50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks Mar 7, 2025
CENELEC
CLC/TC 37A Low voltage surge protective devices
European Norm
29.240.10 Substations. Surge arresters
Draft
IN_DEVELOPMENT
FprEN IEC 61643-11:2025
50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Mar 7, 2025
IN_DEVELOPMENT
FprEN IEC 61643-11:2025/FprAA:2025