switchgear assemblies for rated voltages above 52 kV (IEC 62271-207:2007)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 207: Erdbebenqualifikation für
gasisolierte Schaltgerätekombinationen mit Bemessungsspannungen über 52 kV (IEC
62271-207:2007)
Appareillage a haute tension -- Partie 207: Qualification sismique pour ensembles
d'appareillage a isolation gazeuse pour des niveaux de tension assignée supérieurs a 52
kV (IEC 62271-207:2007)
Ta slovenski standard je istoveten z: EN 62271-207:2007
ICS:
29.130.10
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62271-207
NORME EUROPÉENNE
October 2007
EUROPÄISCHE NORM
ICS 29.130.10 Supersedes EN 62271-2:2003

English version
High-voltage switchgear and controlgear -
Part 207: Seismic qualification for gas-insulated switchgear assemblies
for rated voltages above 52 kV
(IEC 62271-207:2007)
Appareillage à haute tension -  Hochspannungs-Schaltgeräte
Partie 207: Qualification sismique und -Schaltanlagen -
pour ensembles d'appareillages
Teil 207: Erdbebenqualifikation für
à isolation gazeuse pour des niveaux gasisolierte Schaltgerätekombinationen
de tension assignée supérieurs à 52 kV mit Bemessungsspannungen über 52 kV
(CEI 62271-207:2007) (IEC 62271-207:2007)

This European Standard was approved by CENELEC on 2007-10-01. 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 62271-207:2007 E
Foreword
The text of document 17C/407/FDIS, future edition 1 of IEC 62271-207, 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 62271-207 on
2007-10-01.
This European Standard supersedes EN 62271-2:2003.
The change from EN 62271-2:2003 is as follows:
– the minimum voltage rating was changed from “72,5 kV” to “above 52 kV”.
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) 2008-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62271-207:2007 was approved by CENELEC as a European
Standard without any modification.
__________
– 3 – EN 62271-207:2007
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
1) 2)
IEC 60068-2-47 – Environmental testing - EN 60068-2-47 2005
Part 2-47: Tests - Mounting of specimens for
vibration, impact and similar dynamic tests

1) 2)
IEC 60068-2-57 – Environmental testing - EN 60068-2-57 2000
Part 2-57: Tests - Test Ff: Vibration - Time-
history method
IEC 60068-3-3 1991 Environmental testing - EN 60068-3-3 1993
Part 3: Guidance - Seismic test methods for
equipments
1) 2)
IEC 60694 – Common specifications for high-voltage EN 60694 1996
switchgear and controlgear standards + corr. May 1999

1) 2)
IEC 62271-203 – High-voltage switchgear and controlgear - EN 62271-203 2004
Part 203: Gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV

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

IEC 62271-207
Edition 1.0 2007-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 207: Seismic qualification for gas-insulated switchgear assemblies for
rated voltages above 52 kV
Appareillage à haute tension –
Partie 207: Qualification sismique pour ensembles d'appareillages à isolation
gazeuse pour des niveaux de tension assignée supérieurs à 52 kV

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
T
CODE PRIX
ICS 29.130.10 ISBN 2-8318-9282-1

– 2 – 62271-207 © IEC:2007
CONTENTS
FOREWORD.4

1 Scope and object.6
2 Normative references .6
3 Terms and definitions .7
4 Seismic qualification requirements .7
4.1 General .7
4.2 Preliminary analysis .7
4.2.1 Selection of the representative test-set.7
4.2.2 Mathematical model of the test-set .7
5 Severities .8
6 Qualification by test.8
6.1 Introduction .8
6.2 Mounting .8
6.3 Measurements.9
6.4 Frequency range .9
6.5 Test severity .9
6.5.1 General .9
6.5.2 Parameters for time-history excitation.9
6.6 Testing .9
6.6.1 Test directions.9
6.6.2 Test sequence.9
7 Qualification by combined test and numerical analysis .10
7.1 Introduction .10
7.2 Vibrational and functional data .11
7.3 Numerical analysis .11
7.3.1 General .11
7.3.2 Numerical analysis by the acceleration time-history method .11
7.3.3 Modal and spectrum analysis using the required response spectrum
(RRS) .12
7.3.4 Static coefficient analysis .12
8 Evaluation of the seismic qualification .12
8.1 Combination of stresses .12
8.2 Acceptance criteria of the seismic test.13
8.3 Functional evaluation of the test results .13
8.4 Allowable stresses .13
9 Documentation .13
9.1 Information for seismic qualification.13
9.2 Test report .13
9.3 Analysis report .14

Annex A (normative) Characterization of the test-set .18
Annex B (informative) Criteria for seismic adequacy of gas-insulated metal-enclosed
switchgear .21

62271-207 © IEC:2007 – 3 –
Bibliography.24

Figure 1 – RRS for ground-mounted switchgear assemblies – Qualification level: AF5;
ZPA = 5 m/s (0,5 g).15
Figure 2 – RRS for ground-mounted switchgear assemblies – Qualification level: AF3;
ZPA = 3 m/s (0,3 g).16
Figure 3 – RRS for ground-mounted switchgear assemblies – Qualification level: AF2;
ZPA = 2 m/s (0,2 g).17
Figure A.1 – Monogram for the determination of equivalent damping ratio .20

Table 1 – Seismic qualification levels for switchgear assemblies – Horizontal severities .8

– 4 – 62271-207 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 207: Seismic qualification for gas-insulated
switchgear assemblies for rated voltages above 52 kV

FOREWORD
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the lat
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