What is the insulation resistance of the electric heating tube
It is recommended to consult our online customer service, because each electric heating tube will be different, calculate it online.
After each electric heating tube is ready, various electrical parameters are tested, one of which is to measure the cold insulation resistance of the electric heating tube. So let's take a look at what does the cold insulation resistance of electric heating tubes mean?
Why should electric heating tubes measure insulation resistance values?
Insulation resistance value is an important parameter indicating the insulation of electric heating tube, under normal circumstances, the larger the insulation resistance value, the better the insulation of the electric heating tube, the insulation resistance value of normal electric heating tube is infinite. The higher the insulation resistance value, the less conductive the surface of the electric heating tube will be, and the safer it will be to use.
After the above introduction, we should know what the cold insulation resistance of the electric heating tube means, the larger the insulation resistance value of the electric heating tube, the less charged the surface of the electric heating tube.
The cold insulation resistance should not be less than 50MΩ during factory inspection, and the thermal insulation resistance at temperature should not be less than 1MΩ.
