Published
Replaces IEC 60050(901) (1973), 60050(901A) (1975) and 60050(901B) (1978). It has the status of a horizontal standard in accordance with IEC Guide 108.
Replaces
IEC 60050-901:1973 ED1
Replaces
IEC 60050-901A:1975 ED1
Replaces
IEC 60050-901B:1978 ED1
Replaces
IEC 60125:1961/AMD1:1965 ED1
Replaces
IEC 60125:1961/AMD2:1968 ED1
Replaces
IEC 60125:1961 ED1
PUBLISHED
IEC 60050-221:1990 ED1
60.60
Standard published
Oct 15, 1990
Amended by
IEC 60050-221:1990/AMD4:2020 ED1
Amended by
IEC 60050-221:1990/AMD1:1993 ED1
Amended by
IEC 60050-221:1990/AMD2:1999 ED1
Amended by
IEC 60050-221:1990/AMD3:2007 ED1
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