NEN - NPR-IEC-CLC/TS 61643-22
Low voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 July 2007 |
| Status: | inactive |
| Page Count: | 154 |
| 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.
Document History
NPR-IEC-CLC/TS 61643-22
July 1, 2007
Low voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
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...