Current stage: 20.99 Effective date: Apr 24, 2026
Next stage: CD Next stage date: Dec 31, 2026
Originator: IEC
Owner: TC 86/SC 86B
Type: International Standard
ICS: 33.180.20
IN_DEVELOPMENT IEC 61300-3-35 ED4 20.99 WD approved for registration as CD Apr 24, 2026