Current stage: 20.99 Effective date: 14 maj 2021
Next stage: CD Next stage date: 31 dhj 2023
Originator: IEC
Owner: TC 23/SC 23B
Type: International Standard
ICS: 29.120.30
IN_DEVELOPMENT IEC 60884-4 ED1 20.99 WD approved for registration as CD 14 maj 2021