Moistureproof underground cable protection device

A technology for underground cables and protection devices, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of poor stability of water blocking effect and decline of comprehensive performance, and achieve improved tensile and cracking resistance, good fatigue resistance, The effect of anti-crack performance

Active Publication Date: 2016-10-26
NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned disclosed technology has optimized and improved the structure of the cable for moisture-proof and waterproof defects, so as to increase the service life of the cable. However, in practical applications, there are problems of poor stability of the water-blocking effect and a relative decline in overall performance.

Method used

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  • Moistureproof underground cable protection device
  • Moistureproof underground cable protection device
  • Moistureproof underground cable protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] refer to Figure 1~2 , a protection device for a moisture-proof underground cable, comprising a moisture-proof underground cable and a protective sheath, the moisture-proof underground cable includes a cable body, and the cable body sequentially includes a guide core 1, an insulating layer I2, an inner lining layer 3, a second A water-blocking layer 4, a metal sheath 5, a second water-blocking layer 6 and an outer covering layer 7, the guide cores 1 are multiple, the guide cores 1 are covered with an insulating layer II10, and the guide cores 1 are filled with Cross-linked polyolefin, 5wt% carbon fiber is added in the cross-linked polyolefin 12, the outer surface of the outer coating layer 7 is coated with an anti-corrosion material 13, and the anti-corrosion material 13 is prepared from the following raw materials in parts by weight : 12 parts of polypropylene, 6 parts of ethyl acetate, 18 parts of nano attapulgite, 8 parts of polyamide wax, 15 parts of phenolic resin,...

Embodiment 2

[0029] refer to Figure 1~2 , a protection device for a moisture-proof underground cable, comprising a moisture-proof underground cable and a protective sheath, the moisture-proof underground cable includes a cable body, and the cable body sequentially includes a guide core 1, an insulating layer I2, an inner lining layer 3, a second A water-blocking layer 4, a metal sheath 5, a second water-blocking layer 6 and an outer covering layer 7, the guide cores 1 are multiple, the guide cores 1 are covered with an insulating layer II10, and the guide cores 1 are filled with Cross-linked polyolefin 12, 7wt% carbon fiber is added in the cross-linked polyolefin 12, the outer surface of the outer coating layer 7 is coated with anti-corrosion material 13, and the anti-corrosion material 13 is prepared from the following raw materials in parts by weight Composition: 12 parts of polypropylene, 6 parts of ethyl acetate, 18 parts of nano attapulgite, 8 parts of polyamide wax, 15 parts of phen...

Embodiment 3

[0033] refer to Figure 1~2 , a protection device for a moisture-proof underground cable, comprising a moisture-proof underground cable and a protective sheath, the moisture-proof underground cable includes a cable body, and the cable body sequentially includes a guide core 1, an insulating layer I2, an inner lining layer 3, a second A water-blocking layer 4, a metal sheath 5, a second water-blocking layer 6 and an outer covering layer 7, the guide cores 1 are multiple, the guide cores 1 are covered with an insulating layer II10, and the guide cores 1 are filled with Cross-linked polyolefin 12, 2wt% carbon fiber is added in the cross-linked polyolefin 12, the outer surface of the outer coating layer 7 is coated with anti-corrosion material 13, and the anti-corrosion material 13 is prepared from the following raw materials in parts by weight Composition: 10 parts of polypropylene, 8 parts of ethyl acetate, 15 parts of nano attapulgite, 5 parts of polyamide wax, 12 parts of phen...

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PUM

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Abstract

The invention provides a moistureproof underground cable protection device, and belongs to the technical field of a cable. The device comprises a moistureproof underground cable and a protection sleeve. The moistureproof underground cable comprises a cable body. The cable body comprises conduction cores, an insulation layer I, a lining layer, a first waterproof layer, a metal sheath, a second waterproof layer and a jacket layer, from the inside to the outside. There are multiple conduction cores. An insulation layer II is wrapped out of the conduction cores. Cross-linking polyolefin is filled among the conduction cores. Carbon fibers are doped in the cross-linking polyolefin. The protection sleeve is sleeved out of the moistureproof underground cable. The protection sleeve comprises a protection sleeve body. The shape of the protection sleeve body matches the shape of the moistureproof underground cable. The inner surface of the protection sleeve body is a structure that concave surfaces and convex surfaces are alternated. An anticorrosive material is coated on the inner surface. According to the device, the structure of an existing underground cable protection device is improved and optimized; the comprehensive performance of the cable is improved; in particular, the corrosion resistance is remarkably improved; and the waterproof performance is excellent; and the stability is high.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a protection device for moisture-proof underground cables. Background technique [0002] A cable is a wire made of one or more mutually insulated conductors surrounded by an insulation and a protective layer, and is used to transfer power or information from one place to another. Underground cables, compared to common overhead lines, are often buried underground. Unlike elevated high-voltage lines, cables are often laid in cable trenches, tunnels, pipelines or indoors. After entering the modern society, due to the shortage of urban land, heavy traffic pressure, city appearance construction and other reasons, large cities generally adopt underground cable transmission. Due to the underground environment, underground cables are easily damaged or corroded. Therefore, most underground cables are installed in pipelines, which are used to isolate the external environment, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/28H01B7/282H01B7/288H01B7/18C08L23/00C08K7/06C09D161/06C09D123/16C09D177/00C09D5/08C09D7/12
CPCC08K7/06C08K2201/011C08L2203/202C08L2205/03C09D5/08C09D7/61C09D7/63C09D7/65C09D123/14C09D161/06H01B7/18H01B7/2806H01B7/2825H01B7/288C08L23/00C08L77/00C08K13/02C08K3/346C08K3/34C08L61/06
Inventor 季元堂董军雷张燨刘雨张莉彭传军刘铮吴海波张震郭栋张骥李峰冯富全牛栋李小丽方利李静华
Owner NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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