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Data cable special for high-speed railway

A special data and cable technology, applied in the field of high-speed rail special data cables, can solve the problems of poor data cable strength and affecting service life, and achieve the effect of improving strength and improving tensile and compressive performance.

Inactive Publication Date: 2014-12-31
申晓华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, most data cables have poor strength, which affects the service life

Method used

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  • Data cable special for high-speed railway

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0015] Such as figure 1 As shown, a special data cable for high-speed rail includes four sets of wire cores 1, the four sets of wire cores 1 are longitudinally covered with a layer of corrugated bare copper strips, and a wire is placed longitudinally between the four sets of wire cores and the copper strip The drain wire 7 constitutes the copper tape shielding layer 3, and the copper tape shielding layer is covered with a heat insulation layer 4, an aluminum sheath 5, an inner cushion layer 6, a steel tape armor layer 8, and an outer sheath 9 in sequence, so that Two high-strength steel wires parallel to each other and arranged along the longitudinal direction of the cable are arranged at the center of the wall thickness of the outer sheath 9 . Wherein, the four groups of wire cores are formed by twisting insulated wire cores 2 o...

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Abstract

The invention discloses a data cable special for a high-speed railway. The data cable comprises four groups of cable cores, wherein the four groups of cable cores are longitudinally wrapped with a layer of embossed bare copper strip; meanwhile, a discharge line is longitudinally arranged between the four groups of cable cores and the copper strip, thereby constructing a copper strip shielding layer; the copper strip shielding layer is coated with a heat insulating layer, an aluminum sheath, an inner cushion layer, a copper strip armor layer and an outer jacket in sequence; and two high-strength steel wires which are parallel to each other and are arranged along the longitudinal direction of the cable are arranged at the central position of the wall thickness of the outer sheath. Compared with the prior art, the data cable has the advantages that a multi-combination shielding structure is adopted, so that high information transmission property can be kept in the magnetic field environment of a magnetically levitated train, and the design requirements of large information amount, low attenuation and resistance electromagnetic environment interference are met; and moreover, the strength and the compressive property are enhanced.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a special data cable for high-speed rail. Background technique [0002] The continuous train speed automatic control system is a railway signal technology developed to adapt to the high traffic density of rail transit and high-speed railway. In order to form an ATC system, a multi-information channel needs to be established between the ground and the vehicle, and corresponding data cables need to be developed. This special cable must be able to meet the transmission performance at 10 frequencies at the same time to meet the design requirements of multi-information, low attenuation, and anti-electromagnetic environment interference. At the same time, most data cables have poor strength, which affects the service life. Contents of the invention [0003] The purpose of the present invention is to provide a special data cable for high-speed rail with a new structure, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/22
Inventor 申晓华
Owner 申晓华
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