NEN-IEC 61643-21
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
inactive
| Organization: | NEN |
| Publication Date: | 1 December 2000 |
| Status: | inactive |
| Page Count: | 122 |
| ICS Code (Substations. Surge arresters): | 29.240.10 |
scope:
Is applicable to devices for surge protection of telecommunications and signalling etworks against indirect and direct effects of lightning or other transient overvoltages.
Document History
June 1, 2001
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
A description is not available for this item.
NEN-IEC 61643-21
December 1, 2000
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Is applicable to devices for surge protection of telecommunications and signalling etworks against indirect and direct effects of lightning or other transient overvoltages.