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High-voltage cable

A high-voltage cable and cable technology, applied in the direction of insulating cables, insulating conductors/cables, cables, etc., can solve the problems of low breakdown voltage, and achieve the effect of increasing the breakdown voltage and reducing the phenomenon of electrical tree and corona.

Inactive Publication Date: 2018-02-23
SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect of low breakdown voltage of existing polyethylene insulated cables, and provide a high-voltage cable; the present invention will be modified polyethylene with excellent insulation, high temperature resistance and breakdown resistance The material acts as an insulating layer, thereby increasing the breakdown voltage of the polyethylene insulated cable, so that the polyethylene insulated cable can be used as a high voltage cable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-voltage cable, from the inside to the outside:

[0031] Conductor core: copper wire;

[0032] Insulation layer: prepared by the following method: (1) Treat 8 parts of porous ceramics with a particle size of 1 μm, a porosity of 25%, and a pore size of 35 nm with 0.8 parts of a silane coupling agent;

[0033] (2) Loading 0.002 parts of graphene and 0.3 parts of nano-alumina with a particle size of 5nm on the porous ceramic;

[0034] (3) Coating the porous ceramics loaded with graphene and nano-alumina with 15 parts of vinyl silicone rubber under negative pressure conditions to obtain an intermediate;

[0035] (4) Mix the intermediate with 60 parts of polyethylene and 0.3 parts of vinyltriethoxysilane evenly, and then use an extruder to cross-link and extrude to obtain the cable insulation layer material;

[0036] (5) Wrap the insulating layer material outside the conductor core to form an insulating layer;

[0037] Shielding layer: carbon fiber-polyvinyl chlorid...

Embodiment 2

[0040] A high-voltage cable, from the inside to the outside:

[0041] Conductor core: copper aluminum alloy wire;

[0042] Insulating layer: prepared by the following method: (1) Treat 5 parts of porous ceramics with a particle size of 2 μm, a porosity of 40%, and a pore size of 50 nm with 0.5 parts of a silane coupling agent;

[0043] (2) Loading 0.003 parts of graphene and 0.2 parts of nano-alumina with a particle size of 10nm on the porous ceramic;

[0044] (3) Coating the porous ceramics loaded with graphene and nano-alumina with 10 parts of vinyl silicone rubber under negative pressure conditions to obtain an intermediate;

[0045] (4) Mix the intermediate with 50 parts of polyethylene and 0.1 part of vinyltriethoxysilane evenly, and then use an extruder to cross-link and extrude to obtain the cable insulation layer material;

[0046] (5) Wrap the insulating layer material outside the conductor core to form an insulating layer;

[0047] Shielding layer: carbon fiber-po...

Embodiment 3

[0050] A high-voltage cable, from the inside to the outside:

[0051] Conductor core: aluminum wire;

[0052] Insulating layer: prepared by the following method: (1) Treat 10 parts of porous ceramics with a particle size of 0.1 μm, a porosity of 20%, and a pore size of 20 nm with 1 part of a silane coupling agent;

[0053] (2) Loading 0.001 parts of graphene and 0.5 parts of nano-alumina with a particle size of 2nm on the porous ceramic;

[0054] (3) Coating the porous ceramics loaded with graphene and nano-alumina with 20 parts of vinyl silicone rubber under negative pressure conditions to obtain an intermediate;

[0055](4) Mix the intermediate with 70 parts of polyethylene and 0.5 parts of vinyltriethoxysilane evenly, and then use an extruder to cross-link and extrude to obtain the cable insulation layer material;

[0056] (5) Wrap the insulating layer material outside the conductor core to form an insulating layer;

[0057] Sealing layer: silicone rubber;

[0058] Shie...

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Abstract

The invention discloses a high-voltage cable, comprising: at least one conductor core, an insulating layer wrapped around the conductor core, a shielding layer wrapped around the insulating layer, and a shielding layer wrapped around the shielding layer. The sheath layer outside the layer; the insulating layer is prepared from the following raw materials in parts by weight: 0.2-0.5 parts of nano-alumina, 5-10 parts of porous ceramics, 0.001-0.003 parts of graphene, 10-20 parts of Vinyl silicone rubber, 50-70 parts of polyethylene, 0.5-1 parts of coupling agent, 0.1-0.5 parts of cross-linking agent; will be modified to have excellent insulation, high temperature resistance and breakdown resistance The non-toxic polyethylene material is used as the insulating layer, thereby increasing the breakdown voltage of the polyethylene insulated cable, so that the polyethylene insulated cable can be used as a high-voltage cable.

Description

technical field [0001] The invention relates to the field of cables, in particular to a high-voltage cable. Background technique [0002] The cable is made of one or more wires twisted to form a conductor core, and then a corresponding insulating layer is applied to the conductor, and a sealed sheath is formed on the outside. It is mainly composed of a core, an insulating layer, and a shielding layer. and sheath layer. The cable occupies less ground and space; the power supply is safe and reliable, and the possibility of electric shock is small; it is beneficial to improve the power factor of the power system; the operation and maintenance work is simple and convenient; it is beneficial to beautify the city and has many advantages such as confidentiality. It is widely used in life. and all areas of production. [0003] The function of the insulating layer in the cable is to electrically isolate the core from the ground and the cores of different phases from each other, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L83/07C08K13/06C08K7/24C08K3/22C08K3/04H01B7/02H01B13/06H01B13/14
CPCC08L23/06C08K2003/2227C08K2201/003C08K2201/011C08L2201/08C08L2203/202H01B7/02H01B7/0275H01B13/06H01B13/14C08L83/04C08K13/06C08K7/24C08K3/22C08K3/04
Inventor 舒春柳
Owner SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD
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