Railway carriage cable

Abstract

The invention relates to a railway passenger car cable. It includes several wire cores, the wire cores include conductor annealed copper wire or tinned annealed copper wire, the conductor annealed copper wire or tinned annealed copper wire is provided with insulating layer polyolefin or polyethylene, and the insulating layer polyolefin Or the polyethylene is provided with a high-temperature resistant polyester wrapping, and the high-temperature-resistant polyester wrapping is provided with a group shielding layer, and the group shielding layer is provided with a low-smoke, halogen-free, flame-retardant filling layer, and the low-smoke and non-halogen A high-temperature-resistant polyester wrap is arranged outside the halogen flame-retardant filling layer, and a general shielding layer is arranged outside the high-temperature-resistant polyester wrap, and a low-smoke halogen-free sheath layer is arranged outside the general shielding layer. The invention has excellent properties such as high temperature resistance, tensile strength, low smoke and no halogen. In case of fire, the power supply can be continued for a period of time. And no toxic gas is produced during combustion, which avoids secondary damage to the human body.

Description

technical field [0001] The invention relates to a railway passenger car cable, which belongs to the technical field of cables. Background technique [0002] As the main artery of the national economy, the country's important infrastructure and popular means of transportation, the status and role of railways in my country's economic and social development are crucial. For more than 30 years, my country's railways have maintained an average annual real growth rate of more than 9%. [0003] According to statistics from the China Railway Corporation, 9,531 kilometers of new lines were put into operation in my country in 2015. By the end of 2015, the operating mileage of railways exceeded 120,000 kilometers, including 19,000 kilometers of high-speed railways. The Outline of the Thirteenth Five-Year Plan for National Economic and Social Development states that during the 13th Five-Year Plan period, my country will speed up the improvement of the high-speed railway network, and th...

AI Technical Summary

Problems solved by technology

[0004] With large-scale railway construction, the demand for railway passenger car cables has also increased accordingly. The performance of existing railway passenger car cables is not ideal and needs to be improved.

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