This clause of part 1 is replaced by: This standard deals with the safety of electric sauna heating appliances having a rated power input not exceeding 20 kW, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances.NOTESSauna heating appliances may be of the thermal storage type. Sauna heating appliances may consist of more than one sauna heater, provided the heaters are intended to be installed adjacent to each other and are controlled by common controls and protective devices. So far as is practicable, this standard deals with the common hazards presented by appliances which are encountered by all persons in and around the home.This standard does not in general take into account- the use of appliances by young children or infirm persons without supervision;- playing with the appliance by young children.NOTESAttention is drawn to the fact that- for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary;- for appliances intended to be used in tropical countries, special requirements may be necessary;- in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities.This standard does not apply to- appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);- appliances intended to cause perspiration to only a part of the human body;- sweating baths where the head of the user remains outside the heated space;- tents and other collapsible sauna baths.