After each heating element is finished, various electrical parameters should be tested, one of which is to measure the cold insulation resistance . So let's look at what is the cold insulation resistance of the electric heating element?
Insulation resistance value is divided into cold insulation resistance value and hot insulation resistance value:
Cold insulation resistance means measuring the value of the heater element by insulation resistance tester when it is not heated.
The thermal insulation resistance refers to measure the value o when it is heated.
The insulation resistance value is an important parameter indicating the insulation. Under normal circumstances, the greater the insulation resistance value, the better the insulation. The greater the insulation resistance value, the less conductive the surface of the electric heating element will be, and the safer it will be to use.
