BH GSO IEC 61643-21:2016
IEC 61643-21:2000
Bahraini Standard
Current Edition
·
Approved on
08 February 2016
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
BH GSO IEC 61643-21:2016 Files
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BH GSO IEC 61643-21:2016 Scope
This International Standard is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages.
The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.
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