Low voltage surge protective devices-Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods

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Hardcopy , PDF

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English

Published date

01-02-2026

Publisher

Comitato Elettrotecnico Italiano

€198.45

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This Standard applies to surge protectors against the indirect and direct effects of lightning or other transient surges.

Committee	CT 37
DocumentType	Test Method
ISBN	978-2-8327-0741-8
Pages	94
PublisherName	Comitato Elettrotecnico Italiano
Status	Current
Supersedes	CEI EN 61643-21 : 2003 CEI EN 61643-21/A1:2010 CEI EN 61643-21/A2:2014 CEI EN 61643-21/A1:2011

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CEI EN IEC 61643-21:2026