Current stage: 40.99 Effective date: Aug 15, 2025
Next stage: DECFDIS Next stage date: Aug 15, 2025
Originator: IEC
Owner: TC 94
Type: International Standard
ICS: 29.120.70
IN_DEVELOPMENT IEC 63522-41 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Aug 15, 2025