AENOR UNE-EN 61643-21
Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods.
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| Organization: | AENOR |
| Publication Date: | 28 October 2002 |
| Status: | active |
| Page Count: | 56 |
| ICS Code (Substations. Surge arresters): | 29.240.10 |
Document History
May 22, 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.
November 18, 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.
AENOR UNE-EN 61643-21
October 28, 2002
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.