NBN EN 61643-21/A1:2009

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

ACTIVE

About this standard

Languages
English and French
Type
NBN Electro
Status
ACTIVE
Publication date
11 September 2009
Replaced by
NBN EN IEC 61643-21:2026
Amends
NBN EN 61643-21:2002
ICS Code
29.240 (Power transmission and distribution networks)
29.240.10 (Substations. Surge arresters)
Withdrawn Date
Price
€ 142,00

About this training