Current stage: 40.99 Effective date: Oct 17, 2025
Next stage: DECFDIS Next stage date: Oct 31, 2025
Originator: IEC
Owner: TC 91
Type: International Standard
ICS: 25.040.01 35.240.50
IN_DEVELOPMENT IEC 63569 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Oct 17, 2025