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Signal cable

A signal cable and cable core technology, applied in the field of signal cables with new structure, can solve the problem of train safety factor threat, can not be shielded from interference sources, etc., achieve strong shielding performance, ensure electrical stability and moisture resistance, excellent aging resistance Effects of performance and mechanical strength

Inactive Publication Date: 2014-01-08
江苏通鼎光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In some places where the electromagnetic field interference is serious, the existing shielding methods cannot completely shield all the interference sources. In this case, the safety factor of the train will be greatly threatened

Method used

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  • Signal cable

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Embodiment Construction

[0017] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0018] figure 1 A signal cable is shown, comprising a cable core 1 and an outer sheath 12 coated outside the cable core 1, the cable core 1 is provided with a non-hygroscopic insulating layer 7, and the non-hygroscopic insulating layer 7 is longitudinally Covered with a comprehensive sheath 8, the comprehensive sheath 8 is provided with a welded pipe aluminum sheath 9, and the welded pipe aluminum sheath 9 is provided with a polyethylene adhesive sheath 10, and the polyethylene adhesive sheath 10 and Double steel tape armor layers 11 are arranged between the outer sheaths 12 .

[0019] The cable core 1 is provided with several pairs of wire groups or quadruple wire groups. The pair of wire groups is formed by twisting two insulated single wires 2 of different colors, and the quadruple wire group is formed by twisting four insulated single wires 2 of d...

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Abstract

The invention relates to a signal cable. The signal cable comprises a cable core and an outer protecting bush wrapping the cable core. A non-hygroscopicity insulating layer is arranged outside the cable core, a comprehensive protecting layer longitudinally warps the non-hygroscopicity insulating layer, a welded pipe aluminum protecting bush is arranged outside the comprehensive protecting layer, a polyethylene adhesive protecting layer is arranged outside the welded pipe aluminum protecting bush, a double-steel-belt armour layer is arranged between the polyethylene adhesive protecting layer and the outer protecting bush, a plurality of twines or a plurality of quads are arranged in the cable core, each twine is formed by twisting two single insulating wires of different colors, and each quad is formed by twisting four single insulating wires of different colors. Each single insulating wire is composed of a cooper conductor, an inner insulating layer wrapping the periphery of the copper conductor, a copper wire weaving shielding layer wrapping the inner insulating layer, and an outer insulating layer wrapping the periphery of the copper wire weaving shielding layer.

Description

technical field [0001] The invention relates to a cable, in particular to a signal cable with a new structure. Background technique [0002] In the prior art, there are three main methods of cable shielding, one is to individually shield all the four-wire groups in the cable core; the other is to longitudinally wrap or wrap aluminum-plastic composite tape outside the cable core; the other is to Pipe aluminum sheath is welded outside the cable core. Nowadays, with the speed increase of passenger dedicated lines and existing railways, the performance requirements for cable crosstalk and anti-interference are more stringent. Although these three shielding methods in the prior art can achieve certain anti-crosstalk and anti-interference capabilities, the problem of crosstalk interference between wire pairs and single wires in the cable core still exists from time to time. [0003] In some places where the electromagnetic field interference is serious, the existing shielding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/06H01B11/08H01B7/02
Inventor 沈小平周江骆素琼
Owner 江苏通鼎光电科技有限公司
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