ÖVE/ÖNORM EN 61643-21:2013-08

Действует

Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods (IEC 61643-21:2000 + Corr.:2001 + A1:2008, mod. + A2:2012) (english version)

Описание Изменения Ссылки Версии

This International Standard 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 voltages up to 1 000 V
(r.m.s.) a.c. and 1 500 V d.c.

ICS

29.240.10 Substations. Surge arresters / Подстанции. Защитные разрядники

29.240 Power transmission and distribution networks / Сети электропередач и распределительные сети

29.120.50 Fuses and other overcurrent protection devices / Плавкие предохранители и другие защитные устройства при перегрузках