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in stockReleased: 2009-11-18
UNE EN 61643-21:2002/A1:2009
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Pararrayos de baja tensión. Parte 21: Pararrayos conectados a redes de telecomunicaciones y de transmisión de señales. Requisitos de funcionamiento y métodos de ensayo.
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| Standard number: | UNE EN 61643-21:2002/A1:2009 |
| Pages: | 24 |
| Released: | 2009-11-18 |
DESCRIPTION
This standard UNE EN 61643-21:2002/A1:2009 Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods is classified in these ICS categories:
- 29.240.10