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Cable for power distribution system

A power distribution system and cable technology, applied in the field of power materials, can solve problems such as hindering safe evacuation and fire fighting work, loss of life and property, etc.

Inactive Publication Date: 2016-03-02
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] No matter from the perspective of mechanical properties, thermal fire chemical resistance and disaster protection, the outer insulation material of the cable plays a vital role in protecting the internal material from damage and maintaining its normal operation. In the specific application process, the cable The outer insulating material must be able to resist sunlight, UV radiation, ozone aging, and chemical erosion, and at the same time, it can still guarantee or temporarily guarantee its normal operation in the case of accidental disasters. With the frequent occurrence of electrical fire accidents, the resistance of wires and cables The burning problem has gradually attracted the attention of all countries in the world; when the cable burns, it releases a large amount of smoke and toxic and corrosive gases, which are dangerous factors in fires, which hinder people's safe evacuation and fire fighting work, and cause serious losses of life and property. At the same time, with the development of the communication industry, the automobile industry and the computer industry, especially in many occasions such as aviation wires, automobile wires, high-temperature instrument cables, and oil drilling platform cables, it is increasingly necessary to use flame-retardant, thermally stable, and heat-resistant materials. Cable insulation outer layer with high deformation temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A cable for power distribution systems, which is prepared by wrapping wires with an insulating outer layer,

[0024] The insulating outer layer is prepared from the following raw materials in parts by weight:

[0025] 1 part of graphite, 1 part of aluminum tripolyphosphate, 1 part of aluminum hydroxide, 2 parts of triphenyl phosphate, 2 parts of oleic acid amide, 2 parts of zinc borate, 2 parts of glass fiber, 3 parts of borax, 3 parts of palygorskite, 3 parts of stearic acid, 4 parts of aluminum nitride, 4 parts of egg shell, 6 parts of triallyl cyanurate, 10 parts of polypropylene resin, 12 parts of EPDM rubber, 15 parts of polyvinyl chloride, hydrogenated butyl 15 parts of nitrile rubber.

[0026] Among them, the particle size of graphite, aluminum tripolyphosphate, aluminum hydroxide, zinc borate and aluminum nitride is controlled at 100 mesh; the diameter of glass fiber is 10um, and the length is 30um.

[0027] The preparation method of the above-mentioned insula...

Embodiment 2

[0033] A cable for power distribution systems, which is prepared by wrapping wires with an insulating outer layer,

[0034] The insulating outer layer is prepared from the following raw materials in parts by weight:

[0035] 2 parts of graphite, 2 parts of aluminum tripolyphosphate, 2 parts of aluminum hydroxide, 3 parts of triphenyl phosphate, 3 parts of oleic acid amide, 3 parts of zinc borate, 3 parts of glass fiber, 4 parts of borax, 4 parts of palygorskite, 4 parts of stearic acid, 5 parts of aluminum nitride, 5 parts of egg shell, 8 parts of triallyl cyanurate, 12 parts of polypropylene resin, 15 parts of EPDM rubber, 20 parts of polyvinyl chloride, hydrogenated butyl 20 parts of nitrile rubber.

[0036] Among them, the particle size of graphite, aluminum tripolyphosphate, aluminum hydroxide, zinc borate and aluminum nitride is controlled at 100 mesh; the diameter of glass fiber is 20um, and the length is 50um.

[0037] The preparation method of above-mentioned insulat...

Embodiment 3

[0043] The performance test of the insulating outer layer prepared by the present invention:

[0044] 1. The mechanical properties of the insulating outer layer prepared in Example and Example 2 are better in corrosion resistance and insulation performance. The specific test results can be seen in Table 1, wherein the thickness of the insulating outer layer is 2mm:

[0045] group Exterior Tensile strength (N / mm 2 ) Elongation at break (%) Thermal stability time at 200°C (min) Volume resistivity×10 -15 (Ω·cm) Oxygen Index Example 1 Good plasticization, uniform color and no impurities 19.4 477 >200 2.32 33.4 Example 2 Good plasticization, uniform color and no impurities 19.1 473 >200 2.29 33.9

[0046] 2. Anti-corrosion performance test: soak the test material in 10% sodium chloride solution for 30 days, measure the main performance parameters, see Table 2: soak the test material in 10% sulfuric acid solution for 30 days, the mai...

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Abstract

The invention belongs to the field of power distribution, and discloses a cable for a power distribution system. The cable is prepared by wrapping a wire with an insulating outer layer. The insulating outer layer is prepared from graphite, aluminum triphosphate, aluminum hydroxide, triphenyl phosphate, oleamide, zinc borate, glass fiber, borax, palygorskite, stearic acid, aluminum nitride, egg shells, triallyl cyanurate, polypropylene resin, ethylene propylene diene monomer, polyvinyl chloride and hydrogenated acrylonitrile butadiene rubber. The cable for the power distribution system is good in flame retardant property, excellent in mechanical property and good in corrosion resistance, the application range is widened, and the service life of the cable is prolonged.

Description

technical field [0001] The invention belongs to the field of power materials, and in particular relates to a cable used in a power distribution system. Background technique [0002] The power distribution system refers to the section of the power system from the step-down distribution substation (high-voltage distribution substation) to the user's end, which is called the power distribution system. The power distribution system is a power network system composed of various power distribution equipment (or components) and power distribution facilities that transforms voltage and directly distributes power to end users. [0003] Cables are an important part of the power distribution system. In recent years, with the increasing development and popularization of the use of wires and cables in production and life, the demand for wires and cables has increased rapidly, and with the development of the economy, the requirements for its materials have also increased. The higher it...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L9/02C08L23/16C08L23/12C08K13/02C08K5/20C08K5/3492C08K7/14C08K3/04C08K3/28
Inventor 刘松魏若琳王彬彬王倩李建营
Owner STATE GRID SHANDONG ELECTRIC POWER
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