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IEC_62305-2_Ed1_81-241A.pdf

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1、81/241A/CDVCOMMITTEE DRAFT FOR VOTE(CDV)PROJET DE COMIT POUR VOTE(CDV)Project numberIEC 62305-2,Ed.1Numro de projetIEC/TC or SC:TC 81CEI/CE ou SC:Date of circulationDate de diffusion2004-01-16(2004-01-09)Closing date for voting(Votingmandatory for P-members)Date de clture du vote(Voteobligatoire pou

2、r les membres(P)2004-06-11*Titre 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

3、 documents81/213/CD 81/222A/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 LEUR

4、S 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 THEIRCO

5、MMENTS,NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OFWHICH THEY ARE AWARE AND TO PROVIDE SUPPORTINGDOCUMENTATION.Titre:CEI 62305-2,Ed.1:Protection contre lafoudre-Partie 2:Evaluation du risqueTitle:IEC 62305-2,Ed.1:Protection againstlightning-Part 2:Risk managementNote dintroductionIntroductory noteT

6、he French version of the CDV will be circulatedlater.*The closing date remains unchanged.This document cancels and replaces document 81/241/CDV due to modifications on the coverpage.This document has been prepared based on the decisions taken at the last TC 81 meeting,(see 81/236/RMitem 8).The simpl

7、ified software for risk management(version 3.0.3)is attached in the accompanying zip file to theCDV.Risk assessment performed with the help of this software will be fully in line with procedure and requirements ofIEC 62305-2.Please note that support for the software will be given via the TC81 Secret

8、ariat.Consequently allquestions related to the software covering installation,requests for more information etc should beaddressed to:G.B.LO PIPARO,lopiparorai.it C.MAZZETTI,mazzettielettrica.ing.uniroma1.itATTENTIONCDV soumis en parallle au vote(CEI)et lenqute(CENELEC)ATTENTIONParallel IEC CDV/CENE

9、LEC EnquiryCopyright 2004 International Electrotechnical Commission,IEC.All rights reserved.It is permitted todownload this electronic file,to make a copy and to print out the content for the sole purpose of preparingNational Committee positions.You may not copy or mirror the file or printed version

10、 of the document,orany part of it,for any other purpose without permission in writing from IEC.62305-2 Ed.1/CDV IEC 2 ContentsFOREWORD4INTRODUCTION51.Scope and object62.Normative references63.Terms and definitions64.Explanation of terms104.1 Damages and loss10 4.1.1 Source of damage10 4.1.2 Types of

11、 damage104.1.3 Types of loss114.2 Risk and risk components124.2.1 Risk124.2.2 Risk components for a structure due to flashes to the structure134.2.3 Risk component for a structure due to a flash near the structure134.2.4 Risk components for a structure due to flashes to a service13connected to the s

12、tructure4.2.5 Risk component for a structure due to a flash near a service13connected to the structure4.2.6 Risk components for a service due to flashes to the service144.2.7 Risk component for a service due to a flash near the service144.2.8 Risk components for a service due to flashes to the struc

13、ture14to which the service is connected4.3 Compositions of risk components related to the structure144.3.1 Composition of risk components with reference to the source15of damage(Table 7)4.3.2 Composition of risk components with reference to the type of15damage(Table 7)4.4 Compositions of risk compon

14、ents related to the services164.4.1 Composition of risk components with reference to the source16 of damage(Table 9)4.4.2 Composition of risk components with reference to the type of17damage(Table 9)4.5 Factors influencing the risk components174.5.1 Factors influencing the risk components in a struc

15、ture174.5.2 Factors influencing the risk components in a service1862305-2 Ed.1/CDV IEC 3 5.Risk management185.1 Basic procedure185.2 Structure to be considered for risk assessment195.3 Service to be considered for risk assessment195.4 Tolerable risk RT195.5 Procedure to evaluate the need of protecti

16、on195.6 Procedure to evaluate the economic convenience of protection215.7 Protection measures22 5.8 Selection of protection measures226.Assessment of risk components for structures246.1 Basic equation24 6.2 Assessment of the risk components due to flashes to the structure256.3 Assessment of the risk component due to flash near the structure256.4 Assessment of risk components due to flashes to incoming line256.5 Assessment of risk component due to flash near an incoming line256.6 Summary of risk

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