Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signaling networks - Performance requirements and testing methods (Adopted IEC 61643-21:2000, edition 1:2000 consolidated with amendment 1:2008 and amendment 2:2012, with Canadian deviations)
Publication date
2022-02-01
Original language
English,
French
Pages
181
Publication date
2022-02-01
Original language
English,
French
Pages
181
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