DSF/FprEN 61643-22
Low-voltage surge protective devices -- Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
pending, Most Current
| Organization: | DS |
| Status: | pending |
| Page Count: | 66 |
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 174 lines in the same enclosure (so called multiservice SPDs).
Document History
DSF/FprEN 61643-22
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...
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...