What is IEC 61643-21?

International Standard IEC 61643-21 has been prepared by subcommittee 37A: Low-voltagesurge protective devices, of IEC technical committee 37: Surge arresters.

What is Enen 61643-11&IEC 616 43-21?

EN 61643- 11 & IEC 61643-21:2012 Low voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signaling networks – Performance requirements and testing methods

What are the objectives of IEC?

The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.

How does IEC make decisions on technical matters?

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.