NORME INTERNATIONALE INTERNATIONAL STANDARD CEI 1EC 50(161) Premire dition First edition 1990-08 Vocabulaire Electrotechnique International Chapitre 161 : Compatibilit lectromagntique International Electrotechnical Vocabulary Chapter 161 : Electromagnetic compatibility 161: 1 EC Numro de rfrence Reference number CEI/I 50(161): 1990