CEI EN 61643-21/A1:2010
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Low voltage surge protective devices Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Amendment of
Available format(s)
Hardcopy , PDF
Superseded date
15-01-2021
Language(s)
English
Published date
01-08-2010
Publisher
This variant introduces changes to the articles from the first to the sixth and adds annexes D and E.
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