NA 022
DKE Deutsche Kommission Elektrotechnik Elektronik Informationstechnik in DIN und VDE
Norm
[AKTUELL]
IEC 61643-21 Edition 1.2
IEC 61643-21 Edition 1.2
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Titel (englisch)
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods