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Insulated wire

A technology of insulated wires and metal cores, applied in insulated cables, insulators, insulated conductors, etc., can solve the problems of loss of insulation performance of insulating rubber, potential safety hazards, poor weather resistance of insulating rubber, etc., to improve insulation performance and corrosion resistance. performance, improved abrasion and weather resistance, enhanced strength and abrasion resistance

Active Publication Date: 2017-05-31
ZHENGZHOU ELECTRIC POWER COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor weather resistance of the outer insulating rubber, this insulated wire is exposed to the air for a long time, and is affected by natural conditions such as sun exposure, wind and rain erosion, alternating cold and heat, and smog, which will make its surface insulation The rubber loses its insulating properties, which creates a safety hazard

Method used

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  • Insulated wire

Examples

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Effect test

Embodiment 1

[0042] As shown in the figure, an insulated wire includes a metal core 1 and a protective layer wrapped around the outer layer of the metal core 1. The protective layer is an insulating rubber layer 2, a polyurethane fiber layer 3 and an insulating varnish layer from the inside to the outside. 4. The polyurethane fiber layer 3 is a polyurethane fiber cloth woven from polyurethane fibers.

[0043] The above is the basic implementation of this embodiment, further optimization, improvement and limitation can be done on the basis of the above:

[0044] For example, according to weight ratio, the insulating rubber layer 2 is mixed at 60°C by 36 parts of mixed rubber matrix, 4 parts of reinforcing fiber, 2 parts of vulcanizing agent, 4 parts of additive and 2 parts of filler. Among them, the mixed rubber matrix is ​​obtained by mixing ethylene-propylene rubber, fluororubber, silicone rubber and asphalt in a weight ratio of 8:4:2:1, and the reinforcing fiber is made of polyurethane f...

Embodiment 2

[0059] As shown in the figure, an insulated wire includes a metal core 1 and a protective layer wrapped around the outer layer of the metal core 1. The protective layer is an insulating rubber layer 2, a polyurethane fiber layer 3 and an insulating varnish layer from the inside to the outside. 4. The polyurethane fiber layer 3 is a polyurethane fiber cloth woven from polyurethane fibers.

[0060] The above is the basic implementation of this embodiment, further optimization, improvement and limitation can be done on the basis of the above:

[0061] For example, according to weight ratio, the insulating rubber layer 2 is mixed at 80°C by 38 parts of mixed rubber matrix, 6 parts of reinforcing fiber, 3 parts of vulcanizing agent, 5 parts of admixture and 3 parts of filler. Among them, the mixed rubber matrix is ​​obtained by mixing ethylene-propylene rubber, fluororubber, silicone rubber and asphalt at a weight ratio of 10:5:3:1, and the reinforcing fiber is made of polyurethane...

Embodiment 3

[0076] As shown in the figure, an insulated wire includes a metal core 1 and a protective layer wrapped around the outer layer of the metal core 1. The protective layer is an insulating rubber layer 2, a polyurethane fiber layer 3 and an insulating varnish layer from the inside to the outside. 4. The polyurethane fiber layer 3 is a polyurethane fiber cloth woven from polyurethane fibers.

[0077] The above is the basic implementation of this embodiment, further optimization, improvement and limitation can be done on the basis of the above:

[0078] For example, according to weight ratio, the insulating rubber layer 2 is mixed at 70°C by 37 parts of mixed rubber matrix, 5 parts of reinforcing fiber, 2.5 parts of vulcanizing agent, 4.5 parts of admixture and 2.5 parts of filler. Among them, the mixed rubber matrix is ​​obtained by mixing ethylene-propylene rubber, fluororubber, silicone rubber and asphalt at a weight ratio of 9:4.5:2.5:1, and the reinforcing fiber is made of pol...

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Abstract

The invention discloses an insulated wire which belongs to a power material used in the field of power transmission. The insulated wire comprises a metal wire core and a protective layer wrapped on an outer layer of the metal wire core, wherein the protective layer sequentially comprises an insulating rubber layer, a polyurethane fiber layer and an insulating paint layer from inside to outside; and the polyurethane fiber layer is polyurethane fiber cloth knitted by polyurethane fibers. According to the insulated wire, the insulating rubber layer, the polyurethane fiber layer and the insulating paint layer are sequentially arranged on the surface of the metal wire core from inside to outside, so that the weather resistance and an insulating property of the insulated wire are greatly improved, and the service life of the insulated wire is further prolonged.

Description

technical field [0001] The invention relates to electric power materials used in the field of power systems, in particular to an insulated wire. Background technique [0002] Wires are electrical materials that are often encountered and seen in daily life, and are used to conduct current. The structure of the wires used in the daily life of the general family is relatively simple, and the inner metal core is wrapped with an insulating rubber layer outside. This kind of insulated wire has low manufacturing cost and is often used in daily life. However, due to the poor weather resistance of the outer insulating rubber, this insulated wire is exposed to the air for a long time, and is affected by natural conditions such as sun exposure, wind and rain erosion, alternating cold and heat, and smog, which will make its surface insulation The rubber loses its insulating properties, thus creating a safety hazard. Contents of the invention [0003] The object of the present inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/28H01B3/28H01B3/40H01B3/48H01B7/18C08L23/16C08L27/12C08L83/04C08L75/04C08L27/06C08K13/04C08K7/14C08K3/36C08K3/34C08K3/22C09D163/00C09D183/04C09D133/00C09D7/12C09D5/25
CPCY02A30/14H01B7/28C08K2201/011C08K2201/014C08L23/16C08L2203/202C08L2205/03C08L2205/035C08L2205/16C09D7/61C09D7/62C09D163/00H01B3/28H01B3/308H01B3/40H01B3/48H01B7/1875C08L83/04C08L33/00C08K13/06C08K3/36C08K3/346C08K3/34C08K2003/2227C08L27/12C08L75/04C08L27/06C08K13/04C08K7/14C08K2003/2241
Inventor 汪云郝会霞
Owner ZHENGZHOU ELECTRIC POWER COLLEGE
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