Applies to built in and independent single phase transformers with separate input and output windings for use on a.c. supply up to 1,000 V to 50 Hz or 60 Hz, to stabilise and supply cold cathode tubular lamps (or assemblies of such lamps) having a no load rated output voltage over 1,000 V but not over 10,000 V and meant for electric advertising signs, lighting, light signals and similar purposes. Does not apply to auto transformers and electronic convertors. May serve as a guide for transformers with applications other than those specified in the scope, such as instance transformers for photographic lamps, as long as they are not the subject of a particular IEC standard and their characteristics remain within the framework of those specified in the scope.

NF EN 61050 : 93 AMD 1 96 - Identical

EN 61050 : 1992 AMD 1 1995 - Identical

SN EN 61050 : 1992 AMD 1 1995 - Identical

NF EN 61050 : 93 AMD 1 96 - Identical

BS EN 61050 : 1992 - Identical

I.S. EN 61050:1993 - Identical

DIN EN 61050 : 1994 COR 1 1995 - Identical

BS EN 61050 : 1992 - Identical

SN EN 61050 : 1992 AMD 1 1995 - Identical

DIN EN 61050 : 1994 COR 1 1995 - Identical

I.S. EN 61050:1993 - Identical

DIN EN 61050:1994 - Identical

SN EN 61050:1992 - Identical

DIN EN 61050 (1994-12) - Identical

BS EN 61050:1992 - Identical

IEC 61050 Ed. 1.0 - Identical

I.S. EN 61050:1993 - Identical

NF EN 61050:1993 - Identical

SS EN 61050:1992 - Identical