Current stage: 30.99 Effective date: 21 mar 2025
Next stage: TCDV Next stage date: 31 mar 2025
Originator: IEC
Owner: TC 91
Type: International Standard
ICS: 25.040.01 35.240.50
IN_DEVELOPMENT IEC 63569 ED1 30.99 CD approved for registration as DIS 21 mar 2025