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Homepage>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
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sklademVydáno: 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

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

Dispositivos de protección contra sobretensiones transitorias de baja tensión. Parte 21: Dispositivos de protección contra sobretensiones transitorias conectados a redes de telecomunicaciones y de transmisión de señales. Requisitos de funcionamiento y métodos de ensayo.

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Označení normy:UNE EN 61643-21:2002/A1:2009
Počet stran:24
Vydáno:2009-11-18
Status:Změna
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
Categories:
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