AFNOR - NF EN 61643-21/A2
Low voltage surge protective devices - Part 21 : surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
active, Most Current
| Organization: | AFNOR |
| Publication Date: | 19 July 2013 |
| Status: | active |
| ICS Code (Substations. Surge arresters): | 29.240.10 |
Document History
NF EN 61643-21/A2
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.
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.