Cable joint connection branch box

Abstract

The invention provides a cable joint connection branch box. A box body top cover, a box body frame, a cable joint support and a skid-mounted chassis are formed by welding galvanized profiles. The boxbody top cover is located at the top end of the branch box, the cable joint support is fixed to the skid-mounted chassis, and the box body frame is located between the box body top cover and the skid-mounted chassis; the grounding protection box is fixed in the box body frame through bolts, and an access door and a channel door are fixed on the box body frame through stainless steel hinges. The cable joint support and the skid-mounted chassis are fixed through welding forming. The cable joint support is divided into two layers, one phase of the three-phase cable is arranged on the upper layer,other phases are arranged on the lower layer, the upper side insulating partition plate is laid below the upper-layer support cable joint, the lower side insulating partition plate is laid between the two lower-layer support cable joints, and the cable fixing beams are arranged in the upper and lower layers of the cable joint support; the cable joint connection branch box has the advantages of being safe, rapid and convenient to construct and operate, capable of being directly transported to the construction site to conduct cable connector work, shortening the construction period and improving efficiency.

Description

technical field [0001] The patent of the invention relates to the field of high-voltage cable joints, in particular to a cable joint connection branch box. Background technique [0002] In the power system, when laying underground pipes for outdoor wiring, cable joint wells need to be designed at the cable joints. Since the joint well is below the ground, the waterproof and moisture-proof requirements of the cable well are relatively high. The rainwater drainage problem needs to be considered in the cable well in rainy places. Once the water enters the cable joint, it will accelerate aging. Water collection pit or seepage drainage hole scheme, but the above methods still cannot solve the problem of cable soaking in water. There are no isolation protection measures between the phase sequences of the cable joints, and deflagration of one cable outlet will directly damage other cable ends. Contents of the invention [0003] The main purpose of the present invention is to pr...

AI Technical Summary

Problems solved by technology

There are no isolation protection measures between the phase sequences of the cable connectors, and the deflagration of one cable outlet will directly damage other cable connectors

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