Revidert
IEC 60947-2:1989/COR1:1989
IEC 60947-2:1989/COR2:1990
IEC 60947-2:1989 ED1
IEC 60947-2:1989/AMD1:1992 ED1
IEC 60947-2:1989/AMD2:1993 ED1
IEC 60947-2:1995/COR1:1997
IEC 60947-2:2003 ED3