Waterproof explosion-proof box for cable intermediate connector

Abstract

The invention discloses a waterproof and explosion-proof box for a cable intermediate joint, which comprises a cavity and a cover, and the cover is connected with the cavity to form a closed explosion-proof cavity for cable joints; the cover is provided with energy-dissipating conduits on the left and right sides of the explosion-proof cavity for cable joints Baffles are arranged at both ends, and springs are arranged between the baffles and the inner walls of both ends of the explosion-proof cavity of the cable joint; an energy-discharging valve assembly is arranged at the lower end of the energy-discharging conduit. The cable joint waterproof and explosion-proof box of the present invention has good waterproof performance, excellent explosion-proof performance, ingenious structural design, adopts the way of energy dissipation, reduces the power of the cable joint explosion, and ensures the cable joint waterproof and explosion-proof box itself and the adjacent cable joint waterproof and explosion-proof boxes safety.

Description

technical field [0001] The invention belongs to the technical field of waterproof and explosion-proof boxes for cable joints, in particular to a waterproof and explosion-proof box for cable intermediate joints. Background technique [0002] The cable intermediate joint is the weakest link of the cable. Cable intermediate joints are inevitably used in the long-distance cable laying process. In the process of urban construction, for the sake of beautification and safety, more and more high-voltage overhead lines are laid underground, and cable trenches and cable ducts are laid. Therefore, there will be more and more cables and cable intermediate joints in cable trenches and cable tunnels in the future. During the use of the cable, the distance between the cable and the heat pipe is too close or the cable is overloaded for a long time, and the temperature is too high to age the insulating material, resulting in a decrease in insulation performance, breakdown and ignition; the ...

AI Technical Summary

Problems solved by technology

However, the above three forms of waterproof and explosion-proof boxes need to be sealed after the cable joints are installed on site. However, the construction site conditions are limited, and the sealing performance of the waterproof and explosion-proof boxes cannot be guaranteed, which increases the safety hazards in the use of waterproof and explosion-proof boxes.

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