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Sheath layer material for power cables under 15 kV and more

A power cable and sheath layer technology, which is applied in the field of sheath layer materials for power cables of 15kV and above, can solve the problems of low tensile strength, poor flame retardancy of the sheath layer, and no protective barrier, etc., and achieve high tensile strength , Guarantee reasonable use and obvious effect of use

Inactive Publication Date: 2017-10-24
TONGLING CITY TONGDOU SPECIAL CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The function of the protective layer is to protect the power cable from the intrusion of external impurities and moisture, and to prevent the external force from directly damaging the power cable. However, in the prior art, the flame retardancy of the sheath layer is often poor, and the tensile strength is low. protective barrier

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A sheath layer material for 15kV and above power cables, the raw materials of which include by weight: 60 parts of methyl vinyl silicone rubber, 45 parts of chlorosulfonated polyethylene, 22 parts of polypropylene, 120 parts of filling and reinforcing agent, wood 0.8 parts of sodium sulfonate, 4 parts of oxidized soybean oil, 1.5 parts of methyl silicone oil, 2 parts of zinc oxide, 1.5 parts of lanthanum oxide, 4 parts of alkylated diphenylamine, 2 parts of anti-ultraviolet absorbing agent, 6 parts of vulcanizing agent, 2 parts of container.

Embodiment 2

[0016] A sheath layer material for 15kV and above power cables, the raw materials of which include by weight: 80 parts of methyl vinyl silicone rubber, 25 parts of chlorosulfonated polyethylene, 30 parts of polypropylene, 110 parts of filling and reinforcing agent, wood 1.6 parts of sodium sulfonate, 2 parts of oxidized soybean oil, 3.5 parts of methyl silicone oil, 1 part of zinc oxide, 2.5 parts of lanthanum oxide, 2 parts of alkylated diphenylamine, 4 parts of anti-ultraviolet absorbing agent, 4 parts of vulcanizing agent, 4 parts of container.

[0017] The filling reinforcing agent includes by weight: 25 parts of zinc hydroxide compound, 35 parts of zeolite powder, 25 parts of mica powder, 8 parts of medical stone powder, and 16 parts of fumed silicon dioxide.

[0018] The magnesium hydroxide compound is prepared by the following process: mix magnesium hydroxide, starch, stearic acid, and water evenly, add sodium hydroxide to adjust the pH value of the system to 7.6-8.2, a...

Embodiment 3

[0020] A sheath layer material for 15kV and above power cables, the raw materials of which include by weight: 65 parts of methyl vinyl silicone rubber, 40 parts of chlorosulfonated polyethylene, 24 parts of polypropylene, 118 parts of filling and reinforcing agent, wood 1 part of sodium sulfonate, 3.5 parts of oxidized soybean oil, 2 parts of methyl silicone oil, 1.8 parts of zinc oxide, 1.8 parts of lanthanum oxide, 3.5 parts of alkylated diphenylamine, 2.5 parts of anti-ultraviolet absorbing agent, 5.5 parts of vulcanizing agent, iso 2.5 parts of propyl dioleate (dioctyl phosphate acyloxy) titanate.

[0021] The filling and reinforcing agent includes by weight: 35 parts of zinc hydroxide compound, 25 parts of zeolite powder, 35 parts of mica powder, 4 parts of medical stone powder, and 22 parts of fumed silicon dioxide.

[0022] The magnesium hydroxide compound is prepared by the following process: mix 35 parts of magnesium hydroxide, 15 parts of starch, 4 parts of stearic a...

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Abstract

The invention discloses a sheath layer material for power cables under 15 kV and more. The sheath layer material includes, by weight, 60-80 parts of methyl vinyl silicone rubber, 25-45 parts of chlorosulfonated polyethylene, 22-30 parts of polypropylene, 110-120 parts of a filling and reinforcing agent, 0.8-1.6 parts of sodium lignin sulfonate, 2-4 parts of oxidized soya bean oil, 1.5-3.5 parts of methyl silicone oil, 1-2 parts of zinc oxide, 1.5-2.5 parts of lanthanum oxide, 2-4 parts of alkylated diphenylamine, 2-4 parts of an anti-ultraviolet absorbent, 4-6 parts of a vulcanizer, and 2-4 parts of a compatilizer. The sheath layer material has reasonable formula, wherein the raw materials are convenient to prepare. The sheath layer material has high temperature resistance and certain flame retarding capability, is low-smoke and flame-retarding, can avoid safety accident due to excessive high temperature of cable cores, and has high tensile strength, significant effects and guarantees reasonable application of power cables.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to a sheath layer material for 15kV and above power cables. Background technique [0002] The use of power cables has been more than a hundred years. The basic structure of power cables consists of four parts: core, insulation layer, shielding layer and protective layer. The core is the conductive part of the power cable and is used to transmit electric energy. The main part, the insulating layer is to electrically isolate the core from the ground and the cores of different phases to ensure power transmission, and is an indispensable part of the power cable structure. Power cables of 15kV and above generally have a conductor shielding layer and an insulating shielding layer. The function of the protective layer is to protect the power cable from the intrusion of external impurities and moisture, and to prevent the external force from directly damaging the power cable. However...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L23/34C08L23/12C08L97/00C08L83/04C08L91/00C08L3/02C08K13/02C08K3/22C08K5/18C08K5/5399C08K3/34C08K3/36C08K5/09H01B3/28
CPCC08K2003/221C08K2003/2296C08K2201/014C08L83/04C08L2201/02C08L2201/08C08L2203/202C08L2205/025C08L2205/035H01B3/28C08L23/34C08L23/12C08L97/00C08L91/00C08L3/02C08K13/02C08K3/22C08K5/18C08K5/5399C08K3/34C08K3/346C08K3/36C08K5/09
Inventor 赵家玉
Owner TONGLING CITY TONGDOU SPECIAL CABLE CO LTD