Current stage: 20.99 Effective date: Jun 19, 2026
Next stage: CD Next stage date: Nov 6, 2026
Originator: IEC
Owner: TC 62/SC 62C
Type: International Standard
ICS: 11.040.50
IN_DEVELOPMENT IEC 63745 ED1 20.99 WD approved for registration as CD Jun 19, 2026