NEN-EN-IEC 61643-21
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
active
| Organization: | NEN |
| Publication Date: | 1 September 2001 |
| Status: | active |
| Page Count: | 126 |
| ICS Code (Power transmission and distribution networks): | 29.240 |
| 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
February 1, 2013
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.
May 1, 2009
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-EN-IEC 61643-21
September 1, 2001
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.