1、 IEC 62497-2 Edition 1.0 2010-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Railway applications Insulation coordination Part 2: Overvoltages and related protection Applications ferroviaires Coordination de lisolement Partie 2: Surtensions et protections associes IEC 62497-2:2010 THIS PUBLICATION I
2、S COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from eit
3、her IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. Dro
4、its de reproduction rservs. Sauf indication contraire, 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 la CEI ou du Comit national de la CE
5、I du pays du demandeur. Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de votre pays de rsidence. IEC Central Office 3, rue de Varemb CH-1211 Gen
6、eva 20 Switzerland Email: inmailiec.ch Web: www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technica
7、l content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of crite
8、ria (reference number, text, technical committee,). It also gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Availabl
9、e on-line and also by email. Electropedia: www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent terms in additional languages. Also known as the International Electrotechn
10、ical Vocabulary online. Customer Service Centre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 A propos de la
11、CEI La Commission Electrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie des normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications CEI Le contenu technique des publications de la CEI
12、 est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm Le Catalogue en-ligne de la CEI vous permet deffectuer des recherches en utilisant diffrents
13、 critres (numro de rfrence, texte, comit dtudes,). Il donne aussi des informations sur les projets et les publications retires ou remplaces. Just Published CEI: www.iec.ch/online_news/justpub Restez inform sur les nouvelles publications de la CEI. Just Published dtaille deux fois par mois les nouvel
14、les publications parues. Disponible en-ligne et aussi par email. Electropedia: www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans les langu
15、es additionnelles. Egalement appel Vocabulaire Electrotechnique International en ligne. Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-n
16、ous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 62497-2 Edition 1.0 2010-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Railway applications Insulation coordination Part 2: Overvoltages and related protection Applications ferroviaires Coordination de lisolement Partie 2: Surten
17、sions et protections associes INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE M ICS 45.060 PRICE CODE CODE PRIX ISBN 2-8318-1078-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale
18、2 62497-2 IEC:2010 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Terms and definitions .6 4 Contact line network.7 4.1 Equipment not protected by a metal-oxide arrester7 4.2 Equipment protected by a metal-oxide arrester7 4.2.1 General .7 4.2.2 Simulation for long pulse .8
19、4.2.3 Simulation for short pulse 8 5 Train line network.8 5.1 Equipment not protected by a metal-oxide arrester8 5.2 Equipment protected by a metal-oxide arrester8 6 Tests9 Annex A (informative) Maximum value of voltage U according to duration10 Bibliography12 Figure A.1 Maximum value of voltage U a
20、ccording to duration .10 Table 1 Values of the reference voltage U p 8 Table A.1 Overvoltages11 62497-2 IEC:2010 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ RAILWAY APPLICATIONS INSULATION COORDINATION Part 2: Overvoltages and related protection FOREWORD 1) The International Electrotechnical Commi
21、ssion (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 this end and i
22、n 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 National Committee i
23、nterested 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) in accordan
24、ce 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 from all intere
25、sted 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 held responsib
26、le 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 divergence be
27、tween any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of
28、conformity. IEC is not responsible for any services carried out by independent certification bodies. 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
29、members of its technical committees and IEC National Committees for any personal 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 Publicati
30、on or any other IEC Publications. 8) Attention is drawn to the Normative references 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 Publicati
31、on may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62497-2 has been prepared by IEC technical committee 9: Electrical equipment and systems for railways. This standard is based on EN 50124-2. The text of
32、 this standard is based on the following documents: FDIS Report on voting 9/1336/FDIS 9/1359/RVD Full 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 Direct
33、ives, Part 2. 4 62497-2 IEC:2010 A list of all parts of IEC 62497 series, under the general title Railway applications Insulation coordination, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on
34、 the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 62497-2 IEC:2010 5 INTRODUCTION This International Standard is part of the series IEC 62497, Railw
35、ay applications Insulation coordination. IEC 62497 consists of two parts: IEC 62497-1: Part 1: Basic requirements Clearances and creepage distances for all electrical and electronic equipment; IEC 62497-2: Part 2: Overvoltages and related protection. This part 2 deals with the shortest durations of
36、overvoltages referred to as Zone A and Zone B in Figure A.1 in informative Annex A. 6 62497-2 IEC:2010 RAILWAY APPLICATIONS INSULATION COORDINATION Part 2: Overvoltages and related protection 1 Scope This part of IEC 62497 applies to: fixed installations (downstream the secondary of the substation t
37、ransformer) and rolling stock equipment linked to the contact line of one of the systems defined in IEC 60850; rolling stock equipment linked to a train line. This standard gives simulation and/or test requirements for protection against transient overvoltages of such equipment. Long-term overvoltag
38、es are not treated in this standard. 2 Normative references 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
39、) applies. IEC 60099-1, Surge arresters Part 1: Non-linear resistor type gapped arresters for a.c. systems IEC 60099-4, Surge arresters Part 4: Metal-oxide surge arresters without gaps for a.c. systems IEC 60850, Railway applications Supply voltages of traction systems IEC 61992-5, Railway applicati
40、ons Fixed installations D.C. switchgear Part 5: Surge arresters and low-voltage limiters for specific use in d.c. systems UIC 550, Power supply installations for passenger stock 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 voltages 3.1.1 o
41、vervoltage any voltage having a peak value exceeding the corresponding peak value of maximum steady-state voltage at normal operating conditions 3.1.2 temporary overvoltage an overvoltage of relatively long duration due to voltage variations 62497-2 IEC:2010 7 NOTE A temporary overvoltage is indepen
42、dent of the network load. It is characterized by a voltage/time curve. 3.1.3 transient overvoltage A short duration overvoltage of a few milliseconds or less due to current transfer NOTE A transient overvoltage depends on the network load. It cannot be characterised by a voltage/time curve. Basicall
43、y, a transient overvoltage is the result of a current transfer from a source to the load (network). 3.1.3.1 switching overvoltage the transient overvoltage at any point of the system due to specific switching operation or fault IEC 60664-1, 3.7.3 3.1.3.2 lightning overvoltage the transient overvolta
44、ge at any point of the system due to a specific lightning discharge 3.2 network set of conductors fulfilling a certain function, the overvoltages of which are likely to damage the equipment they are connected to 4 Contact line network NOTE The provisions of this Clause 4 do not take into account rap
45、id transient overvoltages in the multimegahertz range such as generated by operation of vacuum circuit breakers which may require a specific overvoltage protection. 4.1 Equipment not protected by a metal-oxide arrester If the equipment is not protected by a metal-oxide arrester, the protection again
46、st overvoltages shall take into account overvoltages limited only by the intrinsic isolation of the contact line and the possible presence of other types of arrester or spark gaps. 4.2 Equipment protected by a metal-oxide arrester 4.2.1 General If the supplier wants to benefit from the presence of a
47、 metal-oxide arrester for reducing constraints resulting from 4.1, he shall perform a simulation of the behaviour of the protection against overvoltages. The circuits of the protected equipment likely to modify the electrical behaviour of the protection shall also be simulated. The equipment shall w
48、ithstand the pulses defined in 4.2.2 and 4.2.3, where the values of the reference voltage U pare defined in Table 1. 8 62497-2 IEC:2010 Table 1 Values of the reference voltage U pNominal network voltage according to IEC 60850 U nkV U pkV 0,75 4 1,5 6 3 12 15 60 20 80 25 100 25 110 a NOTE The values
49、of U p take into account the values of U res as given in IEC 60099- 1 and IEC 60099-4 and/or U p as given in IEC 61992-5. But they relate to a theoretical arrester, for simulation purposes only, and present not any direct link to U res of IEC 60099-1 and IEC 60099-4 and/or U p of IEC 61992-5. aSee footnote i to Table 1 of IEC 60850 regarding nominal voltage 25 kV. 4.2.2 Sim
