Current stage: 20.99 Effective date: Nov 7, 2025
Next stage: CD Next stage date: Mar 26, 2027
Originator: IEC
Owner: TC 59/SC 59L
Type: International Standard
ICS: 97.040.20
IN_DEVELOPMENT IEC 63696 ED1 20.99 WD approved for registration as CD Nov 7, 2025