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IEC 61643-21 AMD 1:2008-04

Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods; Amendment 1

German title: Überspannungsschutzgeräte für Niederspannung - Teil 21: Überspannungsschutzgeräte für den Einsatz in Telekommunikations- und signalverarbeitenden Netzwerken - Leistungsanforderungen und Prüfverfahren; Änderung 1
Publication date: 2008-04
Original language: English, French
Pages: 41

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