Some electric heating elements have been in storage for a long time, and when they are used, we do not know whether they can be used. How to test the quality of electric heating element at this time?
This is pretty easy. All you need to do is use one tool, the resistance meter. If there is resistance, the heating element is good. If there is no resistance, the heating element is broken.
Or if the resistance value is normal, there will be electricity leakage when connected to the power supply. It may be that the filling material inside the heating tube absorbs a lot of moisture, leading to the decline of insulation, and it will be ok after a while.
