IEC 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 d'appareillageabassetensionsous enveloppe-Guidepour I'essai enconditionsd'arcduesaundefautinterne IEC TR 61641:2014-09(en-fr) THIS PUBLICATIONIS 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 and microfilm, without permission in writing from eitherIEC or IEC's 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 Droits de reproduction reserves. Sauf indication contraire, aucune partie de cette publication ne peut etre reproduite ni utilisee sous quelque forme que ce soit et par aucun procede, electronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord écrit de I'IEc ou du Comite national de I'IEC du pays du demandeur. Si vous avez des questions sur le copyright de I'EC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnees ci-apres ou contactez le Comite national de I'IEC de votre pays de residence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembé Fax: +4122 919 03 00 CH-1211 Geneva 20 info@iec.ch Switzerland www.iec.ch About the IEC International Standards for all electrical, 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 Electropedia-www.electropedia.org The stand-alone application for consulting theentire The world's leading online dictionary of electronic and bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and Technical Specifications, and other definitions in English and French, with equivalent terms in 14 documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International iPad. Electrotechnical Vocabulary (IEV) online IEC publications search -www.iec.ch/searchpub IEc Glossary - std.iec.ch/glossary The advanced search enables to find IEC publications by a More than 55 000 electrotechnical terminology entries in varietyofcriteria (reference number, text, technical English and French extracted from the Terms and Definitions committee,...). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries and withdrawn publications. have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEc Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre -webstore.iec.ch/csc details all new publications released. Available online and If you wish to give us your feedback on this publication or also once a month by email. need further assistance, please contact the Customer Service Centre: csc@iec.ch. A propos de IIEC La Commission Electrotechnique Internationale (lEC) est la premiere organisation mondiale qui élabore et publie des Normes internationales pour tout ce qui a trait a 'électricite, a i'electronique et aux technologies apparentees. Apropos despublications IEc Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez I'édition la plus recente, un corrigendum ou amendement peut avoir ete publie. Catalogue lEC -webstore.iec.ch/catalogue Electropedia-www.electropedia.org Application autonome pour