Objavljen
This standard specifies performance requirements for ballasts excluding resistance types for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with pre-heated cathodes operated with or without a starter or starting device and having rated wattages, dimensions and characteristics as specified in IEC 60081 and 60901. It applies to complete ballasts and their component parts such as resistors, transformers and capacitors.
POVUČEN
IEC 60921:1988 ED1
POVUČEN
IEC 60921:1988/AMD1:1990 ED1
POVUČEN
IEC 60921:1988/AMD2:1994 ED1
OBJAVLJEN
IEC 60921:2004 ED2
60.60
Standard objavljen
9. 8. 2004.
OBJAVLJEN
IEC 60921:2004/AMD1:2006 ED2