Restoration method of cable used by internal combustion engine traction locomotive and electric power traction locomotive

A repair method and cable technology, which can be used in insulation/armoured cable repair equipment, equipment for connecting/terminating cables, etc., which can solve the problems of high cost of replacing new cables and high requirements for cable reliability.

Inactive Publication Date: 2012-02-22
李林霄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reliability of the cable is high, and the local rubber silicon cracks and mechanical damage of the cable caused by long-term use need to be eliminated when the locomotive is overhauled, and the cost of replacing the new line is huge, so a cable repair method is urgently needed in the production process

Method used

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  • Restoration method of cable used by internal combustion engine traction locomotive and electric power traction locomotive
  • Restoration method of cable used by internal combustion engine traction locomotive and electric power traction locomotive

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with specific embodiments.

[0016] refer to figure 1 , the old cable flaw detection inspection and insulating rubber failure inspection, first peel off the cable sheath 12 at the grounding and phase failure, clean up the repaired cable, and check to determine how many broken wires the core copper wire has.

[0017] When the number of broken copper wires of the cable core wire exceeds 2 / 3 of the core wire copper wire, it cannot be repaired.

[0018] When the number of broken copper wires of the cable core wire does not exceed 1 / 3 of the core wire copper wire, the core wires with the same cross-sectional area can be used, the core wires are arranged in steps, and the contacts of each core wire are diverged (that is, the contacts are staggered by a certain amount). distance), and mutually equal-length docking.

[0019] Use a knife to cut the cable sheath at both ends of the fault into a 45-degree con...

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PUM

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Abstract

The invention discloses a restoration method of a cable used by an internal combustion engine traction locomotive and an electric power traction locomotive. The method comprises the following steps: stripping off a skin of a cable of an earth fault position or a phase failure fault position, cleaning a position of the cable to be repaired, using a knife to cut two ends of the fault position and forming a 45 degrees cone, beating the cable by using a wood rasp to form a rough surface, and carrying out cleaning by using gasoline or CCl4; drying the cable, and winding an insulated rubber raw rubber belt being equal to the cable round the cable to be repaired; pasting talcum powder on a winding position, placing the cable into a cable hot repairing device for sulfurization hot repairing, and increasing clamp force of a mould with temperature rising, wherein when a temperature reaches 150 DEG C, the clamp force of the mould reaches the maximum, and an upper part and a lower part of the mould contact consistently; disconnecting a power supply when the temperature of the hot repairing device reaches 160 DEG C to 180 DEG C, carrying out natural cooling on the cable, when the temperature decreases and reaches 50 DEG C-80 DEG C, carrying down the cable, and repairing a rough edge of a hot repairing position; carrying out a 15000 V voltage experiment on the cable, wherein if the cable passes the experiment, restoration of the cable is successful.

Description

technical field [0001] The invention relates to a cable repair method for an internal electric traction locomotive, and belongs to the technical field of cable repair. Background technique [0002] Due to the special environment in which diesel and electric locomotives operate. The reliability of the cables is high, and the local rubber silicon cracks and mechanical damage of the cables caused by long-term use need to be eliminated when the locomotive is overhauled, and the cost of replacing new cables is huge. Therefore, a cable repair method is urgently needed in the production process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cable repair method for internal electric traction locomotives in view of the deficiencies in the prior art. [0004] Include the following steps: [0005] For flaw detection inspection of old cables and failure inspection of insulating rubber, first peel off the cable sheath a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/14H02G1/16
Inventor 李林霄
Owner 李林霄
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