Sealing method for heat shrinkable cable accessories

An overview of heat shrink cable accessories:

1. Heat shrinkable cable accessories are indispensable accessories to ensure the safe operation of cables;

2. Heat-shrinkable cable accessories and cold-shrinkable cable accessories Since most of the cable heads are installed in outdoor overhead, direct burial and other environments, waterproof and moisture-proof have become one of the keys to ensure the safe operation of cable heads, and it is also necessary to consider Its sealing performance and method;

3. There are usually two methods of sealing at present:

(1) One is the method of potting with asphalt or epoxy resin, which is complicated in process, difficult to control, and not conducive to maintenance.

(2) Another new sealing method for heat-shrinkable cable accessories is also the preferred method by domestic and foreign professional manufacturers, that is to use high-elasticity sealant, which is the current mainstream process:

a. Using this new method, the first thing to consider is the performance of the sealant, because the quality and performance of the sealant directly affect the sealing performance of the joint;

b. It is very important to choose a glue that can be firmly bonded to the surface of the cable body and the surface of the accessory material, and can be used in different temperature changing environments at the same time;

c. A good choice of sealant will ensure the normal operation of the heat shrinkable cable accessories, and thus ensure the smooth operation of the cable.

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