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 978-0-626-20771-7 SANS 62271-108:2007Edition 1IEC 62271-108:2005Edition 1SOUTH AFRICAN NATIONAL STANDARD High-voltage switchgear and controlgear Par
4、t 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above This national standard is the identical implementation of IEC 62271-108:2005 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can only be used in
5、 conjunction with SANS 62271-100, SANS 62271-102 and SANS 60694. Published by Standards South Africa 1 dr lategan road groenkloof 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 62271-108:2007 Edition 1 IEC 62
6、271-108:2005 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee StanSA SC 67A, Electricity distribution systems and components High-voltage switchgear, in accordance with procedures of Standards South Africa, in complianc
7、e with annex 3 of the WTO/TBT agreement. This SANS document was published in November 2007. NORME INTERNATIONALECEIIECINTERNATIONAL STANDARD 62271-108Premire ditionFirst edition2005-10Appareillage haute tension Partie 108: Disjoncteurs-sectionneurs courant alternatif haute tension de tensions assign
8、es suprieures ou gales 72,5 kV High-voltage switchgear and controlgear Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above Pour prix, voir catalogue en vigueur For price, see current catalogue IEC 2005 Droits de reproduction rservs Copyri
9、ght - 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 utilize
10、d 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 03 0
11、0 E-mail: inmailiec.ch Web: www.iec.ch CODE PRIX PRICE CODE T Commission Electrotechnique InternationaleInternational Electrotechnical Commission SANS 62271-108:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62271-108 IEC:2005 3 CONTENTS
12、 FOREWORD.7 1 General 11 1.1 Scope and object.11 1.2 Normative references 11 2 Normal and special service conditions11 3 Terms and definitions .13 3.1 General terms 13 3.2 Assemblies of switchgear and controlgear13 3.3 Parts of assemblies13 3.4 Switching devices.13 3.5 Parts of switchgear and contro
13、lgear .13 3.6 Operation .15 3.7 Characteristic quantities.15 4 Ratings.17 4.2 Rated insulation level .19 4.112 Rated static terminal load.19 5 Design and construction .25 5.10 Nameplates 25 5.11 Interlocking devices25 5.12 Position indication 25 5.102 Requirements in respect of the isolating distanc
14、e of disconnecting circuit-breakers.25 5.104.1 Securing of position25 5.104.2 Additional requirements for power operated mechanisms .25 6 Type tests 27 6.1 General 27 6.2 Dielectric tests .27 6.3 Radio interference (r.i.v.) tests .27 6.4 Measurement of the resistance of the main circuit 27 6.5 Tempe
15、rature-rise tests .27 6.6 Short-time withstand current and peak withstand current tests .27 6.7 Verification of the degree of protection .27 6.8 Tightness tests.27 6.9 Electromagnetic compatibility tests.27 6.101 Mechanical and environmental tests.29 6.102 Miscellaneous provisions for making and bre
16、aking tests.29 6.103 Test circuits for short-circuit making and breaking tests29 6.104 Short-circuit test quantities.29 6.105 Short-circuit test procedure 29 6.106 Basic short-circuit test-duties .29 6.107 Critical current tests .29 6.108 Single-phase and double-earth fault tests.31 6.109 Short-line
17、 fault tests .31 6.110 Out-of-phase making and breaking tests 31 SANS 62271-108:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62271-108 IEC:2005 5 6.111 Capacitive current switching tests 31 6.112 Special requirements for making and bre
18、aking tests on class E2 disconnecting circuit-breakers 31 6.113 Tests to verify the proper function of the position indicating device 31 A.6.105Tests to verify the proper function of the position indicating device.31 6.114 Combined function test.33 7 Routine tests 43 8 Guide to the selection of disc
19、onnecting circuit-breakers for service 43 9 Information to be given with enquires, tenders and orders 43 10 Rules for transport, storage, installation, operation and maintenance .43 11 Safety.43 Annex A (informative) Explanatory notes and examples of disconnecting circuit-breakers45 Bibliography47 F
20、igure 1 Static terminal load forces21 Figure 2 Directions for static terminal load tests.23 Figure 3 Test sequence for mechanical operations and short-circuit combined function tests when performed as separate tests.35 Figure 4 Test sequence for mechanical operations and short-circuit combined funct
21、ion tests when performed in one sequence37 Figure A.1 A making (breaking) unit (or several identical units connected in series) which satisfies the dielectric requirements of a disconnector.45 Figure A.2 Device with a single gap which is divided into a making (breaking) section and an isolating sect
22、ion 45 Figure A.3 Circuit-breaker which, together with a series connected disconnector, commonly satisfies the dielectric requirements of a disconnector in open position 45 Table 1 Recommended static terminal loads 19 SANS 62271-108:2007This s tandard may only be used and printed by approved subscri
23、ption and freemailing clients of the SABS .62271-108 IEC:2005 7 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above FOREWORD 1) The International Electrot
24、echnical 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 electronic fields. To
25、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; any IEC Nation
26、al 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 Standardization (ISO
27、) 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 representation fr
28、om 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, IEC cannot be h
29、eld 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 publications. Any
30、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 an IEC Publicat
31、ion. 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 injury, propert
32、y 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 references cited in thi
33、s 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 identifying any or
34、 all such patent rights. International Standard IEC 62271-108 has been prepared by subcommittee 17A, High-voltage switchgear and controlgear of IEC technical committee 17: Switchgear and controlgear. The text of this standard is based on the following documents: FDIS Report on voting 17A/742/FDIS 17
35、A/749/RVDFull information on the voting for the approval of this standard 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 2. SANS 62271-108:2007This s tandard may only be used and printed by approved
36、 subscription and freemailing clients of the SABS .62271-108 IEC:2005 9 In Canada disconnecting circuit-breakers are accepted only when a visible gap is provided. This standard should be read in conjunction with IEC 62271-100 (2001), IEC 62271-102 (2001) and IEC 60694, second edition, published in 1
37、996, 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 IEC 60694. Amendments to these clauses and subclauses are given under the same numbering, whilst
38、additional subclauses are numbered from 101. The following standards belong to the same IEC 62271 series, under the general title High-voltage switchgear and controlgear: Part 100: High-voltage alternating-current circuit-breakers Part 101: Synthetic testing (to be published) Part 102: Alternating c
39、urrent disconnectors and earthing switches Part 104: Alternating current switches for rated voltages of 52 kV and above (in preparation) Part 105: Alternating current switch-fuse combinations Part 107: Alternating current fused circuit-switchers for rated voltages above 1 kV up to and including 52 k
40、V (to be published) Part 108: High voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above Part 109: Alternating-current series capacitor by-pass switches (to be published) Part 110: Inductive load switching The list of other parts of the IEC 62271 series c
41、an be found on the IEC website http:/www.iec.ch. Further information is available at http:/tc17.iec.ch. 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 rela
42、ted to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. SANS 62271-108:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62271-108 IEC:2005 11 HIGH-VOLTAGE SW
43、ITCHGEAR AND CONTROLGEAR Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above 1 General 1.1 Scope and object This part of IEC 62271 applies to high-voltage alternating current disconnecting circuit-breakers for operation at frequencies of
44、50 Hz and 60 Hz on systems having voltages of 72,5 kV and above. This standard identifies which requirements of IEC 60694, IEC 62271-100 and IEC 62271-102 standards are applicable. It also gives the additional requirements specific to these devices. This standard covers a circuit-breaker which, when
45、 in the open position, satisfies the requirements of both a circuit-breaker and a disconnector. As there is interaction between the requirements of the separate functions it is necessary to consider the standardisation of requirements. This standard details the requirements for a disconnecting circu
46、it-breaker, identifying where these differ from the separate requirements of a discrete circuit-breaker and a disconnector. NOTE For design examples of disconnecting circuit-breakers, refer to Annex A. 1.2 Normative references The following referenced documents are indispensable for the application
47、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. IEC 60694:1996, Common specifications for high-voltage switchgear and controlgear standards IEC 62271-100:2001, High-volta
48、ge switchgear and controlgear Part 100: High-voltage alternating-current circuit-breakers IEC 62271-102:2001, High-voltage switchgear and controlgear Part 102: Alternating-current disconnectors and earthing switches IEC 62271-310:2004, High-voltage switchgear and controlgear Part 310: Electrical end
49、urance testing for circuit-breakers of rated voltage 72,5 kV and above 2 Normal and special service conditions Clause 2 of IEC 60694 is applicable. SANS 62271-108:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .62271-108 IEC:2005 13 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE 1 Certain definitions taken from
