IEC IEEE TEC/IEEE60780-323 Edition1.02016-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Nuclearfacilities-Electricalequipmentimportanttosafety-Qualification Installationsnucleaires-Equipementselectriquesimportantspourlasurete Qualification EC/IEEE THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright2016IEC,Geneva,Switzerland Copyright@2016IEEE or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing being secured. Requests for permission to reproduce should be addressed to either IEC at the address below or IEC's member National Committee in the country of the requester or from IEEE. IEC Central Office Institute of Electrical and Electronics Engineers, Inc. 3,rue de Varembe 3 Park Avenue CH-1211 Geneva 20 NewYork, NY10016-5997 Switzerland United States of America Tel.: +41 22 919 02 11 [email protected] Fax: +41 22 919 03 00 www.ieee.org [email protected] www.iec.ch Aboutthe IEC International Standards for all electrical, electronic and related technologies. About the IEEE IEEE is the world's largest professional association dedicated to advancing technological innovation and excellence for the benefit of humanity. IEEE and its members inspire a global community through its highly cited publications, conferences, technology standards, and professional and educational activities. About IEC/IEEEpublications that you have the latest edition, a corrigendum or an amendment might have been published. IECCatalogue-webstore.iec.ch/catalogue Electropedia -www.electropedia.org The stand-alone application for consulting the entire The world's leading online dictionary of electronic and bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional documents. Available for PC, Mac OS, Android Tablets languages. Also known as the International and 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 65 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of variety of criteria (reference number, text, technical committee,..).It also givesinformation on IEC publications issued since 2002. Some entries have projects, replaced and withdrawn publications. been collected from earlier publications of IEC TC 37, 77, 86andCISPR. IEc Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published IEC Customer ServiceCentre-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:[email protected]. IEC IEEE IEC/IEEE60780-323 Edition 1.02016-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Nuclearfacilities-Electricalequipmentimportanttosafety-Qualification Installations nucleaires - Equipements electriques importants pour la surete - Qualification INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 27.120.20 ISBN 978-2-8322-3168-5 Warning!Make surethat you obtained thispublicationfroman authorized distributor. Attention!Veuillezvousassurerquevousavezobtenucettepublicationviaundistributeuragree.