The terminal wire harness is mainly used to connect and transmit current among multiple circuits. The internal conductors of the terminal wire harness are mainly divided into tinned copper and bare copper. For electric appliances, the quality directly determines the performance of the electric appliance. If the quality is poor, it will seriously affect the normal use of the electric appliances. Let's analyze the reason why the lower terminal wire is not powered?
1. Insulator moisture: it may be caused by improper use or construction, resulting in dmoisture insulation layer, which further leads to abnormal energization of the wiring harness. In some humid environments, the resonance generated when the wiring harness is used and cracks occur,, and water molecules will enter more easily, so the terminal wire harness will be affected by moisture. In this case, we should strengthen the insulation layer of the wire harness in time, or consider replacing the wire harness in serious cases.
2. Excessive voltage: excessive voltage causes the breakdown of the electrical layer, resulting in the failure of the wiring harness to energize.
3. Insulation aging: The aging and cracking of the insulator results in the wire harness not being energized properly, because during a long period of use, it will result in poor heat dissipation or overload of the insulator. For safety reasons, the terminal wire harness must be replaced in time.
4. Damaged: In the process of using the terminal wire harness, due to improper operation, the wire harness was damaged, causing the wire harness to be bent too much or other symptoms that cause it not to be energized normally. Electronic wires should be checked first and then repaired. If they cannot be repaired, the wiring harness should be replaced.