Current stage: 30.99 Effective date: Sep 19, 2025
Next stage: TCDV Next stage date: Jan 16, 2026
Originator: IEC
Owner: TC 47/SC 47F
Type: International Standard
ICS: 31.080.99
IN_DEVELOPMENT IEC 62047-56 ED1 30.99 CD approved for registration as DIS Sep 19, 2025