Current stage: 20.99 Effective date: 1 nën 2024
Next stage: CD Next stage date: 31 tet 2025
Originator: IEC
Owner: TC 91
Type: International Standard
ICS: 31.180 31.190
IN_DEVELOPMENT IEC 63609-3 ED1 20.99 WD approved for registration as CD 1 nën 2024