5 reasons that can easily cause cable failures

1. Chemical corrosion. This is closely related to the soil in the area where the cable is buried. If the cable is directly buried in an area with acid-base effects, the protective layer will be chemically corroded by acid-base reactions. After a period of time, the insulation ability will decrease significantly, which is a time when accidents are prone to occur.
2. Long term overloaded work. I believe everyone has had the experience that some sockets with poor quality on the market, when we buy them and use them at home, will heat up after a period of time, including cables. It's not that poor cable quality causes problems. When current passes through a conductor, it often generates a certain amount of heat, causing the cable temperature to rise. But these are all within the prescribed range. If the cable is overloaded for a long time, the current will increase, causing the temperature of the cable to exceed its capacity, which will lead to a rapid decrease in the insulation ability of the cable and the occurrence of accidents.
3. Cable joint malfunction. The cable joint is completely determined by people. If the construction personnel make mistakes during the joint, resulting in loose crimping and other phenomena, it will lead to a decrease in the insulation ability of the cable, thereby causing accidents.
4. External environment. The external environment mainly consists of two parts, one is the natural environment, humidity and temperature. It goes without saying that temperature and humidity directly affect the insulation ability of cables. Another factor is manpower, such as carrying out civil construction above the land where cables are buried, which can also cause significant damage to the insulation capacity of the cables. If the damage is severe, it can directly lead to accidents and endanger the safety of others' lives.
5. The cable is damp. This mainly occurs at cable joints, where unqualified cable joints or joints made in humid environments can cause the cables to become damp. When we use wires, we usually take care not to let them come into contact with water. As we all know, the consequences of cable moisture can be imagined.