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Cable repair device and cable repair method

A cable and repair glue technology, applied in the direction of insulation/armored cable repair equipment, etc., can solve the problems of easy water ingress, hidden dangers of cable safety, decline in insulation performance, etc., to achieve good waterproof and moisture-proof performance, strength is not easy to break, prolong service life Effect

Active Publication Date: 2021-02-05
GUANGZHOU PANYU CABLE WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a long period of operation and maintenance, it is found that the traditional outer sheath maintenance method has some disadvantages. First, the cable insulation tape cannot be in close contact with the outer sheath layer. The cable runs in a humid environment for a long time. The gaps between the sheaths are prone to ingress of water and moisture, resulting in failure of the insulation at the repaired position and causing safety hazards to the cables in operation; secondly, the strength of the wrapped insulating tape is poor, and it is easy to be damaged during the construction process, resulting in a decline in insulation performance , and easy to get wet, also cause safety hazards

Method used

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  • Cable repair device and cable repair method
  • Cable repair device and cable repair method
  • Cable repair device and cable repair method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 1-2 As shown, a cable repair device includes a repair shell 1, the repair shell 1 is a combined structure, including two sub-shells 11, 12, one adjacent side of the two sub-shells 11, 12 is hinged, and the other is adjacent The sides can be connected by a locking device, wherein the sub-shell 11 is provided with a glue injection hole 14, and the repair shell 1 is a mating structure, which is convenient to be applied to the continuously extending cables that have been erected; the repair shell 1 is combined to form two A cable passing cavity with an open end, the inner diameter of the passing cavity is larger than the outer diameter of the cable to be repaired, when in use, the cable 2 passes through the passing cavity in the repaired shell 1, and the repaired shell 1 covers the damaged cable sheath 21 Covered inside, the two ends of the repair shell 1 are respectively set on the cable insulation sheath 22 at the two ends of the damaged cable sheath 21 and s...

Embodiment 2

[0038] On the basis of the technical solution of embodiment 1, the cable repairing device has been further improved:

[0039] like Figure 3-5As shown, the cable repair device also includes two sealed end shells 161, 162, each end face of which is provided with a cable opening, and the two sealed end shells 161, 162 are all combined structures, wherein the sealed end shells The outer periphery of the shell 161 is provided with an external thread that matches the internal thread of the repair shell 1, and the inner periphery of the sealing end shell 162 is provided with an internal thread that matches the external thread of the repair shell 1, wherein the inner periphery of the sealing end shell 162 is A second slot 153 is also provided, and a second elastic rubber sleeve 154 is embedded in the second slot 153. The second elastic rubber sleeve 154 includes two semi-annular second rubber blocks corresponding to the closed structure of the sealed end shell. When the end shells a...

Embodiment 3

[0041] A kind of cable repairing method, adopts the cable repairing device in embodiment 1, comprises the following steps:

[0042] ① Cover the repaired shell 1 on the damaged cable sheath 21, and seal the two ends of the repaired shell 1 with the cable insulating sheath 22 at both ends of the damaged cable sheath 21;

[0043] ②Inject liquid repair glue into the cavity between the repair shell 1 and the damaged cable sheath 21 through the glue injection hole 14 until the cavity is filled with repair glue;

[0044] ③ The liquid repair glue in the cavity is solidified into a solid repair glue, which together with the repair shell 1 constitutes the repair layer of the damaged cable sheath 21 .

[0045] In this method, the damaged cable sheath 21 is covered by the repairing shell 1, and liquid repair glue is injected into the repairing shell 1. After the repairing glue is solidified, the repairing layer of the damaged cable sheath 21 is formed together with the repairing shell 1. ...

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Abstract

The invention relates to the field of cable maintenance, in particular to a cable repairing device and a cable repairing method. The cable repairing device includes a repairing shell, including two split shells, one adjacent side of the two shells is hinged, and the other is adjacent The sides can be connected by a locking device. One of the two sub-shells is provided with a glue injection hole. After the repair shells are combined, a cable passing cavity with openings at both ends is formed. The inner diameter of the passing cavity is larger than the outer diameter of the cable to be repaired. The cable repair method is to cover the repaired sheath on the damaged cable sheath, and the two ends of the repaired sheath are respectively placed on the cable insulation sheath at both ends of the damaged cable sheath and sealed with it, and the liquid repair glue is injected through the glue injection hole. , after the repair glue is solidified, it can be used as the repair layer of the damaged cable sheath together with the repair shell; the beneficial effects of the invention are: simple structure, convenient use, good waterproof and moisture-proof performance, and high strength and not easy to break.

Description

technical field [0001] The invention relates to the field of cable maintenance, in particular to a cable repair device and a cable repair method. Background technique [0002] During the erection of power cables, the outer sheath of the cables is often damaged due to the poor construction environment, which affects the operation of the cables. When dealing with damage to the cable outer sheath, maintenance workers often use traditional methods to wrap and seal the breach with insulating tape. After a long period of operation and maintenance, it is found that the traditional outer sheath maintenance method has some disadvantages. First, the cable insulation tape cannot be in close contact with the outer sheath layer. The cable runs in a humid environment for a long time. The gaps between the sheaths are prone to ingress of water and moisture, resulting in failure of the insulation at the repaired position and causing safety hazards to the cables in operation; secondly, the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/16
CPCH02G1/16
Inventor 胡超强尤占山孙建吉覃丹陈雪儿卢广业张开拓王延发张仕欢郝燕邵源鹏程雪丽刘金勇
Owner GUANGZHOU PANYU CABLE WORKS
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