Composite type conductive plastic sheath run-through ground wire special for railroad

Abstract

The invention discloses a composite type conductive plastic sheath run-through ground wire special for a railroad. The ground wire comprises a cable body, wherein the cable body comprises a conductor, a distributed optical fiber and a composite conductive plastic outer sheath; the conductor is a tinned soft copper conductor; the composite conductive plastic outer sheath is arranged on the exterior of the conductor; and one distributed optical fiber is placed between the conductor and the composite conductive plastic outer sheath. The outer sheath material adopts composite type carbon fiber filled conductive plastic; carbon fibers are relatively high in strength and modulus, low in electrical resistivity, excellent in conductivity, high in electromagnetic shielding effect, relatively high in corrosion resistance, free of pollution to soil and underground water, and relatively high in environment protection property; and in addition, one distributed optical fiber is placed between the conductor and the composite conductive plastic outer sheath for measuring the operation condition of the run-through ground wire, so that the ground wire has a wire breaking alarm function.

Description

technical field [0001] The invention relates to the field of railway wires and cables, in particular to a composite conductive plastic sheathed through-ground wire specially used for railways. Background technique [0002] In my country's trunk railways and high-speed railways, on the left and right sides of the track, a railway through-ground wire is laid along the entire length of the line, and the left and right two through-ground wires are connected horizontally every 50 meters, thus forming a comprehensive railway grounding system. The ground wire is the most important part of the railway comprehensive grounding system. [0003] At present, the through-ground conductor material used in my country's railways is mainly copper. Copper has good corrosion resistance to the atmosphere, sea water, fresh water, alkali and non-oxygen acids, but it is resistant to various oxygen-containing or oxidizing acids, alkali solutions and Very easy to corrode in ammonia salt. The use envi...

AI Technical Summary

Problems solved by technology

In addition, if the through ground wire is lost or damaged, if it cannot be found and repaired in time, it will have a serious impact on the safety of railway transportation.

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