At present, power cords have generally entered people's lives, work, and production. Once the power cords have various faults, the losses will be immeasurable. According to various failures of the power cord, experts analyzed the reasons for the failure of the power cord, so that people can better prevent the occurrence of power cord failure.

　　 1. External force damage

　　 External force damage is the most common cause of failure. At present, power cords have been generally laid to every corner of the city. Once a relatively large external force occurs, the power cord will be damaged. For example, people’s common power outages may be due to the fact that the machine failed to grasp the planning during the construction of urban roads and directly cut off the power cord, which led to power outages in some urban areas.

　　 2. Corrosion of the power cord from the external environment

　　With the destruction of the environment, various chemical components in the air will corrode the power cord to varying degrees. Acid rain is one of the corrosive elements. With industrial processing, there is no treatment of various harmful gases, making them discharged into the atmosphere. Sulfur dioxide gas combines with moisture in the air to form sulfuric acid. Once it starts to rain, the rain will slowly corrode the power cord. As time goes on, the power cord will experience various failures due to corrosion.

　　 3. Excessive operation

　　 People will experience fatigue if they work for a long time, and the power cord is no exception. Excessive operation for a long time, the power cord will start to heat up. Heat will accelerate the aging of the power cord, and even breakdown of the insulation. In summer, there are a lot of wire failures. In addition to excessive operation, the overall weather in summer is relatively high, which is not conducive to the long-term operation of the power cord.

　　 In addition to these reasons, the normal aging of the power cord will also affect the normal operation. Knowing the causes of various failures of the power cord helps people make reasonable arrangements and reduce the occurrence of power cord failures.

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