Resistance wire is the most common heating element. It generates heat after being energized and converts electrical energy into functional alloy material. Its maximum working temperature can reach more than 1,000 degrees Celsius. Here is going to introduce how to identify the quality of resistance wire.
First of all, it is necessary to know that the resistance heating wire reaches a red-hot state, which is related to the organization of the resistance heating wire.
Cut a section of heating wire and use an 8V 1A transformer. The resistance value of the heating wire should not be less than 8 ohms, otherwise the transformer will be easily burned.
If you use a 12V 0.5A transformer, the resistance of the heating wire should not be less than 12 ohms, otherwise the transformer will be easily burned out. If you let the heating wire reach a red-hot state( the redder the better), you should use an 8V 1A transformer, which has a higher power than a 12V 0.5A transformer. In this way, we can also better test the quality of the resistance heating wire.
