Current stage: 20.99 Effective date: 21 qer 2024
Next stage: CD Next stage date: 20 dhj 2024
Originator: IEC
Owner: TC 47/SC 47D
Type: International Standard
ICS: 31.080.01
IN_DEVELOPMENT IEC 63378-4 ED1 20.99 WD approved for registration as CD 21 qer 2024