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Power cable for rolling stock

A technology for power cables and vehicles, applied in the field of power cables for locomotives and vehicles, to achieve the effects of long service life, improved shielding performance, and high shielding performance

Inactive Publication Date: 2012-10-31
JIANGSUSNGSHANG CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This structure is not suitable for medium voltage rolling stock cables

Method used

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  • Power cable for rolling stock

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Embodiment

[0025] As shown in the drawings, a power cable for locomotives is provided with a conductor 1, an isolation layer A2, a conductor shielding layer 3, an insulating layer 4, an insulating shielding layer 5, an insulating layer B6, and a metal shielding layer 7 from the inside to the outside. , isolation layer C8, wrapping tape 9, outer sheath 10. The conductor shielding layer 3, the insulating layer 4, and the insulating shielding layer 5 are uniformly extruded and wrapped outside the isolation layer A2 in a three-layer co-extruded manner.

[0026] Among them, the conductor 1 is made of tinned annealed copper conductor; the isolation layer A2 and the isolation layer B6 are made of semi-conductive cloth tape layer, and the wrapping tape 9 is made of non-woven wrapping tape; the insulating layer 4 is made of ethylene-propylene rubber; the metal shielding layer 7 is made of Tinned copper wire braiding layer; the outer sheath 10 is made of low-smoke halogen-free flame-retardant poly...

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PUM

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Abstract

The invention discloses a power cable for a rolling stock, and belongs to power cables for rolling stocks. The power cable is sequentially provided with a conductor, an isolated layer A, a conductor shielding layer, an insulating layer, an insulating shielding layer, an isolated layer B, a metal shielding layer, an isolated layer C, a taping belt and an outer sheath from inside to outside, wherein the conductor shielding layer, the insulating layer and the insulating shielding layer are uniformly extruded outside the isolated layer A in a triple extrusion manner. By the aid of the structure, the power cable for the rolling stock effectively overcomes the shortcomings of the prior art, is high in shielding performance, environment-friendly, ageing-resistant, low-temperature-resistant, soft, low-smoke, halogen-free, flame-retardant and high in safety performance, and more effectively meets the requirements of a 30kV rolling stock. The power cable has the advantages of high shielding performance, long service life and the like.

Description

technical field [0001] The invention relates to a power cable, in particular to a power cable for rolling stock. Background technique [0002] At present, ordinary rolling stock uses ordinary power cables, which have defects such as inability to resist oil, poor shielding effect, and low service life in actual use. As one of the important electrical supporting products of rolling stock, rolling stock cables are used in a harsh environment for 30kV rolling stock and have higher safety requirements. [0003] The patent with the publication number CN 201331942Y (patent number: 200820239385.7) discloses a "flexible cable for railway rolling stock", which is provided with a polyester film layer outside the conductor, and an insulating layer is provided outside the polyester film layer. There is no shielding layer in the cable, and the insulation layer has no external protection, so the shielding effect is general and easily damaged. This structure is not suitable for medium vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02
Inventor 李斌袁杰谈建伟王永财乜福君李玉英刘振华
Owner JIANGSUSNGSHANG CABLE GROUP
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