BS EN 55104:1995 Electromagnetic compatibility. Immunity requirements for household appliances, tools and similar apparatus. Product family standard
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This standard deals with the electromagnetic immunity of appliances and similar apparatus for
household and similar purposes that use electricity as well as electric toys and electric tools, the rated voltage of the apparatus being not more than 250 V for single-phase apparatus to be connected to phase and neutral, and 480 V for other apparatus.
Apparatus may incorporate motors, heating elements or their combination, may contain electric or
lectronic circuitry, and may be powered by the mains, by batteries or any other electrical power source.
Apparatus not intended for household use but which nevertheless may require the immunity level, such apparatus intended to be used by laymen in shops, in light industry and on farms, are within the
cope of this standard, as far as they are included in EN 55014, and in addition:
- microwave ovens for domestic use and catering;
- cooking hobs and cooking ovens, heated by means of r.f. energy, (single- and multiple-zone)
induction cooking appliances;
- UV and IR radiators for personal care.
1.2 This standard does not apply to:
- equipment for general lighting purposes;
- apparatus designed exclusively for heavy industrial purposes;
- apparatus intended to be part of the fixed electrical installation of buildings (e.g. fuses, circuit
breakers, cables and switches);
- apparatus intended to be used in locations where special electromagnetic conditions prevail, such
as the presence of high e.m. fields (e.g. in the vicinity of a broadcast transmitting station) or where
high pulses occur on the power network (e.g. in a power generator station);
- radio and television receivers, audio and video equipment and electronic music instruments;
medical electrical appliances;
- personal computers and similar equipment;
- radio transmitters;
- apparatus designed to be used exclusively in vehicles.
1.3 Immunity requirements in the frequency range 0 Hz to 400 GHz are covered.
1.4 The effects of electromagnetic phenomena relating to the safety of apparatus are excluded from
is standard and are covered by other standards, e.g. EN 60335.
Abnormal operation of the apparatus (e.g. simulated faults in the electric circuitry for testing purposes) are not taken into consideration.
NOTE: Attention is drawn to the fact that additional requirements may be necessary for apparatus intended to be used on board ships or aircraft.
