Since people began to find the use of electricity, the wire and power cable has become the main carrier of power transmission. Whether it is electrical equipment, lighting lines or all aspects of household appliances are inseparable from the wire and power cable. Although it is only a supporting industry, but it occupied the electrical industry more than half of the market. Wire and power cable will directly affect the quality of the project and the safety of people, will also affect the development prospects of the cable.

Wire and cable in the course of the operation, often such an accident, especially the use of non-standard wire and cable in the case. Power cable in operation, the occurrence of two-phase (and multi-phase) ground or phase short circuit failure, most of the system caused by tripping, this phenomenon is commonly known as - shot. Here we have to say, resulting in "cable blasting" the main factors which?

1. Power cable internal three-phase core line between each other short-circuit fault, or one of the relative cable short-circuit fault, will have a very large heat, making the fault burst.

2. Insulation layer of particles, impurities, bubbles and the like, or have external mechanical damage.

3. The power cable is too damaging the cable.

4. The bending radius is too small, the mechanical external force damage, the DC resistance test ion release is not complete, the rated current overload.

Power cable blasting is in operation, will cause the system to suddenly trip, which is extremely unfavorable to the production. We believe that the cable system if there are frequent blasting failure, indicating the cable line construction, operation, maintenance and management and other aspects of the existence of a larger problem, should cause enough attention in the repair work is completed, you should carefully find the cause and eliminate, To avoid another blasting accident.

The above is a brief introduction to the power cable, learn more about the power cable content, please pay attention to kingsignal official website.