Cable and application thereof to electric power system

A technology for cables and cable conductors, which is applied to cables and their applications in power systems. It can solve the problems of low tensile strength and hardness, poor flame-retardant properties of cable insulation, etc., and achieve better flame-retardant insulation and radiation resistance. Reduced possibility of breakage and damage, effects of wide application prospects

Inactive Publication Date: 2013-09-11
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defects of poor cable insulation and flame retarda

Method used

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  • Cable and application thereof to electric power system
  • Cable and application thereof to electric power system
  • Cable and application thereof to electric power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A cable, consisting of a cable conductor and an insulating material wrapped on the cable conductor, the insulating material is prepared from the following raw materials in parts by weight: 100 parts of liquid bisphenol F epoxy resin, 60 parts of phenolic resin powder, 30 parts of silicon carbide Parts, 20 parts of white carbon black, 15 parts of zinc N-ethyl-N-phenyldithiocarbamate, 10 parts of calcium carbonate, 10 parts of cryolite, 8 parts of N-phenyl-2-naphthylamine, stearin 7 parts of acid, 6 parts of magnesium hydroxide, 6 parts of zinc borate, 3 parts of triallyl isocyanurate, 2 parts of dimethylaminoethoxyethanol, and 2 parts of short peptide. The particle size of phenolic resin powder and white carbon black is controlled below 10um; the particle size of silicon carbide, calcium carbonate and cryolite is controlled below 1um; the short peptide is Gly-Thr-Gly-Gly.

[0020] The preparation method of the above-mentioned insulating material is as follows: take each ...

Embodiment 2

[0022] A cable insulating material, prepared from the following raw materials in parts by weight: 90 parts of bisphenol F epoxy resin (liquid bisphenol F epoxy resin), 50 parts of phenolic resin powder, 25 parts of silicon carbide, and 18 parts of white carbon black Parts, 12 parts of zinc N-ethyl-N-phenyldithiocarbamate, 8 parts of calcium carbonate, 8 parts of cryolite, 6 parts of N-phenyl-2-naphthylamine, 5 parts of stearic acid, hydrogenated Magnesium 4 parts, zinc borate 4 parts, triallyl isocyanurate 2 parts, dimethylaminoethoxyethanol 2 parts, short peptide 2 parts. The particle size of phenolic resin powder and white carbon black is controlled below 10um; the particle size of silicon carbide, calcium carbonate and cryolite is controlled below 1um; the short peptide is Pro-Gly-Val-Thr-Val.

[0023] The preparation method of the above insulating material is as follows: take each raw material according to the weight ratio, pour it into a high-speed mixer, stir and mix at ...

Embodiment 3

[0025] Various performance parameter tests of the insulating material prepared by the present invention

[0026] 1. Flame retardant performance test:

[0027] Table 1

[0028]

[0029] Conclusion: The cable insulation material prepared by the invention has good mechanical properties and can be applied to various cable materials.

[0030] 2. After γ-ray irradiation (radiation dose is 1000kGy), the change of mechanical properties:

[0031]

[0032]

[0033] Conclusion: After γ-ray irradiation, the tensile strength, elongation at break and hardness do not decrease significantly, and the radiation resistance is better.

[0034] 3. Flame retardant and insulating properties:

[0035] table 3

[0036]

[0037] Conclusion: It has good insulation performance and high oxygen index. It is a flame retardant material and has a good flame retardant effect.

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Abstract

The invention relates to a cable and application thereof to an electric power system. The cable consists of a cable conductor and an insulation material wrapping the cable conductor, wherein the insulation material is prepared from the following components: 90 to 100 parts of bisphenol F-type epoxy resin, 50 to 60 parts of phenolic resin powder, 25 to 30 parts of silicon carbide, 18 to 20 parts of white carbon black, 12 to 15 parts of N-ethyl-N-phenyl zinc aminodithioformic acid, 8 to 10 parts of calcium carbonate, 8 to 10 parts of kryocide, 6 to 8 parts of N-phenyl-2-naphthylamine, 5 to 7 parts of stearic acid, 4 to 6 parts of magnesium hydroxide, 4 to 6 parts of zinc borate, 2 to 3 parts of triallylamine isocyanuric acid ester, 2 parts of dimethylamino ethoxyethanol and 2 parts of oligopeptide. The prepared insulation material is good in mechanical performance and insulation and flame retardant performance, and the preparation method is simple.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a cable and its application in a power system. Background technique [0002] Electric cable (electric cable; power cable) is usually made of one or more mutually insulated conductors covered with insulation and protective layers. It is a wire that transmits power or information from one place to another, and is widely used in power systems. The types of cables mainly include: XLPE insulated power cables, rubber-sheathed flexible cables, resistance cables for coal mines, marine cables, aluminum stranded wires and steel-cored aluminum stranded wires, PVC insulated control cables, polyvinyl chloride insulated wires , Submersible pump cables, elevator cables, railway signal cables, computer-specific cables, etc. [0003] With the continuous development of the power industry, improved products such as flame-retardant and radiation-resistant power cables have been widely...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08L61/06C08K13/02C08K5/20H01B3/40H01B3/36
Inventor 李迎新
Owner STATE GRID CORP OF CHINA
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