Current stage: 20.99 Effective date: Dec 26, 2025
Next stage: CD Next stage date: Jan 30, 2026
Originator: IEC
Owner: TC 46/SC 46F
Type: International Standard
ICS: 33.120.30
IN_DEVELOPMENT IEC 61169-1-10 ED1 20.99 WD approved for registration as CD Dec 26, 2025