AFNOR - NF EN 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: | AFNOR |
| Publication Date: | 1 November 2001 |
| Status: | active |
| Page Count: | 61 |
| ICS Code (Substations. Surge arresters): | 29.240.10 |
Document History
July 19, 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.
June 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.
NF EN 61643-21
November 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.
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