Current stage: 40.00 Effective date: 31 korr 2026
Next stage: CCDV Next stage date: 18 sht 2026
Originator: IEC
Owner: TC 47
Type: International Standard
ICS: 31.080.99
IN_DEVELOPMENT IEC 63551-1 ED1 40.00 DIS registered 31 korr 2026