IEC 61643-22
Low-voltage surge protective devices Part 22: Surge protective devices connected to telecommunications and signalling networks Selection and application principles
| Organization: | IEC |
| Publication Date: | 1 November 2004 |
| Status: | inactive |
| Page Count: | 104 |
| ICS Code (Power transmission and distribution networks): | 29.240 |
| ICS Code (Substations. Surge arresters): | 29.240.10 |
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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