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Aging-resistant power cable

A power cable, anti-aging technology, applied in the direction of power cables with shielding layer/conductive layer, insulated cables, cables, etc., can solve the problem of poor compatibility between graphene and polymer matrix, affecting the effect of cable breakdown resistance and cable insect resistance To improve the effect of aging resistance, excellent thermal performance and promote dispersion

Active Publication Date: 2020-12-22
江苏洪能电缆有限公司
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Problems solved by technology

[0014] In order to solve the problem that the graphene in the cable shielding material in the prior art cannot be uniformly dispersed in the polymer matrix and the compatibility between graphene and the polymer matrix is ​​very poor, which affects the anti-breakdown effect of the cable, and the insect-proof effect of the cable is not good. Technical problem, the present invention proposes following technical scheme:

Method used

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Embodiment 1

[0038] An aging-resistant power cable, comprising a conductor, the outer side of the conductor is wrapped with a conductor shielding layer, the outer side of the conductor shielding layer is wrapped with an insulating rubber layer, the outer side of the insulating rubber layer is a wrapping layer, and the outer side of the wrapping layer is It is a rubber protective layer, and the surface of the rubber protective layer is coated with an insect repellent; the conductor shielding layer is a graphene shielding material, and the insect repellent is cycloheximide. There is a waterproof layer between the wrapping layer and the rubber protective layer. The conductor is a copper conductor. The preparation process of described graphene shielding material comprises the steps:

[0039] S1 configures H with a volume ratio of 9:1 2 SO 4 / H3 PO 4 Mixed acid, add the mixed acid to the mixture of flake graphite / potassium permanganate with a mass ratio of 1:7, and exotherm to 35°C;

[004...

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Abstract

The invention relates to an aging-resistant power cable, which comprises a conductor. The outer side of the conductor is wrapped with a conductor shielding layer. The outer side of the conductor shielding layer is wrapped with an insulating rubber layer. A wrapping layer is arranged outside the insulating rubber layer. A rubber protective layer is arranged outside the wrapping layer. The surface of the rubber protective layer is coated with a pest control agent. The conductor shielding layer is made of a graphene shielding material. The power cable has good aging resistance and can adapt to various extreme environments.

Description

technical field [0001] The invention relates to a power cable, in particular to an aging-resistant power cable. Background technique [0002] With the acceleration of urbanization and modernization in our country, the domestic power system is constantly being improved. Various large-scale hydroelectric power stations, large-scale intensive development of coal, hydraulic power, nuclear energy, and renewable new energy power stations are all under construction. This has led to an increase in the demand for XLPE insulated medium and high voltage power cables year by year. IEC 502 stipulates that cables with a rated voltage above 1.8 / 3.0kV and insulated with polyvinyl chloride and ethylene propylene rubber, and a rated voltage above 3.6 / 6.0kV must use inner and outer semi-conductive shielding layers. [0003] In recent years, my country has been committed to improving the quality level of semi-conductive shielding layers and narrowing the gap with foreign advanced levels. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/02H01B7/282C01B32/184C08L23/08C08K9/04C08K3/04
Inventor 李洪芳
Owner 江苏洪能电缆有限公司
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