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Standards Worldwide
Standards Worldwide
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Standard [CURRENT]

SN EN 61643-21/A1:2009-04

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: Überspannungsschutzgeräte für den Einsatz in Telekommunikations- und signalverarbeitenden Netzwerken - Leistungsanforderungen und Prüfverfahren
Publication date
2009-04
Original language
German
Pages
25

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Publication date
2009-04
Original language
German
Pages
25

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