Cable repairing device and cable repairing method

Abstract

The invention provides a cable repairing device, and belongs to the technical field of power cable repairing. The device comprises a pressure injection system, a vacuum pumping system and two repair joints, wherein the pressure injection system comprises an air compressor, a gas drying tank and a repairing liquid storage tank which are connected in sequence, the vacuum pumping system comprises a residual liquid collecting tank, a filtering tank and a vacuum pump which are connected in sequence, the two repairing joints are respectively connected to two ends of a cable and are used for connecting the repairing liquid storage tank and the residual liquid collecting tank, the repairing joint comprises a shell, a conducting rod is arranged at the front end of the shell, a containing cavity is formed in the shell, a power connection cavity is formed between the containing cavity and the conducting rod, a conducting assembly is arranged in the power connection cavity, a first communicating pipe is arranged on the side wall of the shell, and the first communicating pipe communicates with the containing cavity. According to the cable repairing device provided by the invention, the cable insulating layer is repaired under the condition that the cable is electrified, so that the inconvenience that the cable is inconvenient to replace and the whole-course power failure is needed during cable repairing is solved, and the cable repairing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of power cable repair, and more specifically relates to a cable repair device and a cable repair method. Background technique [0002] Due to the poor waterproof performance of the early cables, cable water trees are prone to occur during use. With the development of water trees, electrical trees are formed, which eventually leads to failure of the cable insulation layer. Since the cables are mostly buried underground and concentrated in the central area of ​​the city, replacing cables is not only time-consuming and laborious, but also affects people's daily production and life. Therefore, at present, local defect repair methods are mostly used to save maintenance manpower and reduce financial waste. [0003] At present, the method of local cable repair mostly adopts the method of injecting repair liquid into the cable, but the whole process of repair needs to be cut off, and the power can not be turned on n...

AI Technical Summary

Problems solved by technology

[0003] At present, the method of local cable repair mostly adopts the method of injecting repair liquid into the cable, but the whole process of repair needs to be cut off, and the power can not be turned on normally until the repair is completed. Long-term power cuts will affect people's daily production and life, and cause financial waste.

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