CN102682883A - Railway digital signal transmission cable - Google Patents
Railway digital signal transmission cable Download PDFInfo
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- CN102682883A CN102682883A CN201110381654XA CN201110381654A CN102682883A CN 102682883 A CN102682883 A CN 102682883A CN 201110381654X A CN201110381654X A CN 201110381654XA CN 201110381654 A CN201110381654 A CN 201110381654A CN 102682883 A CN102682883 A CN 102682883A
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- digital signal
- signal transmission
- cable core
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Abstract
The invention provides a railway digital signal transmission cable, which comprises a cable core and an outer sheath and is characterized in that the cable core is twisted into a cable by a shielding four-wire group, a coefficient of variance (CV) belt winding and covering layer, a double-side aluminum plastic composite belt layer, an anti-corrosion layer, an inner pad layer, an armor layer and an outer sheath are sequentially arranged on the cable core, the shielding four-wire group is formed by installing two layers of CV belt winding and covering layers and a shielding layer on a wire group formed by twisting four insulation wire cores, and the shielding layer is arranged between the two CV belt winding and covering layers. The railway digital signal transmission cable has the advantages that the structure is scientific and reasonable, the production and the manufacture are easy, the cost is low, the transmission performance is stable and reliable, and the excellent anti-jamming performance is realized. The cable meets the technical requirements of the cable on a control device and equipment of a signal system in railway traffics, the traffic management capability and the efficiency are favorably and further improved, and the occurrence of major traffic accidents is avoided.
Description
Technical field
The present invention relates to a kind of structure of railway digital signal cable, belong to the cable technology field.
Background technology
Along with the high speed development of railway traffic cause, the safety of traffic has become the problem that the whole society pays close attention to.The speed of railway traffic is more and more faster, and traffic administration is more and more concentrated, the variation of data mode.In order to guarantee the normal operation of this system; Guarantee traffic safety; Reduce the appearance of traffic accident and the severity of traffic accident; Minimizing personnel and property loss then need high-performance, high-strength signal cable supporting with it, and existing be that common cable that the cable core of power line, holding wire stranding adds oversheath can not satisfy in the railway traffic in the signal system connection between the relevant devices and control device and uses cable by earth connection and insulated wire cores.
Summary of the invention
The object of the invention is exactly for satisfying the needs of railway traffic development, a kind of railway digital signal transmission cable that satisfies the railway traffic system requirements being provided.
The objective of the invention is to realize through improvement to existing cable; The railway digital signal transmission cable; Comprise cable core and oversheath; It is characterized in that said cable core is by the stranded stranding of shielding quad; On cable core, set gradually CV band lapping layer, two-sided plastic-aluminum combined belt, anticorrosive coat, inner cushion layer, armour and oversheath, described shielding quad is to constitute with one deck screen by on the stranded line group of four insulated cores two-layer CV band lapping layer being set, and screen is arranged on two-layer CV and is with in the middle of the lapping layer.
Described insulated wire cores constitutes on the round copper wire conductor, adopting the three-layer co-extruded technology of physical blowing to extrude the polyethylene foamed insulating barrier.
The present invention is scientific and reasonable for structure, manufactures easily, and cost is low, and transmission performance is reliable and stable, has excellent interference free performance.Conductor adopts the anaerobic round copper wire, adopts the three-layer co-extruded insulation of physical blowing, makes cable have good electric property.Cable core is a unit concentric stranding stranding with the shielding quad, can keep traffic signals quality and voice communication quality, and electric property is stable.The anti-electromagnetic interference capability of the wrapped shielding of aluminium strip is strong, and anticorrosive coat, inner cushion layer, armour are set, and further improves the external anti-electromagnetic interference capability of cable, improves cable machinery intensity and useful life.This cable satisfies the equipment and the control device of signal system in the railway traffic and uses the cable specification requirement, helps further improving traffic administration ability and efficient, avoids the generation of serious accident.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: conductor 1, insulating barrier 2, CV band lapping layer 3, screen 4, prick layer 5, two-sided plastic-aluminum combined belt 6, anticorrosive coat 7, inner cushion layer 8, armour 9, oversheath 10.
Embodiment
Conductor 1 adopts the anaerobic round copper wire, and insulating barrier 2 adopts the polyethylene foamed material.On anaerobic round copper wire conductor 1, adopt the three-layer co-extruded technology of physical blowing to extrude the polyethylene foamed insulating barrier and constitute insulated wire cores.Be twisted into quad with four insulated cores, wrapped two layers of CV band lapping layer 3 constitutes the shielding quad with one deck copper strips screen 4 on the quad, and screen is arranged in the middle of the two-layer CV band lapping layer.Be provided with on the cable core with many shielding quad strandings and prick layer 5, on the bundle layer, set gradually two-sided plastic-aluminum combined belt 6, PUR anticorrosive coat 7, polyethylene inner cushion layer 8, steel wire armour 9 and oversheath 10.
Claims (2)
1. railway digital signal transmission cable; Comprise cable core and oversheath; It is characterized in that said cable core is by the stranded stranding of shielding quad; On cable core, set gradually and prick layer, two-sided plastic-aluminum combined belt, anticorrosive coat, inner cushion layer, armour and oversheath, described shielding quad is to constitute with one deck screen by on the stranded line group of four insulated cores two-layer CV band lapping layer being set, and screen is arranged on two-layer CV and is with in the middle of the lapping layer.
2. railway digital signal transmission cable according to claim 1 is characterized in that described insulated wire cores constitutes on the round copper wire conductor, adopting the three-layer co-extruded technology of physical blowing to extrude the polyethylene foamed insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110381654XA CN102682883A (en) | 2011-11-28 | 2011-11-28 | Railway digital signal transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110381654XA CN102682883A (en) | 2011-11-28 | 2011-11-28 | Railway digital signal transmission cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102682883A true CN102682883A (en) | 2012-09-19 |
Family
ID=46814659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110381654XA Pending CN102682883A (en) | 2011-11-28 | 2011-11-28 | Railway digital signal transmission cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102682883A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928142A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Damp-proof and anti-corrosion insulating cable for tunnels |
| CN104733097A (en) * | 2015-02-26 | 2015-06-24 | 安徽华成电缆有限公司 | Anti-stretching insulating cable |
-
2011
- 2011-11-28 CN CN201110381654XA patent/CN102682883A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928142A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Damp-proof and anti-corrosion insulating cable for tunnels |
| CN104733097A (en) * | 2015-02-26 | 2015-06-24 | 安徽华成电缆有限公司 | Anti-stretching insulating cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |