Full sealed cold shrinkage cable accessory

Abstract

The invention discloses a full sealed cold shrinkage cable accessory comprising a bushing. Equidistant silicone pads are fixedly connected on the external wall of the bushing, and gaps arranged outside the bushing are arranged among the silicone pads. A cold shrinkage sealed pipe is arranged in the bushing. A stress cone is arranged between the cold shrinkage sealed pipe and the internal wall of the bushing. A rubber seal is connected on the position, which is close to the bushing, of one side of the stress cone. The cold shrinkage sealed pipe comprises an insulating external layer, an insulating internal layer and a conductive pipe. The insulating external layer, the insulating internal layer and the conductive pipe are arranged from outside to inside in turn. One side of the insulating external layer is provided with a buffer capsule which is connected with the external wall of the conductive pipe. The external wall of the conductive pipe is provided with an insulating cable arrangedin the cold shrinkage sealed pipe. The position, which is away from one end of the buffer capsule, of one end of the cold shrinkage sealed pipe is provided with a contact end connected with the internal wall of the bushing. A seal ring adaptive to the contact end is connected on the external wall of the contact end. The beneficial effects are that the cable accessory is enabled not to be crackedor damaged in the long-term use process so that the insulating effect and the sealing performance can be effectively enhanced.

Description

technical field [0001] The invention relates to the technical field of cable equipment, in particular to a fully-sealed cold-shrinkable cable accessory. Background technique [0002] Power cable accessories are products that connect cables with power transmission and distribution lines and related power distribution devices. Generally, they refer to the intermediate connections and terminal connections of various cables in cable lines. They form a power transmission network together with cables; cable accessories are mainly based on cable structures. It can not only restore the performance of the cable, but also ensure the extension of the cable length and the connection of the terminal. The reliability of high-voltage cable accessories can be judged from the aspects of electrical performance, sealing and moisture-proof performance, mechanical performance and process performance. [0003] With the development and progress of the society and the rapid development of the powe...

AI Technical Summary

Problems solved by technology

[0003] With the development and progress of society and the rapid development of the power industry, the consumption of cables is huge, and the cold-shrinkable cable accessories are more and more widely used by the staff. The current cold-shrinkable cable accessories have a single structure and simple functions. Gaps are easy to appear in the process, poor shrinkage, affecting the sealing effect of the cable, and the bottom of the insulation reduces the practicability of the cold shrinkable cable accessories

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