Current stage: 40.60 Effective date: Feb 13, 2026
Originator: IEC
Owner: TC 37/SC 37A
Type: International Standard
ICS: 29.240.01 29.240.10
PUBLISHED IEC 61643-31:2018 ED1
PUBLISHED IEC 61643-31:2018/COR1:2022 ED1
IN_DEVELOPMENT IEC 61643-31 ED2 40.60 Close of voting Feb 13, 2026