EN-61643-21 › Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods

EN-61643-21 - 2010 EDITION - CURRENT -- See the following: BS-EN-61643-21 DIN-EN-61643-21
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Included in this current edition are the following subparts:

 2010 EDITION - Jan. 1, 2010
 AMENDMENT 2 - Jan. 25, 2013


To find similar documents by classification:

29.240 (Power transmission and distribution networks Electricity supply systems in buildings, see 91.140.50)

29.240.10 (Substations. Surge arresters)

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Document Number

EN-61643-21

Revision Level

2010 EDITION

Status

Current

Publication Date

Jan. 1, 2010