Clause 3 – How to understand the definition of “combined appliance”
combined appliance: appliance incorporating heating elements and motors.
We know that this standard mainly protects against the following five types of dangers, which are electric shock, mechanical damage from moving parts, thermal damage (such as burns), fire damage, chemical and biological damage. Generally speaking, thermal damage is caused by electric heating elements, and mechanical damage is caused by motors. What we are discussing here is the normal situation. For example, we will not discuss the situation where the motor will heat up for the time being. Most household electrical appliances mainly use electric heating elements, motors, or both electric heating elements and motors. The definition of heating appliance, motor-operated appliance and combined appliance given in the standard is to make requirements for them respectively. For example, a hair dryer with heating function, a room heater that uses PTC heating element and motor-driven fan blades to heat the room air are typical combined appliances.
If you are unsure whether a product is a combined appliance, usually clause 6 of the Part 2 standard will give you the answer.