Current stage: 20.99 Effective date: Jul 17, 2026
Next stage: CD Next stage date: Sep 18, 2026
Originator: IEC
Owner: TC 116
Type: International Standard
ICS: 65.060.70
IN_DEVELOPMENT IEC 62841-4-15 ED1 20.99 WD approved for registration as CD Jul 17, 2026