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in stockReleased: 2002-10-28
UNE EN 61643-21:2002
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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English PDF
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134.59 USD
English Hardcopy
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134.59 USD
Spanish PDF
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134.59 USD
Spanish Hardcopy
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134.59 USD
| Standard number: | UNE EN 61643-21:2002 |
| Pages: | 65 |
| Released: | 2002-10-28 |
| Status: | Standard |
| Pages (Spanish): | 56 |
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