Current stage: 20.99 Effective date: Jul 31, 2026
Next stage: CD Next stage date: Dec 25, 2026
Originator: IEC
Owner: TC 47/SC 47D
Type: International Standard
ICS: 31.080.01
IN_DEVELOPMENT IEC 63378-6-2 ED1 20.99 WD approved for registration as CD Jul 31, 2026