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Standard [CURRENT]

NF C61-744-21:2001-11-01

NF EN 61643-21:2001-11-01

Low voltage surge protective devices - part 21 : surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods

German title
Überspannungsschutzgeräte für Niederspannung - Teil 21: Übesrpannungsschutzgeräte für den Einsatz in Telekommunikations- und signalverarbeitenden Netzwerken - Leistungsanforderungen und Prüfverfahren
Publication date
2001-11-01
Original language
French
Pages
61

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Publication date
2001-11-01
Original language
French
Pages
61

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Replacement amendments

This document has been modified by: NF C61-744-21/A1:2009-06-01; NF EN 61643-21/A1:2009-06-01 , NF C61-744-21/A2:2013-07-19; NF EN 61643-21/A2:2013-07-19

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