Current stage: 20.99 Effective date: Jul 3, 2026
Next stage: CD Next stage date: Mar 5, 2027
Originator: IEC
Owner: PC 130
Type: International Standard
ICS: 11.040.01
IN_DEVELOPMENT IEC 63590-2-2 ED1 20.99 WD approved for registration as CD Jul 3, 2026