This standard deals with the safety of electric massage appliances for household and similar purposes, their rated voltages being not more than 250 V for single phase appliances and 480 V for other appliances. Appliances not intended for normal use but that nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. As far as practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take onto account: - the use of applian