The first reason is that the quality of the wires at home is not very good, and there is leakage during the contact process. The second reason is that the total electricity consumption at home is too high. exceeding the limit. It is compound, so it will taste mushy.
Since the cable has resistance, the current flowing through the cable will produce a thermal effect. The smaller the wire diameter, the greater the resistance value of the cable and the greater the thermal effect. of the cable. Online Under certain cable heat dissipation conditions, the higher the current, the lower the required resistance. The wires were charred or even burned, but the air switch did not trip. This is very abnormal.
Common knowledge on the safe use of electricity:
1. Avoid overloading the power cord. US power cordsold and aging parts must be replaced in time to avoid accidents. .
2. The electrical box leakage protection switch and air switch should be reasonably configured to ensure the protection of people and household appliances.
3. Know and understand the main power switch and learn how to turn off the main power in an emergency.
4. Do not touch or test the inside of the power outlet with your hands or conductive objects (such as wires, nails, pins and other metal products).
5. The power plug should be unplugged after using the electrical appliance. Do not pull the wire too hard when plugging or unplugging the power plug to avoid damage to the insulation layer of the wire and causing electric shock. If the insulation layer of the wire is damaged, replace it in time.