junction box door Introduction:
In the process of using the waterproof box, it is inevitable to encounter the problem of cable wiring waterproof, especially where the use environment requires high waterproof, special attention should be paid to the waterproof of the cable. The following common methods are introduced:
Ensure the sealing performance of the junction box. In fact, it is difficult to ensure that the junction box door can be kept dry for a long time in a high humidity environment. For example, in the underground roadway with high air humidity, there is often a slight short circuit in the junction box affected by moisture and the junction post affected by moisture rust, which causes the normal operation of the power supply system. Therefore, it is very important to ensure the sealing performance of junction box, to choose qualified junction box and sealing ring.
The composition of the Junction Box Door: One is polycarbonate, which has strong material properties, high impact strength, relatively stable size, is a colorless and transparent material, and has very good colorability, excellent electrical insulation, and good corrosion resistance. Wear resistance; however, it has a tendency of stress cracking, easy to be hydrolyzed at high temperature, and its compatibility with other resins is relatively poor. The second is polyvinyl chloride, which is one of the widely used plastic materials; the junction box is a non-crystalline material; in actual use, stabilizers, lubricants, pigments, anti-impact agents and other additives with various functions are often added .
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