Novel high-iron graphene semi-conductive shielding cable

Abstract

A novel high-iron graphene semi-conductive shielding cable comprises a conductor, a conductor shielding layer, an insulating layer and an insulating shielding layer are arranged outside the conductorin a three-layer co-extrusion mode, and the conductor shielding layer and the insulating shielding layer are graphene semi-conductive shielding layers. A Tetoron belt layer, a metal shielding layer, an inner sheath layer, a metal armor layer and an outer sheath layer are sequentially arranged outside the insulating shielding layer from inside to outside; the metal shielding layer is composed of acopper wire sparse winding layer and a copper belt wrapping layer which are arranged outside the Tetoron belt layer, and the copper wire sparse winding direction of the copper wire sparse winding layer is opposite to the copper belt wrapping direction of the copper belt wrapping layer. The novel high-iron graphene semi-conductive shielding cable provided by the invention can solve the problems that the existing cable cannot meet the requirements of power supply safety and special use conditions, and has the advantages of excellent comprehensive use performance, excellent electrical performanceand physical performance, excellent waterproof, rat-proof and ant-proof comprehensive protection effects and safe and reliable use, and the service life is prolonged by about two times compared withthat of the traditional cable.

Description

technical field [0001] The invention relates to a cable used in the high-speed rail field, in particular to a novel graphene semi-conductive shielded cable for high-speed rail. Background technique [0002] my country's electrified railway mileage will rank second in the world only after Russia. Moreover, it will enter the world's advanced ranks in terms of electrification rate, electrification double-track rate, proportion of railway traffic carried by electrified railways, technical equipment level of electrified railways, and train operating speed. [0003] The electric energy required by the high-speed electric locomotive comes from the power plant, which is supplied by the power supply and consumption system consisting of transmission lines, substation devices, traction power networks, and return circuits. The power supply system adopted by countries in the world is different. The electrified railway in our country has chosen the 25 kV single-phase power frequency (50 ...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a new type of high-iron graphene semi-conductive shielded cable, which can solve the problems that the existing cables cannot meet the safety of power supply and special use conditions, and has excellent comprehensive performance, excellent electrical and physical properties, waterproof, Excellent comprehensive protection against rodents and termites, safe and reliable in use, and the service life is about 2 times longer than that of traditional cables

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