Current stage: 30.99 Effective date: 2 tet 2026
Next stage: TCDV Next stage date: 30 qer 2027
Originator: IEC
Owner: TC 22/SC 22E
Type: International Standard
ICS: 29.200
IN_DEVELOPMENT IEC 63532 ED1 30.99 CD approved for registration as DIS 2 tet 2026