IEC 62271-207:2012

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

IEC 62271-207:2012 applies to gas-insulated switchgear assemblies for alternating current of rated voltages above 52 kV for indoor and outdoor installations, including their supporting structure. This second edition of IEC 62271-207 cancels and replaces the first edition published in 2007. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- modification of the minimum voltage rating from 72,5 kV to above 52 kV;
- harmonisation of qualification procedures for GIS with IEEE 693:2005 Annex A and P by modifying the response spectra;
- modification of the test procedures;
- addition of criteria of allowed stresses;
- addition of dynamic analysis CQC. The contents of the corrigendum of January 2013 have been included in this copy.

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

La CEI 62271-207:2012 s'applique aux ensembles d'appareillages à isolation gazeuse à courant alternatif de tension assignée supérieure à 52 kV, installés à l'intérieur ou à l'extérieur, en incluant leurs châssis-supports. Cette deuxième édition de la CEI 62271-207 annule et remplace la première édition publiée en 2007. Elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- modification de la tension assignée minimale, passant d'une valeur de 72,5 kV à une valeur supérieure à 52 kV;
- harmonisation des procédures de qualification pour ensembles d'appareillage à isolation gazeuse avec les Annexes A et P de l'IEEE 693:2005 en modifiant les spectres de réponse;
- modification des procédures d'essai;
- ajout de critères des contraintes autorisées;
- ajout d'une analyse dynamique CQC. Le contenu du corrigendum de janvier 2013 a été pris en considération dans cet exemplaire.

General Information

• Status: Published
• Publication Date: 26-Apr-2012
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: SC 17C - Assemblies
• Drafting Committee: MT 22 - TC 17/SC 17C/MT 22

Relations

• Corrected By: IEC 62271-207:2012/COR1:2013 - Corrigendum 1 - High-voltage switchgear and controlgear - Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV
• Effective Date: 05-Sep-2023
• Revised: IEC 62271-207:2023 - High-voltage switchgear and controlgear - Part 207: Seismic qualification for gas-insulated switchgear assemblies, metal enclosed and solid-insulation enclosed switchgear for rated voltages above 1 kV
• Effective Date: 05-Sep-2023
• Revises: IEC 62271-207:2007 - High-voltage switchgear and controlgear - Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62271-207 ®
Edition 2.0 2012-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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
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IEC 62271-207 ®
Edition 2.0 2012-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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
CODE PRIX R
ICS 29.130.10 ISBN 978-2-88912-060-4

– 2 – 62271-207  IEC:2012
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Seismic qualification requirements . 6
4.1 General . 6
4.2 Qualification levels . 6
5 Test procedures for qualification . 6
5.1 General . 6
5.2 Mounting . 7
5.3 Measurements . 7
5.4 Frequency range . 7
5.5 Test severity . 7
5.5.1 General . 7
5.5.2 Parameters for time-history excitation . 9
5.5.3 Test directions . 9
5.5.4 Test sequence . 9
6 Qualification by combined test and numerical analysis . 10
6.1 General . 10
6.2 Dynamic and functional data . 11
6.3 Numerical analysis . 11
6.3.1 General . 11
6.3.2 Numerical analysis by the acceleration time-history method . 11
6.3.3 Modal and spectrum analysis using the required response spectrum
(RRS) . 11
6.3.4 Static coefficient analysis . 12
7 Evaluation of the seismic qualification . 12
7.1 Combination of stresses . 12
7.2 Acceptance criteria for the seismic waveform . 13
7.3 Functional evaluation of the test results . 13
7.4 Allowable stresses . 13
8 Documentation . 13
8.1 Information for seismic qualification. 13
8.2 Test report . 14
8.3 Analysis report . 14
Annex A (normative) Characterisation of the test-set . 15
Annex B (informative) Criteria for seismic adequacy of gas-insulated metal-enclosed
switchgear . 17
Bibliography . 19

Figure 1 – Required response spectrum (RRS) for qualification level moderate . 8
Figure 2 – Required response spectrum (RRS) for qualification level high . 9
Figure A.1 – Monogram for the determination of equivalent damping ratio . 16

Table 1 – Seismic qualification levels for switchgear assemblies – Horizontal severities . 6

62271-207  IEC:2012 – 3 –
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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International Standard IEC 62271-207 has been prepared by subcommittee 17C: High-voltage
switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and
controlgear.
This second edition of IEC 62271-207 cancels and replaces the first edition published in 2007.
It constitutes a technical revision.
This
...