Power cable with cross-linked polyethylene insulated polyvinyl chloride sheath

Abstract

The invention relates to the technical field of power cables, and especially relates to a power cable with a cross-linked polyethylene insulated polyvinyl chloride sheath. The power cable comprises aheat conduction filling core; an anti-interference layer is fixedly connected to the inner side of each of a plurality of uniformly distributed mounting holes formed in the heat conduction filling core; the inner side of each anti-interference layer is fixedly connected with a high-temperature-resistant layer; the inner side of each high-temperature-resistant layer is fixedly connected with an insulating layer; each insulating layer is internally provided with a spiral hole; the inner side of each spiral hole is provided with an inner wire core; the outer side of each inner wire core is fixedly connected with a plurality of uniformly distributed outer wire cores; and each outer wire core is fixedly connected to the inner side of the spiral hole. By arranging the heat conduction filling core, the high-temperature-resistant layer, the anti-interference layer, the tensile layer, a high-elasticity springback rope, a waterproof and damp-proof layer, a protective sheath and wear-resistant strips, the cable has high high-temperature resistance, heat conduction, tensile strength, wear resistance and the like, and has anti-interference, anti-breaking and springback functions and the like.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to cross-linked polyethylene insulated polyvinyl chloride sheathed power cables. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, power station lead lines, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas. XLPE insulated power cables are suitable for power frequency rated For fixed laying in distribution networks or industrial installations with a voltage of 0.6 / 1kV and below, the cross-linked power cables in the prior art have a single structure, a single function, poor high temperature resistance and thermal conductivity, easily cause heat accumulation, and have no resistance Interference function, and poor wear resistance, resulting in easy damage to the sheath, for this reason, we proposed a c...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems in the prior art that the cross-linked power cables in the prior art have single structure, single function, poor high temperature resistance and thermal conductivity, easy to cause heat accumulation, no anti-interference function, and wear-resistant Poor performance, leading to the disadvantage of easy damage to the outer skin, and the proposed cross-linked polyethylene insulated PVC sheathed power cable

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