1、 IEC 61643-352 Edition 1.0 2018-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Components for low-voltage surge protection Part 352:Selection and application principles for telecommunications and signalling network surge isolation transformers(SITs)Composants pour protection par parafoudres basse te
2、nsion Partie 352:Principes de choix et dapplication pour les transformateurs disolement contre les surtensions(SIT)dans les rseaux de signalisation et de tlcommunications IEC 61643-352:2018-01(en-fr)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2018 IEC,Geneva,Switzerland All rights
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