The main factors that cause "cable blasting"

Since people found when using electric, wire and cable has become a main carrier of power transmission. Both electrical equipment, lighting and household electrical appliances all aspects without wires. Although it is only a supporting industry, but the better part of a market occupies the electrical industry. The quality of the Wire and cable will directly affect the engineering quality and the safety of the people, will also affect the development prospects of the cable.

In the process of operation, Wire and cable often will appear this or that kind of accident, especially under the condition of use of non-standard wire and cable.Cable at run time, two phase ground fault or alternate with, mostly tripping caused by system, the failure phenomenon is commonly known as - blasting. Let's talk about what are the main factors of "cable blasting".
1. The three-phase cable conductor short-circuit fault occurs between each other, or one of the relative cable sheath fault, will produce a very large quantity of heat, make the burst failure.
2. Such as the insulation layer inside the particles, impurities and air bubbles, or with external mechanical damage.
3. Check whether the cable is too very give hurt the cable bending.
4. Small bending radius, injury of external mechanical forces, dc resistance test ion release, not rated current overload.
Cable firing is in the running, cause a sudden trip systems, it is extremely adverse to the production. If we think the cable system fault, often appear blasting of cable line in the construction, operation, maintenance and management problems of the larger, should cause enough attention, after the repair work is done, should be carefully and find the reason to be eliminate, avoid shooting accident again.

http://www.yafeicable.com