GSO IEC 61643-21:2014
IEC 61643-21:2000
Gulf Standard
Current Edition
· Approved on 25 December 2014
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
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IEC 61643-21:2000
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GSO IEC 61643-21:2014 Files
English 111 Pages
Current Edition
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GSO IEC 61643-21:2014 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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