Cable intermediate joint manufacturing method

Abstract

The invention relates to a cable intermediate joint manufacturing method. The outer side of an intermediate joint is sleeved by a first heat shrink tube, the joint of the first heat shrink tube and an outer sheath on a corresponding cable is wrapped by a high-pressure rubber self-adhesive tape, the seal of the interface position between the first heat shrink tube and the corresponding cable is guaranteed, the first heat shrink tube is sleeved by a second heat shrink tube, and two ends of the second heat shrink tube are both covered by high-pressure rubber self-adhesive tapes which exceed two ends of the first heat shrink tube. Compared with the method in the prior art that half-lap-type wound waterproof adhesive tapes are used for waterproofing, the cable intermediate joint manufacturing method is advantaged in that the intermediate joint manufactured by the method has better water resistance and moisture resistance.

Description

technical field [0001] The invention relates to a manufacturing method of a cable intermediate joint. Background technique [0002] With the development of industrial automation and monitoring system technology, the reliability of equipment operation requires more and more cables, and the accuracy requirements are getting higher and higher; the cable intermediate joint refers to the connection between various sections of cables A kind of joint made; for the long-term, safe and stable operation of the equipment, the requirements for the intermediate joint in the middle of the cable are becoming more and more stringent, especially for some intermediate joints on cables installed in humid environments such as underground and pipelines. The moisture-proof and waterproof performance of the joint is required to be higher. [0003] Chinese patent CN103972825A discloses a method for making a wrap-around intermediate joint, and discloses a method for waterproofing the intermediate j...

AI Technical Summary

Problems solved by technology

[0004] From the above, it can be seen that the way of the existing technology to realize the waterproofing of the intermediate joints is to rely on the semi-overlapped waterproof belt; however, there are gaps in the overlapped sections of the adjacent parts on the waterproof belt. As the service time increases, the moisture in the surrounding environment of the intermediate joint may still pass through the gap between the overlapping parts on the waterproof belt, and the waterproof and moisture-proof performance is poor.

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