Identification of power supply switch positions for heating equipment with
exposed heating elements
[Basic requirements]
Stationary or fixed heating equipment with exposed heating elements, e.g. electric stoves and ranges, shall be of such a construction that the on/off state of the power switch is clearly discernible in order to prevent hazards such as the emission of smoke, ignition, fire and burns.
[Design standards]
The on/off state of the power switch shall be discernible by the position of its knob, color display, illumination, audible indication, etc.
[Criteria]
Compliance is determined by visual and audio inspections.