Current stage: 40.99 Effective date: 9 jan 2026
Next stage: DECFDIS Next stage date: 16 jan 2026
Originator: IEC
Owner: TC 124
Type: International Standard
ICS: 59.080.80
IN_DEVELOPMENT IEC 63517 ED1 40.99 Full report circulated: DIS approved for registration as FDIS 9 jan 2026