1、 IEC 61643-22 Edition 2.0 2015-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Low-voltage surge protective devices Part 22:Surge protective devices connected to telecommunications and signalling networks Selection and application principles Parafoudres basse tension Partie 22:Parafoudres connects au
2、x rseaux de signaux et de tlcommunications Principes de choix et dapplication IEC 61643-22:2015-06(en-fr)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized
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