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Heat vulcanization repairing method of cable connector and mould for repairing

A cable joint, thermal vulcanization technology, used in circuits, connections, electrical components, etc., can solve the problem of increasing the ground potential, waterproofing of high-voltage cables, poor pressure resistance, tensile resistance and wear resistance, normal production of equipment and personal injury. Safety and inconvenience and other issues, to achieve the effect of good practicability, tensile and wear resistance and other excellent performance

Active Publication Date: 2012-07-04
CHINA MOLYBDENUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively simple and fast, but the repaired high-voltage cable is poor in water resistance, pressure resistance, tensile resistance and abrasion resistance, especially when the cable is moving or encountering rainy and snowy weather, it is very easy to re-ground at the joint , so that the ground potential rises, causing grounding breakdown faults in other equipment electrical or weak links of cables, which brings great inconvenience to the normal production of equipment and personal safety.

Method used

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  • Heat vulcanization repairing method of cable connector and mould for repairing
  • Heat vulcanization repairing method of cable connector and mould for repairing

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Embodiment Construction

[0019] combine figure 1 , the length of the cable breach is about 400mm. In terms of the treatment of the cable core wires, the thermal vulcanization repair method connects the joints of the four copper core wires 2 with a Ф35mm*50mm copper pipe 1, and the joints are evenly staggered. Wrap the high-voltage waterproof tape to ensure the insulation between the copper core wires.

[0020] combine figure 2 , wrap the processed four copper core wires tightly with hot-vulcanized rubber belts, and control the diameter of the joints at about 90-95mm after wrapping; then use the prepared cable mold 4 to clamp them tightly. The gap between the cavity and the copper core wire is filled with vulcanized rubber, screw holes 3 are opened on the connecting ear plates 5 at both ends of the cable mold, and the screws pass through the screw holes to fasten and connect the two-petal cable molds; finally, put the fastened mold into 130 ℃-150℃ oven, take it out after vulcanization for 13-15 hour...

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Abstract

The invention discloses a heat vulcanization repairing method of a cable connector, comprising a cable core wire treatment step and a cable outer sheath treatment step, wherein the cable core wire treatment step comprises the following steps of: connecting a connector of each copper core wire (2) by a copper connecting pipe (1), tightly pressing by crimping pliers and covering by a high-voltage waterproof adhesive tape; and the cable outer sheath treatment step comprises the following steps of: covering the treated copper core wires and covering by heat vulcanized rubber adhesive tapes; and then, tightly clamping by a cable mould (4); and finally, placing the fastened cable mould (4) into an oven at a temperature of 130-150 DEG C, taking out after vulcanizing for 13-15 hours, and naturally cooling. The invention further discloses the cable mould applied to the heat vulcanization repairing method of the cable connector, which is arranged into two symmetrical sections; the two sections are combined to form a waist drum shape; connection ear plates (5) are respectively arranged at two ends of each section of the cable mould; screw holes (3) are arranged on the connection ear plates and screws pass through the screw holes to be fixedly connected with two sections of the cable mould. The repaired cable connector has extremely remarkable performances including waterproof performance, pressure resistance, tensile resistance, wear resistance and the like.

Description

technical field [0001] The invention relates to the technical field of cable joints, in particular to a thermal vulcanization repair method for cable joints. Background technique [0002] The 10KV high-voltage cables used in our country are cables with rubber as the insulation layer and sheath. cables, mine cables, installation cables, etc. The insulating layer and the sheath are made of natural rubber, styrene-butadiene rubber, ethylene-propylene rubber, etc. In addition to meeting the insulation performance and physical and mechanical properties, they are required to be resistant to aging and wear, and some products are required to be oil-resistant and flame-retardant. [0003] There are many large-scale equipment cable joints in open-pit mines, which need to be moved frequently and are easily damaged. And for the joint repair of high-voltage cables, domestic major counterparts all have no good solution. The processing of high-voltage cable joints in the prior art has a...

Claims

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Application Information

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IPC IPC(8): H01R43/00H01R43/048
Inventor 张金良崔福元崔彦斐
Owner CHINA MOLYBDENUM
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