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Insulation material for medium voltage rubber insulation cable

A technology for insulating cables and insulating materials, which can be applied to insulators, circuits, electrical components, etc., and can solve problems such as inability to prepare high-flexible medium-voltage cables.

Active Publication Date: 2006-06-07
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the technical problem that the existing technology cannot prepare high-flexible medium-voltage cables, especially to solve the technical problem of preparing a cable whose bending diameter is 6 times the outer diameter of the cable, the present invention proposes an insulating material for high-flexible medium-voltage rubber insulated cables

Method used

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Embodiment Construction

[0010] The present invention selects low-hardness, high-flexibility EPDM rubber mixture as the insulating material, which can meet the high flexibility requirements of cables, and the EPDM rubber has good electrical properties, which can fully meet the requirements of medium-voltage cables. Since medium and high voltage cables must adopt a semi-conductive shielding layer, the invention also includes the formula and processing technology of the shielding material.

[0011]

[0012] Among them, EPDM is a product of the Dutch National Mining Company (DSM), and the brand name is Keltan 2470. The conductive carbon black is VXC-72 produced by Cabot Corporation (CABOT). The calcined clay is Translink 37, a calcined and surface-treated clay produced by ENGELHARD. Antiaging agent is 2,2,4-trimethyl-1,2-dihydroquinoline (RD). The organic peroxide is dicumyl peroxide (DCP) and the coupling agent is vinyl tris(methoxyethoxy)silane (A-172). The wax is paraffin. The processing...

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Abstract

This invention relates to the insulation and conduction compound material especially to an insulation material used in a high soft medium voltage plastic insulating cable computed in the component mass including: EPT rubber: 100, calcined china clay: 50-100, anti-aged agent: 1-3, organic peroxide: 2-4, coupler: 1-2, wax: 2-8, processed oil: 5-20, which can prepare a cable with the bending diameter 6 times of external diameter.

Description

technical field [0001] The invention relates to the technical field of insulating and conducting composite materials, in particular to an insulating material for high-flexibility and medium-voltage rubber insulated cables. Background technique [0002] Medium voltage rubber insulated cables are a commonly used product, such as IEC60502 and IEC92-354, etc. have relevant regulations on medium voltage rubber insulated cables. It has a wide range of uses, including land, water, civilian and military uses. Ethylene-propylene rubber has a wide service temperature, which can maintain performance at 150°C, and is still flexible at -40°C. The temperature resistance level is usually 105°C, and the emergency is 140°C, which means that the carrying capacity can be increased by 7 to 8%. . Ethylene-propylene rubber has excellent electrical properties, its dielectric constant and dielectric loss tangent are very small, it has outstanding water resistance and corona resistance, and stable...

Claims

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Application Information

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IPC IPC(8): H01B3/00
Inventor 曾纪刚刘旌平陈佶民
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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