IEC 61643-21:2000+A1:2008 is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c. The contents of the corrigendum of March 2001 have been included in this copy. This consolidated version consists of the first edition (2000) and its amendment 1 (2008). Therefore, no need to order amendment in addition to this publication.
Document identifier
IEC 61643-21 Ed. 1.1 b:2009
Title
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods CONSOLIDATED EDITION
IEC Category
SC 37A: Low-voltage surge protective devices
Publication date
2009-04-29
International Relationship
| Price |
645 vnd |
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