Current stage: 40.99 Effective date: Jun 12, 2026
Next stage: DECFDIS Next stage date: Jul 24, 2026
Originator: IEC
Owner: TC 90
Type: International Standard
ICS: 29.050
IN_DEVELOPMENT IEC 61788-28 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Jun 12, 2026