Current stage: 40.99 Effective date: Oct 30, 2026
Next stage: DECFDIS Next stage date: Dec 18, 2026
Originator: IEC
Owner: PC 130
Type: International Standard
ICS: 11.040.01
IN_DEVELOPMENT IEC 63590-1 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Oct 30, 2026