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Outer sheath for splicing cables

An outer sheath and cable technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve problems such as endangering the safe operation of power grid lines, cracking of the main sheath layer, etc., to strengthen environmental adaptability, enhance Thermal insulation and aging resistance, good mechanical properties

Inactive Publication Date: 2017-09-26
ANHUI ELECTRIC GRP SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the actual maintenance process, it was found that there were many cracks in the main sheath layer between the cable conductors of the butt joint section. In order to reduce the bearing tension of the cable on the overhead line, it was necessary to strip the outer sheath of the cable and then connect with the overhead line. Therefore, The cable is exposed to rain and hot sun for a long time, and the main sheath layer of the cable is gradually weathered and cracked in many places under the irradiation of ultraviolet light for a long time, which seriously endangers the safety of the power grid line in the season of frequent thunderstorm activities in spring and summer. run

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The present invention proposes an outer sheath for a butt joint cable, and its raw materials include by weight: 50 parts of butyl rubber, 30 parts of polypropylene, 5 parts of chlorosulfonated polyethylene, 6 parts of crosslinking agent, soybean meal 20 parts of compound, 8 parts of nano diatomite, 1 part of superfine calcined kaolin, 2 parts of anti-aging agent 4010, 0.2 part of anti-aging agent RD, 2 parts of disproportionated rosin, 0.5 part of dimethyl silicone oil, 5 parts of stearic acid, hard 0.5 parts of magnesium fatty acid.

Embodiment 2

[0017] The present invention proposes an outer sheath for a butt joint cable, and its raw materials include, by weight, 80 parts of butyl rubber, 10 parts of polypropylene, 15 parts of chlorosulfonated polyethylene, 3 parts of crosslinking agent, soybean meal 30 parts of compound, 2 parts of nano diatomite, 5 parts of superfine calcined kaolin, 1 part of anti-aging agent 4010, 0.8 part of anti-aging agent RD, 1 part of disproportionated rosin, 1.5 parts of simethicone, 2 parts of stearic acid, hard 1.5 parts of magnesium fatty acid.

[0018] Soybean meal compound is prepared by the following process: stir soybean meal and sodium hydroxide, filter, wash until neutral, dry, pulverize, add cornstarch and water to stir, add sodium hydroxide to continue stirring, add prefabricated chitosan to continue Stir to obtain the soybean meal compound.

[0019] The prefabricated chitosan is prepared by the following process: chitosan, polyamide polyamine, and water are mixed and stirred eve...

Embodiment 3

[0021] The present invention proposes an outer sheath for a butt joint cable, and its raw materials include, by weight, 60 parts of butyl rubber, 25 parts of polypropylene, 8 parts of chlorosulfonated polyethylene, 5 parts of crosslinking agent, soybean meal 22 parts of compound, 6 parts of nano diatomite, 2 parts of superfine calcined kaolin, 1.8 parts of anti-aging agent 4010, 0.4 parts of anti-aging agent RD, 1.8 parts of disproportionated rosin, 0.8 parts of dimethicone, 4 parts of stearic acid, hard 0.8 parts of magnesium fatty acid.

[0022] The crosslinking agent includes by weight: 1 part of dibutyltin dilaurate, 0.6 part of dicumyl hydroperoxide, and 0.2 part of 2,6-di-tert-butyl-4-methylphenol.

[0023] The soybean meal compound is prepared by the following process: Stir 25 parts of soybean meal and 100 parts of sodium hydroxide solution with a concentration of 1.8 mol / L in parts by weight, filter, wash until it is neutral, dry and pulverize, and add 15 parts of corn...

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PUM

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Abstract

The invention discloses an outer sheath for a butt joint cable. The raw materials include: 50-80 parts of butyl rubber, 10-30 parts of polypropylene, 5-15 parts of chlorosulfonated polyethylene, cross-linked 3-6 parts of anti-aging agent, 20-30 parts of soybean meal compound, 2-8 parts of nano diatomite, 1-5 parts of superfine calcined kaolin, 1-2 parts of anti-aging agent 4010, 0.2-0.8 parts of anti-aging agent RD, disproportionation 1-2 parts of rosin, 0.5-1.5 parts of simethicone, 2-5 parts of stearic acid, and 0.5-1.5 parts of magnesium stearate. The invention has high thermal stability, excellent corrosion resistance and aging resistance, avoids the cracking of the sheath layer, and at the same time prevents armor corrosion caused by scratches on the outer sheath during construction, strengthens the environmental adaptability of the cable, and greatly prolongs the service life life.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to an outer sheath used for butt joint cables. Background technique [0002] During the actual maintenance process, it was found that there were many cracks in the main sheath layer between the cable conductors of the butt joint section. In order to reduce the bearing tension of the cable on the overhead line, it was necessary to strip the outer sheath of the cable and then connect with the overhead line. Therefore, The cable is exposed to rain and hot sun for a long time, and the main sheath layer of the cable is gradually weathered and cracked in many places under the irradiation of ultraviolet light for a long time, which seriously endangers the safety of the power grid line in the season of frequent thunderstorm activities in spring and summer. run. How to prepare a sheath material that is resistant to aging and can avoid cracks has become a technical problem that needs t...

Claims

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Application Information

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IPC IPC(8): C08L23/22C08L23/12C08L23/34C08L89/00C08L3/02C08L5/08C08L93/04C08L83/04C08K13/02C08K3/34C08K5/09C08K5/098C08K5/3437C08K5/14C08K5/13H01B3/44
CPCC08L23/22C08K2201/011C08K2201/014C08L2201/08C08L2203/202C08L2205/035H01B3/441
Inventor 赵建军黄海琴吴建杰
Owner ANHUI ELECTRIC GRP SHARES
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