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    IEC TR 61641-2014 Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to internal faults《封闭式低压成套开关设备和控制设备在内部故障引起电弧情况下的试验导则》.pdf

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    IEC TR 61641-2014 Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to internal faults《封闭式低压成套开关设备和控制设备在内部故障引起电弧情况下的试验导则》.pdf

    1、 IEC TR 61641 Edition 3.0 2014-09 TECHNICAL REPORT RAPPORT TECHNIQUE Enclosed low-voltage switchgear and controlgear assemblies Guide for testing under conditions of arcing due to internal fault Ensembles dappareillage basse tension sous enveloppe Guide pour lessai en conditions darc dues un dfaut i

    2、nterne IEC TR 61641:2014-09(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 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

    3、and microfilm, without permission in writing from either 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 m

    4、ember National Committee for further information. Droits 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

    5、 laccord crit de lIEC ou du Comit national de lIEC du pays du demandeur. Si vous avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IE

    6、C Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electric

    7、al, electronic and related technologies. About IEC publications The technical 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. IEC Catalogue - webstore.iec.ch/catalogue The

    8、 stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enabl

    9、es to find IEC publications by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all

    10、new publications released. Available online and also once a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 14 additional lang

    11、uages. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Glossary - std.iec.ch/glossary More than 55 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have bee

    12、n collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrote

    13、chnique Internationale (IEC) 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 IEC Le contenu technique des publications IEC est constamment revu. Veuillez v

    14、ous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques e

    15、t autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android et iPad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des information

    16、s sur les projets et les publications remplaces ou retires. IEC Just Published - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.elec

    17、tropedia.org Le premier dictionnaire en ligne de termes lectroniques et lectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 14 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glo

    18、ssaire IEC - std.iec.ch/glossary Plus de 55 000 entres terminologiques lectrotechniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Serv

    19、ice Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC TR 61641 Edition 3.0 2014-09 TECHNICAL REPORT RAPPORT TECHNIQUE Enclosed low-voltage switchgear and controlgear assemblies Guide for testin

    20、g under conditions of arcing due to internal fault Ensembles dappareillage basse tension sous enveloppe Guide pour lessai en conditions darc dues un dfaut interne INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE T ICS 29.130.20 PRICE CODE CODE PRIX ISBN 978-2-8322

    21、-1855-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication vi

    22、a un distributeur agr. 2 IEC TR 61641:2014 IEC 2014 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 4 Classification of low-voltage switchgear and controlgear assemblies . 9 4.1 Classification with regard to the protection characteristic 9 4.2 Clas

    23、sification with regard to persons who have access . 9 5 ASSEMBLY characteristics . 10 6 Requirements and tests for an arc ignition protected zone . 10 6.1 Constructional requirements of an arc ignition protected zone 10 6.2 Dielectric test of arc ignition protected zones 11 6.3 IP test of arc igniti

    24、on protected zones . 11 7 Selection of test specimen and validity of tests for similar designs (possibilities for derivation) . 11 8 Testing Arc fault tests . 12 8.1 General . 12 8.2 Voltage . 12 8.3 Current . 13 8.4 Frequency . 13 8.5 Duration of the test . 13 8.6 Test procedure 13 8.6.1 Supply cir

    25、cuit . 13 8.6.2 Arc initiation 13 8.6.3 Repetition of the test . 15 8.6.4 Indicators (for observing the thermal effects of gases) . 15 8.7 Assessment of the test 16 9 Test report . 16 Annex A (informative) User guide to arc fault mitigation . 19 A.1 General . 19 A.2 Arc ignition protected zones 20 A

    26、.3 Items for classification 20 A.4 Use of this technical report . 21 Annex B (informative) List of notes concerning certain countries 22 Bibliography 23 Figure 1 Mounting frame for indicators . 18 Figure 2 Examples of installation positions of the indicators . 18 Table 1 Sizes of the copper ignition

    27、 wire without current-limiting protection device 14 Table 2 Sizes of the copper ignition wire with current-limiting protection device . 14 Table A.1 Options for classification 20 IEC TR 61641:2014 IEC 2014 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ENCLOSED LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR

    28、ASSEMBLIES GUIDE FOR TESTING UNDER CONDITIONS OF ARCING DUE TO INTERNAL FAULT FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

    29、 international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (he

    30、reafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; 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 p

    31、articipate in this preparation. IEC collaborates closely with the International Organization for Standardization (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

    32、, an international consensus of opinion on the relevant subjects since each technical committee has representation 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

    33、all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, 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

    34、apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between 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

    35、of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of 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

    36、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, property damage or other damage of any nature whatsoever, whether direct or indir

    37、ect, 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 this publication. Use of the referenced publications is indispensable for the

    38、 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 all such patent rights. The main task of IEC technical committees is to p

    39、repare 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 International Standard, for example “state of the art“. IEC/TR 61641, which is a technical repor

    40、t, has been prepared by subcommittee SC 121B: Low-voltage switchgear and controlgear assemblies, of IEC technical committee 121: Switchgear and controlgear and their assemblies for low voltage. This third edition cancels and replaces the second edition published in 2008. It constitutes a technical r

    41、evision. This third edition includes the following significant technical changes with respect to the previous edition: 4 IEC TR 61641:2014 IEC 2014 arcing classes to define the different forms of protection provided against arcing faults; (i) personnel protection, (ii) damage restricted to part of t

    42、he ASSEMBLY, and (iii) ASSEMBLY suitable for limited further service.; two levels of personnel protection afforded by ASSEMBLIES under arcing fault conditions; (i) for ASSEMBLIES installed in areas where access to the ASSEMBLY is restricted to skilled persons, and (ii) for ASSEMBLIES installed in ar

    43、eas where the area is accessible to ordinary persons; option of individually insulating all live conductors to make the complete ASSEMBLY an arc ignition protected zone (referred to as an arc free zone in previous editions of the Technical report); arc fault protection front, back and sides of an AS

    44、SEMBLY as the normal requirement; minimum performance requirements for arc ignition protected zone. The text of this technical report is based on the following documents: Enquiry draft Report on voting 121B/4/DTR 121B/14/RVC Full information on the voting for the approval of this technical report ca

    45、n 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. The readers attention is drawn to the fact that Annex B lists all of the “in-some-country” clauses on differing practices of a less permanent nature r

    46、elating to the subject of this Technical Report. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication w

    47、ill be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC TR 61641:2014 IEC 2014 5 INTRODUCTION The IEC 61439 series of standards gives rules and requirements for interface characteristics, service conditions, construction, performance and verification of low-voltage switchgear a

    48、nd controlgear assemblies, hereafter called ASSEMBLIES. The main objective of these standards is to achieve the safe operation of low-voltage switchgear and controlgear assemblies under normal operating conditions as well as under abnormal operating conditions, e.g. occurrence of overvoltages, overl

    49、oad or short-circuit currents. Therefore no characteristics, design and verification requirements are given dealing with the case of an arc fault inside the ASSEMBLY. Nevertheless the occurrence of an internal arc cannot completely be excluded. On the rare occasions that they do occur, typically internal arc faults result from: conducting materials inadvertently left in ASSEMBLIES during manufacture, installat


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