1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationHigh-voltage switchgear and controlgear Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kVBS EN 62271-207:2012National forewor
2、dThis British Standard is the UK implementation of EN 62271-207:2012. It isidentical to IEC 62271-207:2012. It supersedes BS EN 62271-207:2007 whichis withdrawn.The UK participation in its preparation was entrusted by Technical CommitteePEL/17, Switchgear, controlgear, and HV-LV co-ordination, to Su
3、bcommitteePEL/17/1, High-voltage switchgear and controlgear.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The
4、British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 72474 9ICS 29.130.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 Augu
5、st 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 62271-207:2012EUROPEAN STANDARD EN 62271-207 NORME EUROPENNE EUROPISCHE NORM July 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisch
6、es Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62271-207:2012 E ICS 29.130.10 Supersedes EN 62271-207:2007English version High-vo
7、ltage switchgear and controlgear - Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV (IEC 62271-207:2012) Appareillage haute tension - Partie 207: Qualification sismique pour ensembles dappareillages isolation gazeuse pour des niveaux de tension a
8、ssigne suprieurs 52 kV (CEI 62271-207:2012) Hochspannungs-Schaltgerte und -Schaltanlagen - Teil 207: Erdbebenqualifikation fr gasisolierte Schaltgertekombinationen mit Bemessungsspannungen ber 52 kV (IEC 62271-207:2012) This European Standard was approved by CENELEC on 2012-06-01. CENELEC members ar
9、e 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
10、the CEN-CENELEC Management Centre 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 CEN-CENELEC Manag
11、ement Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ire
12、land, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 62271-207:2012EN 62271-207:2012 - 2 - Foreword The text of document 17C/542/FDIS, future edition 2 of IEC 62271-
13、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 approved by CENELEC as EN 62271-207:2012. The following dates are fixed: latest date by which the document has to be implemented
14、 at national level by publication of an identical national standard or by endorsement (dop) 2013-03-01 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2015-06-01 This document supersedes EN 62271-207:2007. EN 62271-207:2012 includes the following
15、significant technical changes with respect to EN 62271-207:2007: - 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; -
16、addition of criteria of allowed stresses; - addition of dynamic analysis CQC. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsem
17、ent notice The text of the International Standard IEC 62271-207:2012 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 61462 NOTE Harmonized as EN 61462. IEC 62155
18、NOTE Harmonized as EN 62155. IEC 62231 NOTE Harmonized as EN 62231. BS EN 62271-207:2012- 3 - EN 62271-207:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referen
19、ced in this document and are indispensable for its application. 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 modificat
20、ions, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-2-47 - Environmental testing - Part 2-47: Tests - Mounting of specimens for vibration, impact and similar dynamic tests EN 60068-2-47 - IEC 60068-2-57 - Environmental testing - Part 2-57: Tests - Test F
21、f: Vibration - Time-history method EN 60068-2-57 - IEC 60068-3-3 1991 Environmental testing - Part 3: Guidance - Seismic test methods for equipments EN 60068-3-3 1993 IEC 62271-1 - High-voltage switchgear and controlgear - Part 1: Common specifications EN 62271-1 - IEC 62271-203 - High-voltage switc
22、hgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV EN 62271-203 - BS EN 62271-207:2012 2 62271-207 IEC:2012 CONTENTS 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Seismic qualification requirements . 6 4.1 General . 6 4.2 Q
23、ualification 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 comb
24、ined 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 co
25、efficient 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
26、 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
27、 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 BS EN 62271-207:201262271-207 IEC:2012 5 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR P
28、art 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV 1 Scope This part of IEC 62271 applies to gas-insulated switchgear assemblies for alternating current of rated voltages above 52 kV for indoor and outdoor installations, including their supporting s
29、tructure. For switchgear devices, e.g. live tank circuit breakers, IEC/TR 62271-300 is applicable. Guidance on interactions between the supporting structure and the soil / foundations is provided in Annex B. The seismic qualification of the switchgear assemblies takes into account testing of typical
30、 switchgear assemblies combined with methods of analysis. Mutual interaction between directly mounted auxiliary and control equipment and switchgear assemblies are covered. The seismic qualification of switchgear assemblies is only performed upon request. 2 Normative references The following documen
31、ts, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-47, Environmenta
32、l testing Part 2-47: Tests Mounting of specimens for vibration, impact and similar dynamic tests IEC 60068-2-57, Environmental testing Part 2-57: Tests Test Ff: Vibration Time-history method IEC 60068-3-3:1991, Environmental testing Part 3: Guidance Seismic test methods for equipments IEC 62271-1, H
33、igh-voltage switchgear and controlgear Part 1: Common specifications IEC 62271-203, High-voltage switchgear and controlgear Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV 3 Terms and definitions For the purposes of this document, the terms and definitions given in I
34、EC 60068-3-3, IEC 62271-203 and IEC 62271-1 apply. BS EN 62271-207:2012 6 62271-207 IEC:2012 4 Seismic qualification requirements 4.1 General The seismic qualification shall demonstrate the ability of the switchgear assemblies to withstand seismic stress. It may be proofed by test or by a combinatio
35、n of test and analysis. No failure on the enclosure and the main circuits as well as on the control and auxiliary circuit, including the relevant supporting structures, shall occur. For ductile material, minor permanent deformations are acceptable provided that they do not impair the functionality o
36、f the equipment. The equipment shall properly operate after the seismic event as defined in 7.2 and 7.3. 4.2 Qualification levels The qualification has to be done on one of the recommended levels of Table 1. For vertical severities the direction factor is 0,5. No qualification is required for low se
37、ismic level as far as construction practice and seismic construction practice comply with the state of the art. Other qualification levels which consist in requirements from the customer that can be based on specific investigation at site or regulations in national standard, taking into account for
38、example the type of soil, soil structure interaction, building response, and elevation may be used. Table 1 Seismic qualification levels for switchgear assemblies Horizontal severities Qualification level Required response spectrum (RRS) Zero period acceleration (ZPA) m/s2High Figure 1 5 Moderate Fi
39、gure 2 2,5 Low - 1 5 Test procedures for qualification 5.1 General The test procedure for qualification of a test-set shall be in accordance with IEC 60068-3-3. The qualification shall be carried out on a representative test-set. NOTE 1 For GIS it is not possible to test a complete substation on a s
40、hake table, because of the size and weight. Numerical analysis is always needed to give information about the seismic qualification. The seismic test needs to be carried out under the rated filling pressure of the GIS. The rated filling pressure in the GIS is required to test under realistic situati
41、ons. Nevertheless test laboratories for seismic testing need adequate safety measures. Test laboratories are available in USA, Europe and Japan. During the seismic testing no operation of the circuit breaker is necessary. BS EN 62271-207:201262271-207 IEC:2012 7 NOTE 2 The circuit breaker operates m
42、uch faster than any earthquake excitation and therefore a switching operation has no practical impact on the test result. If the auxiliary and control equipment or other parts of the equipment are dynamically uncoupled, they may be qualified independently. If a test-set cannot be tested with its sup
43、porting structure (e.g., due to its size), the dynamic contribution of the structure shall be determined by analysis and taken into account in the test. The time-history test method is to be preferred, since it more closely simulates actual conditions, particularly if the behaviour of the test-set i
44、s not linear. The test method shall be in accordance with IEC 60068-2-57. 5.2 Mounting The test-set shall be mounted as in service including dampers (if any). The horizontal orientation of the test-set shall be in the direction of excitation acting along its two main orthogonal axes. Any fixations o
45、r connections that are required only the convenience of testing must not affect the dynamic behaviour of the test-set. The method of mounting of the test-set shall be documented and shall include a description of any interposing fixtures and connections. IEC 60068-2-47 provides guidance. 5.3 Measure
46、ments Measurements shall be performed in accordance with IEC 60068-3-3 and shall include vibration motion of components where maximum deflections and significant relative displacements are expected; strains of critical elements (e.g. bushings, flanges, enclosures and support structures). 5.4 Frequen
47、cy range Frequency range shall be 0,5 Hz to 33 Hz. The frequency range is applied to the resonant frequency search test and the generation of artificial earthquake wave. 5.5 Test severity 5.5.1 General The test severity shall be chosen in accordance with Clause 4. The recommended required response s
48、pectra are given in Figures 1 and 2 for the different seismic qualification levels. The curves relate to 2 %, 5 %, 10 % of the switchgear assemblies. If damping factor is unknown, 2 % damping is applied. Spectra for different damping values may be obtained by linear interpolation. BS EN 62271-207:20
49、12 8 62271-207 IEC:2012 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 10 100 Sa(g)d = 2 0,1 0,2 0,4 0,6 2 4 6 20 40 f (Hz) d = 5 d = 10 IEC 694/12 Spectral Accelerations, Sa(g), for Frequencies, f (Hz): Sa= 0,572 f for 0,0 f 1,1 Sa= 0,625 for 1,1 f 8,0 Sa= (6,6 2,64) / f 0,2 + 0,33 for 8,0 f 33 Sa = 0,25 for f 33 = (3,21 0,68 ln(d) / 2,115 6, where d is the percent damping (2, 5, 10, etc.) and d 20 % Figure 1
