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Electric stress relief adhesive for connecting thermal shrinkage cable accessory

A heat-shrinkable cable and electric stress technology, which is applied in the direction of cable accessories, cable installation, electrical components, etc., can solve the problems of cumbersome process, etc., and achieve the effects of high tensile strength, improved electrical stress distribution, and excellent bonding and sealing

Active Publication Date: 2012-04-04
JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the application, it was found that the installation process of the intermediate connection of the heat-shrinkable cable uses semi-conductive self-adhesive tape and 12 stress tubes, and the process is cumbersome

Method used

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  • Electric stress relief adhesive for connecting thermal shrinkage cable accessory

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] According to the corresponding components and the addition amount in Table 1, weigh each component. The electrical stress relieving glue for connecting heat-shrinkable cable accessories of the present invention can be obtained by mixing all the components uniformly in a kneader and then extruding them in a rubber extruder to form strips.

Embodiment 2-6

[0025] Weigh each component according to the corresponding components and the addition amount in Table 1. According to the method described in Example 1, the electrical stress relieving glue for connecting heat-shrinkable cable accessories of the present invention was prepared.

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Abstract

The invention discloses an electric stress relief adhesive for connecting thermal shrinkage cable accessories. The electric stress relief adhesive comprises ingredients of, by weight, 20-50 parts of elastomer, 20-50 parts of adhesion agent, 15-50 parts of conductive filling material, 0.5-5 parts of anti-oxidant, 2-5 parts of fire retardant and 0.5-1 part of lubricant. The electric stress relief adhesive for connecting thermal shrinkage cable accessories of the invention has good bonding intensity on aluminium, lead, copper and oil isolating pipe, has excellent bonding sealing, airtight, weatherability and aging resistance in an insulating cable joint, and has proper dielectric constant and volume resistivity, large tensile strength and good effect on mitigating and dispersing electric stress.

Description

technical field [0001] The invention relates to an electrical stress evacuation adhesive, in particular to an electrical stress evacuation adhesive used for connecting heat-shrinkable cable accessories. Background technique [0002] The power cable line is an important part of the railway power system. The power cable terminal is an important part of the cable line, and it is also a weak link in the reliable operation of the cable line. About 70% of the cable faults occur on the cable terminal. The shell pouring type cable terminal was originally used, but it has the characteristics of large volume, inconvenient installation, large metal consumption and high cost. In response to the above shortcomings, heat-shrinkable cable terminals were developed in the 1980s, which have been widely used in railway power supply systems. The advantages are wide application range, simple production, small size, and light weight. It is not easy to properly handle the interface and stress dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J109/06C09J109/02C09J123/22C09J171/03C09J175/04C09J145/00C09J193/04C09J157/02C09J123/20C09J9/02H02G15/064
Inventor 邹存洋杨军伟
Owner JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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