Current stage: 50.00 Effective date: 19 qer 2026
Next stage: CFDIS Next stage date: 11 sht 2026
Originator: IEC
Owner: TC 65/SC 65A
Type: International Standard
ICS: 25.040.40
IN_DEVELOPMENT IEC 61508-2-1 ED1 50.00 Final text received or FDIS registered for formal approval 19 qer 2026