Power cable insulation repair method

The production volume of power cables is very considerable in China. Power cables are relatively cumbersome to produce. If the production time is too long, it is easy to cause failures, and it is necessary to insulate them. The country has relevant regulations on this issue.

The general method of repair is to use the welding torch heating repair method, which is simple and convenient and practical, the effect is also possible. However, if the repaired area is used for a long time, insulation shrinkage will occur, underground cables will not achieve moisture-proof and waterproof effects, and the atrophic parts of overhead power cables will be more and more extended.
There is also a way to protect the cable insulation layer, which is a very effective method for the middle of the cable (the company sells it). The main structure of the product is to trap the entire cable damage and quickly heat the cable by heat treatment or cold treatment. Live, to achieve the same effect as the original cable. However, the material used to repair power cables is more expensive than ordinary repair methods, but the effect is very good. In particular, when the cable is laid, the cable should be repaired by damage.

The repair method of the power cable is probably the two kinds. Of course, there are temporary insulation tapes that can be used to maintain the site. However, it is only an emergency solution. In the original production process, the relevant national standards do not allow repair of the insulation without the written consent of the user. There are both advantages and disadvantages in the outer insulation repair of power cables. Of course, it is certainly not a good one.

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