BS EN 60335-2-40. Household and similar electrial appliances. Safety. Part 2-40. Particular Requirements for electrical heat pumps, air-conditioners and dehumidifiers|Electrical household appliances, Household equipment, Electrical safety, Protected electrical equipment, Safety measures, Heat pumps, Air conditioners, Air-conditioning systems, Dehumidifiers, Air treatment devices, Commercial, Industrial, Agricultural equipment, Rated voltage, Classification systems, Marking, Instructions for use, Rated frequencies, Heating equipment, Temperature-rise limit, Performance testing, Clearance distances, Temperature, Leakage currents, Watertightness tests, Electrical testing, Corrosion resistance