OS GSO IEC 61643-22:2014
IEC 61643-22:2004
Omani Standard
Current Edition
·
Approved on
25 December 2014
Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
OS GSO IEC 61643-22:2014 Files
English
95 Pages
Current Edition
Reference Language
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OS GSO IEC 61643-22:2014 Scope
This part of IEC 61643 describes the principles for the selection, operation, location and
coordination of SPDs connected to telecommunication and signalling networks with nominal
system voltages up to 1 000 V r.m.s. a.c. and 1 500 V d.c.
This standard also addresses SPDs that incorporate protection for signalling lines and power
lines in the same enclosure.
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