Current stage: 20.99 Effective date: 29 sht 2021
Next stage: CD Next stage date: 2 sht 2022
Originator: IEC
Owner: TC 65
Type: International Standard
ICS: 01.040.25 25.040.40
PUBLISHED IEC 60050-351:2013 ED4
PUBLISHED IEC 60050-351:2013/AMD1:2016 ED4
IN_DEVELOPMENT IEC 60050-351 ED5 20.99 WD approved for registration as CD 29 sht 2021