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A kind of cable protection pipe and its application

A cable protection tube and mixture technology, applied in the field of electric power materials, can solve the problems of poor tensile and flexural strength, large friction resistance, easy deformation and fracture, etc., and achieve the effects of reducing friction damage, long service life and low cost

Inactive Publication Date: 2015-12-02
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of existing cable protection tubes in the prior art, which are easy to deform and break when exposed to extreme temperatures, easy to be corroded, poor in tensile and bending strength, large in frictional resistance, and flammable; the invention discloses a new type of cable protection tube, which The cable protection tube has good performance and can be widely used in the protection of cables

Method used

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  • A kind of cable protection pipe and its application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A cable protection tube, which is prepared from the following raw materials in parts by weight:

[0020] Polyvinyl chloride 100, polycarbonate 30, polyvinyl alcohol 28, hydroxyethyl cellulose 20, stearic acid 8, chitin 8, dicumyl peroxide 6, dicyclopentadiene 6, decabromodiphenylethylene 3 alkane, 1 barium titanate powder, 1 aluminum nitride powder, 1 chromium carbide powder, 1 borax, 1 talcum powder, 1 lead oleate, 1 silica gel.

[0021] Wherein, the particle diameter of above-mentioned barium titanate powder, aluminum nitride powder, chromium carbide powder, borax, talcum powder and lead oleate is controlled at 600 mesh;

[0022] The pore volume of the above silica gel is 0.6-0.8ml / g, the average pore diameter is 5.07.0nm, and the specific surface area is 500-650m 2 / g.

[0023] The preparation method of the above-mentioned cable protection tube comprises the following steps:

[0024] (1) Take the above-mentioned raw materials according to parts by weight for subse...

Embodiment 2

[0029] A cable protection tube, which is prepared from the following raw materials in parts by weight:

[0030] Polyvinyl chloride 120, polycarbonate 35, polyvinyl alcohol 32, hydroxyethyl cellulose 22, stearic acid 10, chitin 10, dicumyl peroxide 8, dicyclopentadiene 8, decabromodiphenylethylene Alkane 5, barium titanate powder 2, aluminum nitride powder 2, chromium carbide powder 2, borax 2, talcum powder 2, lead oleate 2, silica gel 2.

[0031] Wherein, the particle diameter of above-mentioned barium titanate powder, aluminum nitride powder, chromium carbide powder, borax, talcum powder and lead oleate is controlled at 600 mesh;

[0032] The pore volume of silica gel is 0.6-0.8ml / g, the average pore diameter is 5.0-7.0nm, and the specific surface area is 500-650m 2 / g.

[0033] The preparation method of the above-mentioned cable protection tube comprises the following steps:

[0034] (1) Take the above-mentioned raw materials according to parts by weight for subsequent u...

Embodiment 3

[0039] Measurement of various performance parameters of the cable protection tube prepared by the present invention: the outer diameter is 100 mm, the wall thickness is 5 mm, and the length is 10 m as an example. Tensile strength, bending strength, bus hardness, friction coefficient and oxygen index refer to GB / T1458, GB / T1449, GB / T3854, 6B / T3960, GB / T8924 respectively. The specific results are shown in Table 1.

[0040] Table 1

[0041]

[0042] Salt resistance test: soak the cable protection tube in 10% sodium chloride solution for 60 days, the tensile strength decreased by only 2%, the bending strength decreased by 4%, the friction coefficient increased by 2%, and the bus hardness decreased by 4% %.

[0043] Heat resistance test: Put the test sample into boiling water and boil for 1 hour, no deformation and foaming occurs, and more than 92% of tensile strength, bending strength and bus hardness remain, which has good heat resistance; the friction coefficient does not c...

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Abstract

The invention belongs to the field of electric power materials and discloses a cable protection pipe. The cable protection pipe is prepared from following raw materials in parts by weight: 100-120 parts of polyvinyl chloride, 30-35 parts of polycarbonate, 28-32 parts of polyvinyl alcohol, 20-22 parts of hydroxyethyl cellulose, 8-10 parts of stearic acid, 8-10 parts of chitin, 6-8 parts of dicumyl peroxide, 6-8 parts of dicyclopentadiene, 3-5 parts of decabromodiphenylethane, 1-2 parts of barium titanate powder, 1-2 parts of aluminum nitride powder, 1-2 parts of chromium carbide powder, 1-2 parts of borax, 12 parts of talcum powder, 1-2 parts of lead oleate and 1-2 parts of silica gel. The cable protection pipe disclosed by the invention has a good performance and a wide application prospect.

Description

technical field [0001] The invention belongs to the field of electric power materials, and specifically discloses a cable protection tube and an application thereof. Background technique [0002] Cable protection tube is also known as cable tube, power cable tube, cement cable tube, power row tube, power cable protection tube, etc. The cable protection tube is mainly installed underground or on the ground to protect the cable from corrosion and damage, prevent short-circuit accidents caused by disconnection of the power line, and cause communication cables and wire ropes to be charged, so as to protect cables, switches, core boards, and the whole machine. If it is burned out, it also has a certain isolation effect on the interference of the power line magnetic field. Cable protection tubes generally need to be used in various harsh environments, including seabed, snow, and saline-alkali environments. Due to the harsh use environment, it is necessary to strengthen and modif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L69/00C08L29/04C08L1/28C08L5/08C08K13/02C08K5/09C08K5/14C08K5/01C08K5/03C08K3/24C08K3/28C08K3/14C08K3/38C08K3/34C08K5/098H02G9/06
Inventor 黄振华徐进杨博何健化晨冰公绪波
Owner STATE GRID CORP OF CHINA
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