Multi-core combined electric power cable

Abstract

The invention relates to a multi-core combined electric power cable, which comprises oxygen-free copper conductors, and is characterized in that each oxygen-free copper conductor is externally provided with an inner shielding layer, the inner shielding layer is externally provided with an inner insulating layer, the inner insulating layer is externally provided with an outer shielding layer, the outer shielding layer is externally provided with an outer insulating layer, the oxygen-free copper conductor, the inner shielding layer, the inner insulating layer, the outer shielding layer and the outer insulating layer form a conductive unit, the conductive units are externally provided with a filled layer, the filled layer is externally provided with a non-woven fabric wrapping layer, the non-woven fabric wrapping layer is externally provided with an aluminum-plastic composite belt, the aluminum-plastic composite belt is externally provided with a polyester belt wrapping layer, the polyester belt wrapping layer is externally provided with a steel-tape armoring layer, the steel-tape armoring layer is externally provided with an outer sheath layer, and the diameter of each conductive element occupies 1 / 4 of the diameter of the cable body. The multi-core combined electric power cable is good in conductive performance, high in overall strength, capable of working continuously for a long time, safe, reliable, and long in service life.

Description

technical field [0001] The invention relates to a cable, in particular to a multi-core power cable. Background technique [0002] With the rapid development of the national economy, as the main artery of the national economy, the amount and scope of wire and cable are increasing. In recent years, power plants, substations, smelting and petrochemical industries have a great demand for cables. [0003] The current single-core power cables in the market cannot meet the requirements of use in some special occasions, and the structure is relatively simple and the functions are relatively few. However, due to unreasonable arrangement of the conductors in the multi-core cable, there will be an influence on each other, and the shielding effect is not good, and the filling layer in the multi-core cable is made of general materials, and the use effect is not ideal. In addition, the overall strength of the cable is not enough, and it cannot be erected for a long distance when used ov...

AI Technical Summary

Problems solved by technology

[0003] The current single-core power cables in the market cannot meet the requirements of use in some special occasions, and the structure is relatively simple and the functions are relatively few.

However, due to unreasonable settings, the conductors in the multi-core cable will affect each other, and the shielding effect is not good, while the filling layer in the multi-core cable is made of general materials, and the use effect is not ideal.

In addition, the overall strength of the cable is not enough, and it cannot be erected for a long distance when used overhead

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