IEC_62305-1_216_CDV.pdf

81/216/CDVCOMMITTEE DRAFT FOR VOTE(CDV)PROJET DE COMIT POUR VOTE(CDV)Project numberIEC 62305-1,Ed.1Numro de projetIEC/TC or SC:TC 81CEI/CE ou SC:Date of circulationDate de diffusion2003-05-09Closing date for voting(Votingmandatory for P-members)Date de clture du vote(Voteobligatoire pour les membres(P)2003-10-10Titre du CE/SC:Protection contre la foudreTC/SC Title:Lightning protectionSecretary:Dr.Ing.G.B.Lo Piparo(Italy)Secrtaire:E-mail:lopiparorai.itAlso of interest to the following committeesIntresse galement les comits suivantsSC 37A,TC 64,TC 77Supersedes documentsRemplace les documents81/194/CD 81/215/CCFunctions concernedFonctions concernesSafetyScuritEMCCEMEnvironmentEnvironnementQuality assuranceAssurance qualitCE DOCUMENT EST TOUJOURS LTUDE ET SUSCEPTIBLE DEMODIFICATION.IL NE PEUT SERVIR DE RFRENCE.LES RCIPIENDAIRES DU PRSENT DOCUMENT SONT INVITS PRSENTER,AVEC LEURS OBSERVATIONS,LA NOTIFICATION DESDROITS DE PROPRIT DONT ILS AURAIENT VENTUELLEMENTCONNAISSANCE ET FOURNIR UNE DOCUMENTATION EXPLICATIVE.THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE.ITSHOULD NOT BE USED FOR REFERENCE PURPOSES.RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT,WITH THEIRCOMMENTS,NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OFWHICH THEY ARE AWARE AND TO PROVIDE SUPPORTINGDOCUMENTATION.Titre:CEI 62305-1,Ed.1:Protection contre lafoudre Partie 1:Principes gnrauxTitle:IEC 62305-1,Ed.1:Protection againstlightning Part 1:General principlesNote dintroductionIntroductory noteATTENTIONCDV soumis en parallle au vote(CEI)et lenqute(CENELEC)ATTENTIONParallel IEC CDV/CENELEC EnquiryFORM CDV(IEC)2002-08-09Copyright 2003 International Electrotechnical Commission,IEC.All rights reserved.It ispermitted to download this electronic file,to make a copy and to print out the content for the solepurpose of preparing National Committee positions.You may not copy or mirror the file orprinted version of the document,or any part of it,for any other purpose without permission inwriting from IEC.62305-1 Ed.1/CDV IEC 2 CONTENTS1.Scope and Object52.Normative References53.Terms and Definitions54.Lightning Current Parameters105.Damages due to Lightning105.1 Damages to a Structure105.2 Damages to a Service115.3 Types of Loss126.Need and Economic Convenience for Lightning Protection126.1 Need for Lightning Protection126.2 Economic Convenience of Lightning Protection137.Protection Measures137.1 Protection Measures to Reduce Injuries of Living Beings due to Touch And Step Voltages137.2 Protection Measures to Reduce Physical Damages137.3 Protection Measures to Reduce Failures of Electrical and Electronic Systems147.4 Protection Measures Selection148.Basic Criteria for Protection of Structures and Services148.1 Lightning Protection Levels(LPL)158.2 Lightning Protection Zones(LPZ)158.3 Protection of Structures16Annex A(Informative)Parameters of Lightning Current26Annex B(Informative)Time Functions of the Lightning Current for Analysis Purposes35Annex C(Informative)Simulation of the Lightning Current for Test Purposes40Annex D(Informative)Test Parameters Simulating the Effects of Lightning on LPS Components4562305-1 Ed.1/CDV IEC 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_Protection against lightningPart 1:General principlesFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end and in addition to other activities,the IEC publishes International Standards.Their preparation isentrusted to technical committees;any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work.International,governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation.The IEC collaborates closely with the International Organizationfor Standardization(ISO)in accordance with conditions determined by agreement between the twoorganizations.2)The formal decisions or agreements of the IEC on technical matters express,as nearly as possible,aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3)The documents produced have the form of recommendations for international use and are published in the formof standards,technical specifications,technical reports or guides and they are accepted by the NationalCommittees in that sense.4)In order to promote international unification,IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards.Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5)The IEC provides no marking procedure to indicate its approval and cannot