Current stage: 30.99 Effective date: Aug 7, 2026
Next stage: TCDV Next stage date: Jan 29, 2027
Originator: IEC
Owner: TC 65/SC 65A
Type: International Standard
ICS: 25.040.40
IN_DEVELOPMENT IEC 63662 ED1 30.99 CD approved for registration as DIS Aug 7, 2026