Dec 25, 2020
How to confirm the resistance of the heating element?
The resistance value of the electric heating tube is fixed, and when different working voltages are connected, the effect of different electric heating tube power appears, and the same is true for the heating effect. Generally, the smaller the resistance, the larger the wire diameter of the resistance wire. When the voltage is fixed, the current passed by the resistance wire will be larger. When the passing current exceeds the load of the resistance wire, it is prone to breakage and damage. The data indicates the heating tube The resistance is not as small as possible. The appropriate resistance wire should be selected according to the actual situation and to ensure normal use.
How to confirm the resistance of the heating tube:
1. Determine the rated voltage and rated power provided to determine the resistance. Through the formula: voltage * voltage / power = resistance.
2. The surface load of the heating wire should not exceed the standard, generally should not exceed 1.5w/cm2.
When selecting the resistance value of the electric heating tube, it is mainly based on the rated voltage and rated power provided by the customer. At the same time, the surface load bearing capacity of the resistance wire should also be considered. So as to ensure the service life of the electric heating tube.
