Current stage: 40.20 DIS ballot initiated: 12 weeks Sep 11, 2026
Next stage: PRVC Next stage date : Dec 4, 2026
Originator: IEC
Owner: TC 7
Type: International Standard
ICS: 29.240.20 Power transmission and distribution lines | 29.060.10 Wires
PUBLISHED IEC 61089:1991 ED1
PUBLISHED IEC 62219:2002 ED1
IN_DEVELOPMENT IEC 63559 ED1 40.20 DIS ballot initiated: 12 weeks Sep 11, 2026