A production process and cable for intelligent monitoring traction cables for high-speed railways

Abstract

The invention discloses a production process of an intelligent monitoring traction cable for high-speed rail and the cable. The production process includes preparing an insulating wire core, a semiconducting resistance hose, a metal wire shielding layer, an embedded waterproof layer, a water blocking layer, and a non-magnetic wire protection layer. layer, water and flame retardant layer and outer sheath layer. The production process of the metal wire shielding layer is to arrange a plurality of monitoring optical fibers and metal shielding wires evenly outside the semiconducting resistance hose, and the monitoring optical fibers and metal shielding wires are spirally wound on the outer peripheral surface of the semiconducting resistance hose, The twisting coefficient remains consistent; the production process of the non-magnetic wire protective layer is to arrange a plurality of disturbing optical fibers and non-magnetic wires evenly and closely outside the water blocking layer. The present invention realizes the real-time collection of cable operating parameters and has high measurement accuracy, long monitoring range, and reliable structure. At the same time, it can quickly locate the fault of the monitoring abnormal point, and online predicts the damage to the cable from the outside world. It has strong engineering adaptability and is not affected Electromagnetic interference, with high engineering economy and practicality.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a production process of an intelligent monitoring traction cable for high-speed rail and the cable. Background technique [0002] With the rapid development of my country's high-speed railway construction, the application of 27.5kV high-voltage cables in high-speed railway traction power supply systems is becoming more and more common, and the rapid development and wide application of intelligent sensing, signal processing, computers, and communication technologies have made high-speed railways It is possible to realize visual management of operation and lines. However, due to the influence of production process, accessory quality, and installation process, the failure rate of 27.5kV high-voltage cables that have been in operation is relatively high, and the manual inspection method caused by cable equipment failures is difficult to monitor the operating status of 27.5kV high-volta...

AI Technical Summary

Problems solved by technology

However, due to the influence of production process, accessory quality, and installation process, the failure rate of 27.5kV high-voltage cables that have been in operation is relatively high, and the manual inspection method caused by cable equipment failures is difficult to monitor the operating status of 27.5kV high-voltage cables buried underground. Accurate discrimination

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