Insulation material for cable joint

A technology for insulating materials and cable joints, applied in the directions of organic insulators, plastic/resin/wax insulators, etc., which can solve the problems of inconvenience, poor insulation performance, and inability to meet the insulation requirements of cable joint devices, and achieve uniform material and excellent molding ability. , the effect of low production cost

Active Publication Date: 2010-06-16
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rubber material has the advantages of relatively stable chemical properties and high dielectric strength, but the material needs high temperature setting, which brings inconvenience to the site construction; polyethylene material has the advantages of good flame retardancy, strong plasticity, and easy casting and setting on site. The insulation performance of the material is poor; epoxy resin has excellent chemical stabil

Method used

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  • Insulation material for cable joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix 58 parts by weight of epoxy resin, 21 parts by weight of curing agent, 8 parts by weight of glass fiber, 6 parts by weight of polyethylene reagent and 7 parts by weight of mica powder. Required cable gland assembly.

Embodiment 2

[0024] Mix 59 parts by weight of epoxy resin, 20 parts by weight of curing agent, 8 parts by weight of glass fiber, 7 parts by weight of polyethylene reagent and 6 parts by weight of mica powder. Required cable gland assembly.

Embodiment 3

[0026] Mix 60 parts by weight of epoxy resin, 19 parts by weight of curing agent, 8 parts by weight of glass fiber, 6 parts by weight of polyethylene reagent and 7 parts by weight of mica powder, pour them into the cable joint for shaping, and obtain the obtained A cable gland is required.

[0027] Adopt 2500V insulation shake meter to detect the insulation resistance of the cable joint device that makes among the embodiment 1-3, the obtained result is as follows:

[0028]

[0029] The above test results show that the insulation technical indicators of the samples produced in Examples 1-3 all meet the requirements, the performance is excellent, and the production cost is low. At the same time, due to the addition of mica powder, its flame retardancy has also reached the VO level, which is completely in line with Requirements for cable joints in power engineering.

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Abstract

The invention provides an insulation material for a cable joint, which comprises the following components in weight percent: 55-70% of epoxy resin, 15-23% of curing agent, 6-11% of glass fiber, 5-10% of polyethylene reagent and 1-7% of additive. The insulation material of the invention has excellent forming ability, and the material quality is uniform after the insulation material is formed. By detection, the insulation resistance between cables of a cable joint device adopting the insulation material fully meets the requirement of the insulation strength required for the power engineering, the flame resistance of the insulation material reaches V0 level, and simultaneously, the manufacturing cost is very low.

Description

technical field [0001] The invention relates to an insulating material, in particular to an insulating material used for cable joints. Background technique [0002] Existing insulating materials mainly include rubber, polyethylene and epoxy resin. Rubber material has the advantages of relatively stable chemical properties and high dielectric strength, but the material needs high temperature setting, which brings inconvenience to the site construction; polyethylene material has the advantages of good flame retardancy, strong plasticity, and easy casting and setting on site. The material has poor insulation performance; epoxy resin has excellent chemical stability, good corrosion resistance to alkali, acid, salt and other media, and good flame retardancy, but the material needs corresponding cooperation to be finalized. [0003] In practical applications, none of the above three materials can meet the insulation requirements of the cable joint device. Therefore, seeking a per...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L23/06C08K7/14C08K3/34H01B3/40
Inventor 鲍长庚王辉
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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