IEC IEC 62793 Edition 2.02020-09 INTERNATIONAL STANDARD NORME NTERNATIONALE colour inside Thunderstorm warning systems - Protection against lightning Systemes d'alerte aux orages - Protection contre la foudre IEC 62793:2020-09(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2020 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form orbyanymeans,electronicormechanical, including photocopyingand microfilm,without permission inwritingfrom eitherIEC orIEC's memberNational Committee inthecountry of the requester.If youhave any questions about IEC your local IEC member National Committee for further information. ni utilisée sous quelque forme que ce soit et par aucun procede, électronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord écrit de I'lEc ou du Comite national de I'lEC du pays du demandeur. Si vous avez des questions sur le copyright de I'lEC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez lescoordonnées ci-apresoucontactezleComiténational de l'lECdevotrepaysderésidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC International Standards forall 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 corrigendumoran amendment might havebeenpublished. IECpublications search-webstore.iec.ch/advsearchform IEC online collection-oc.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the publications previews. With a subscription you will always variety of criteria(referencenumber,text,technical committee, ...). It also gives information on projects, replaced haveaccesstouptodatecontenttailored toyourneeds and withdrawn publications. Electropedia - www.electropedia.org IEc Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications. Just Published containing more than 22 000 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in 18 additional languages. once a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. 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:[email protected] A propos de I'IEC La Commission Electrotechnique Internationale (lEC)est la premiere organisation mondiale qui elabore et publie des Normes internationales pourtoutce quiatraitaI'électricite,ai'electronique etauxtechnologies apparentées Apropos despublicationsIEc Le contenutechnique 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. RecherchedepublicationsIEC - IEC online collection-oc.iec.ch webstore.iec.ch/advsearchform Decouvrez notre puissant moteur de recherche et consultez La recherche avancee permet de trouver des publications IEC gratuitementtousles apercus despublications.Avecun en utilisant differents criteres (numero de reference,texte, abonnement, vous aurez toujours acces a un contenu a jour comite d'etudes, ...). Elle donne aussi des informations sur adaptéavosbesoins. les projets et les publications remplacees ou retirees. Electropedia - www.electropedia.org IEc Just Published - webstore.iec.ch/justpublished Le premier dictionnaire d'electrotechnologie en ligne au Restez informe sur les nouvelles publications IEC. Just monde, avec plus de 22 000 articles terminologiques en Published detaille nouvelles publications parues. anglais et en francais, ainsi