1、 NORME INTERNATIONALE?INTERNATIONAL STANDARD?Premire dition First edition 2003-11?!?#?#?$?%?&?&?(?!?)?%?*!?#?%?(?+?!?,?(?-?%?(?&?)%?(?*!?Numro de rfrence Reference number CEI/IEC 61249-2-21:2003 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY
2、 BUREAU.Numrotation des publications Depuis le 1er janvier 1997,les publications de la CEI sont numrotes partir de 60000.Ainsi,la CEI 34-1 devient la CEI 60034-1.Editions consolides Les versions consolides de certaines publications de la CEI incorporant les amendements sont disponibles.Par exemple,l
3、es numros ddition 1.0,1.1 et 1.2 indiquent respectivement la publication de base,la publication de base incorporant lamendement 1,et la publication de base incorporant les amendements 1 et 2.Informations supplmentaires sur les publications de la CEI Le contenu technique des publications de la CEI es
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9、IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorpor
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14、ave any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.NORME INT
15、ERNATIONALE?INTERNATIONAL STANDARD?Premire dition First edition 2003-11?!?#?#?$?%?&?&?(?!?)?%?*!?#?%?(?+?!?,?(?-?%?(?&?)%?(?*!?IEC 2003 Droits de reproduction rservs?Copyright-all rights reserved Aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et p
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