1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-19555-7 SANS 62271-300:2007Edition 1IEC TR 62271-300:2006Edition 1SOUTH AFRICAN NATIONAL STANDARD High-voltage switchgear and controlgear
4、Part 300: Seismic qualification of alternating current circuit-breakers This national standard is the identical implementation of IEC TR 62271-300:2006 and is adopted with the permission of the International Electrotechnical Commission. Published by Standards South Africa 1 dr lategan road groenkloo
5、f private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 62271-300:2007 Edition 1 IEC TR 62271-300:2006 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by N
6、ational Committee StanSA SC 67A, Electricity distribution systems and components High-voltage switchgear, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in June 2007. RAPPORT TECHNIQUE CEIIECTECHNICAL REP
7、ORT TR 62271-300Premire ditionFirst edition2006-11Appareillage haute tension Partie 300: Qualification sismique des disjoncteurs courant alternatif High-voltage switchgear and controlgear Part 300: Seismic qualification of alternating current circuit-breakers IEC 2006 Droits de reproduction rservs C
8、opyright - all rights reserved Aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lditeur. No part of this publication may be reproduced or ut
9、ilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919
10、 03 00 E-mail: inmailiec.ch Web: www.iec.ch T Commission Electrotechnique InternationaleInternational Electrotechnical Commission Pour prix, voir catalogue en vigueur For price, see current catalogueCODE PRIX PRICE CODE SANS 62271-300:2007This s tandard may only be used and printed by approved subsc
11、ription and freemailing clients of the SABS .TR 62271-300 IEC:2006 3 CONTENTS FOREWORD.7 1 Scope and object11 2 Normative references .11 3 Definitions 13 4 Seismic qualification requirements .13 5 Preliminary analysis .13 5.1 Selection of the representative test specimen13 5.2 Mathematical model of
12、the circuit-breaker .13 5.3 Severity levels.15 6 Qualification by test15 6.1 Introduction .15 6.2 Mounting .17 6.3 External load .17 6.4 Measurements.17 6.5 Frequency range.17 6.6 Test severity .17 6.7 Testing19 7 Qualification by combined test and analysis .19 7.1 Introduction .19 7.2 Vibrational a
13、nd functional data 21 7.3 Analysis 21 8 Evaluation of the seismic qualification 25 8.1 Combination of stresses 25 8.2 Acceptance criteria of the seismic simulation.25 8.3 Functional evaluation of the test results 25 8.4 Allowable stresses 27 9 Documentation .27 9.1 Information for seismic qualificat
14、ion.27 9.2 Test report 27 9.3 Analysis report 27 Annex A (informative) Characterisation of the circuit-breaker.37 Annex B (informative) Seismic Qualification Report .43 Bibliography49 Figure 1 RRS for ground-mounted circuit-breaker and their assemblies Qualification level: AF5: ZPA = 5 m/s2(0,5 g) .
15、29 Figure 2 RRS for ground-mounted circuit-breaker and their assemblies Qualification level: AF3: ZPA = 3 m/s2(0,3 g) .31 Figure 3 RRS for ground-mounted circuit-breaker and their assemblies Qualification level: AF2: ZPA = 2 m/s2(0,2 g) .33 Figure 4 Example for combination of stresses35 SANS 62271-3
16、00:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .TR 62271-300 IEC:2006 5 Figure A.1 Monogram for the determination of equivalent damping ratio 41 Table 1 Seismic qualification levels Horizontal severities 15 SANS 62271-300:2007This s ta
17、ndard may only be used and printed by approved subscription and freemailing clients of the SABS .TR 62271-300 IEC:2006 7 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 300: Seismic qualification of alternating current circuit-breakers FOREWORD 1) The Interna
18、tional Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electro
19、nic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees;
20、 any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Stand
21、ardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has re
22、presentation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate,
23、IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional pub
24、lications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with
25、an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal
26、injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative referenc
27、es cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for ide
28、ntifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. However, a technical committee may propose the publication of a technical report when it has collected data of a different kind from that which is normally published as an Interna
29、tional Standard, for example “state of the art“. IEC 62271-300, which is a technical report, has been prepared by subcommittee 17A: High-voltage switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear. This technical report cancels and replaces the first edition of IEC/
30、TR 61166 and constitutes a technical revision. SANS 62271-300:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .TR 62271-300 IEC:2006 9 The text of this technical report is based on the following documents: Enquiry draft Report on voting 17
31、A/760/DTR 17A/763/RVCFull information on the voting for the approval of this technical report can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 3. A list of all parts of IEC 62271 series, under the gen
32、eral title High-voltage switchgear and controlgear can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific
33、publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. SANS 62271-300:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .TR 62271-300 IEC:2006 11 HIGH-VOLTAGE SWITCHGEAR AND CONT
34、ROLGEAR Part 300: Seismic qualification of alternating current circuit-breakers 1 Scope and object This technical report applies only to circuit-breakers with their supporting structures which are rigidly connected with the ground, and does not cover the seismic qualification of circuit-breakers in
35、metal enclosed switchgear. Where circuit-breakers are not ground mounted, for example in a building, conditions for application are subject to agreement between users and manufacturers. The seismic qualification of the circuit-breakers should take into account any auxiliary and control equipment whi
36、ch is mounted on the circuit-breaker structure. If the auxiliary and control equipment is mounted on a separate structure, it may be qualified independently. This technical report is a guide providing procedures to seismically qualify ground mounted circuit-breakers. The seismic qualification of a c
37、ircuit-breaker is only performed upon request. This technical report specifies seismic severity levels and gives a choice of methods that can be applied to demonstrate the performance of circuit-breakers for which seismic qualification is required. NOTE In the USA, the evaluation of the seismic qual
38、ifications for circuit breakers is conducted in accordance with IEEE 693: IEEE Recommended Practice for Seismic Design of Substations. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applie
39、s. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-6: Environmental testing Part 2: Tests Test Fc and guidance: Vibration (sinusoidal) IEC 60068-2-47: Environmental testing Part 2-47: Tests Mounting of components, equipment and ot
40、her articles 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: Environmental testing Part 3: Guidance Seismic test methods for equipments IEC 60721-2-6: Classification of environmental conditio
41、ns Part 2: Environmental conditions appearing in nature Earthquake vibration and shock IEC 62155: Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1 000 V SANS 62271-300:2007This s tandard may only be used and printed
42、by approved subscription and freemailing clients of the SABS .TR 62271-300 IEC:2006 13 IEC 62271-100: High-voltage switchgear and controlgear Part 100: High-voltage alternating-current circuit-breakers 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC
43、60068-3-3 and IEC 62271-100 apply. 4 Seismic qualification requirements The seismic qualification should demonstrate the circuit-breakers ability to withstand seismic stress and to maintain its specified function, both during and after the seismic event. No failure on the main circuits, the control
44、and auxiliary circuit, including the relevant mounting structures, should occur. The equipment should properly operate after the seismic event as defined in 8.3 and 8.4. Analytical methods, experimental methods or a combination of both should be used to perform the seismic qualification If analytica
45、l methods are used, sufficient data is required as defined in 7.2; if not, a sample specimen representing the system for the purpose of structure and function should be subjected to a test. This basic experimental data should be used as input for calibration in analytical methods. For complete circu
46、it-breakers the analytical method should be considered as a sufficient demonstration for seismic qualification. 5 Preliminary analysis 5.1 Selection of the representative test specimen Due to limitation of the available experimental facilities, the seismic qualification of circuit-breakers may requi
47、re the definition and the choice of a different test specimen. The manufacturer should demonstrate that the test specimen represents the whole circuit-breaker for the purpose of structural and functional checks. It is recommended to identify the dynamic behaviour of the circuit-breaker (natural freq
48、uencies and damping ratios) through the experimental activities of Annex A. 5.2 Mathematical model of the circuit-breaker On the basis of technical information concerning the design characteristics, a three-dimensional model of the circuit-breaker should be created. Such a model should have sufficie
49、nt sensitivity to describe the dynamic behaviour of the circuit-breaker in the frequency range being studied. SANS 62271-300:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .TR 62271-300 IEC:2006 15 5.3 Severity levels The severity levels should preferably be chosen from Table 1. It is possible to use site specific spectra or one resulting from se
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