Why the power cable fails and how it should be handled after a fault occurs, the power cable is an indispensable device in the daily transmission and distribution links, and the burden of the transmission power is assumed to be residents and industrial power due to the long route and wide range of use. Important equipment. However, in daily work and life, power cables often fail, resulting in large-scale power outages, causing considerable problems for the people's production and life. What are the main causes of power cable faults and the solutions to them?
First of all, cable overheating is the main cause of cable faults. The main cause of cable overheating is the internal heating of the air gap, resulting in carbonization of the insulation. In addition, the installation location of the cable may be unreasonable and the cable may not be cooled, resulting in overheating of the cable. Once the cable is overheated, insulation aging and carbonization will be aggravated, resulting in cable damage and failure.
Followed by mechanical damage, due to the role of external forces, making the cable bending deformation or fracture, leading directly to the occurrence of cable failures.
Another very important reason is that the intermediate connector or terminal of the cable has an unreasonable design and the manufacturing process is not up to standard. After this type of cable has been used for a long time, impurities such as dust and particles on the cable surface will wait for opportunities. Entering the inside of the cable causes a poor seal of the cable, further corrodes the cable and causes moisture to enter, and eventually leads to the occurrence of a cable fault.
For the causes of the above-mentioned several kinds of cable faults, Yitiancheng Power put forward several corresponding solutions, that is, the first choice of high-quality power cable, the requirements must meet the national standards, while the cable must be installed The insulating surface is thoroughly polished and cleaned to prevent foreign particles from remaining on the insulation. The cable is also required to be tin-plated, and the series resonance is WWW.HB1000KV.COM.
Of course, the power cable fault causes are not merely the above-mentioned ones. Power companies should take actuality as the starting point in actual operation, standardize procurement and standard construction, and minimize the frequency of cable faults.
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