Current stage: 20.99 Effective date: Feb 3, 2023
Next stage: CD Next stage date: Apr 30, 2024
Originator: IEC
Owner: TC 15
Type: International Standard
ICS: 29.035.10
PUBLISHED IEC 60554-3-1:1979 ED1
ABANDON IEC 60554-3-1/AMD1 ED1
IN_DEVELOPMENT IEC 60554-3-1 ED2 20.99 WD approved for registration as CD Feb 3, 2023