IEC 61643-21 Ed. 1.0 b:2000, Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling ... Performance requirements and testing methods
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Book Details
Author(s)IEC TC/SC 37A
ISBN / ASINB000Y2LUDA
ISBN-13978B000Y2LUD0
MarketplaceGermany 🇩🇪
Description ▲
Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lithning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.