CN104252902A - Data cable special for high-speed railway - Google Patents
Data cable special for high-speed railway Download PDFInfo
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- CN104252902A CN104252902A CN201310259256.XA CN201310259256A CN104252902A CN 104252902 A CN104252902 A CN 104252902A CN 201310259256 A CN201310259256 A CN 201310259256A CN 104252902 A CN104252902 A CN 104252902A
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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
the invention belongs to field of cable technology, be specifically related to a kind of high ferro exclusive data cable.
Background technology
continous way train speed automatic control system is the railway signal technology grown up for adapting to track traffic high rate of traffic flow and high-speed railway.In order to form ATC system, ground and car needing the passage setting up multi information, needing to develop corresponding data cable.This special cable must meet transmission performance under 10 frequencies to meet the designing requirement of multiple data quantity, low decay, the interference of anti-electromagnetic environment simultaneously.Meanwhile, the intensity of most of data cable is poor, thus have impact on useful life.
Summary of the invention
the object of the present invention is to provide a kind of high ferro exclusive data cable of new construction, good information transmission can be kept under the magnetic field environment of magnetic suspension train, and meet the designing requirement of multiple data quantity, low decay, the interference of anti-electromagnetic environment, and intensity is better, and compressive property is better.
for realizing this purpose, technical scheme of the present invention is: a kind of high ferro exclusive data cable, comprise four groups of cores, described four groups of cores are vertical bag one deck embossing bare copper strip outward, longitudinally place an earial drainage line between core and copper strips at four groups simultaneously and form copper strip shielding layer, described copper strip shielding layer is coated with thermal insulation layer, aluminium sheath, inner cushion layer, steel-tape armouring layer, oversheath outward successively, and described oversheath wall thickness middle position is provided with two and is parallel to each other and the high-tensile steel wires arranged along cable longitudinal direction.
as preferably, described four groups of cores form by the insulated wire cores of different colours is stranded, its outer cladding one deck non-hygroscopic type insulating wrapping strip.
as preferably, the copper strips thickness of described copper strip shielding layer is 0.15mm, and the thickness of described aluminium sheath is no less than 1.5mm.
as preferably, described steel-tape armouring layer selects high magnetic conduction steel band, and two steel band gap is wrapped on inner cushion layer.
as preferably, described oversheath is made up of the wrinkle composite steel-plastic belt moisture-proof layer and black polyethylene sheath indulging bag overlap joint.
as preferably, inside described thermal insulation layer, be also provided with a circle braided steel wire webbed skeleton resistance to compression layer.
compared with prior art, the system that present invention accomplishes is to cable transmission characteristic requirement, design is optimized, for reliable, the stable operation of system are laid a good foundation to the index such as characteristic impedance, working pair decay, angle of phase displacement of cable under operating frequency section; Cable adopts Multiple Combination shielding construction, and therefore cable descends the performance of its electromagnetism interference to be better than the conventional railway digital signal cable SPT of current electrified sections and SPTP product in working order, and the reliability of product is more secure.Arrange in the wall thickness central authorities of oversheath and form tension member by the high-tensile steel wires of two parallel placements, contribute to promoting cable strength, can play a protective role to cable when cable bears larger pulling force.Meanwhile, inside described thermal insulation layer, be provided with a circle braided steel wire webbed skeleton resistance to compression layer, improve the tensile and compressive property of cable further.
Accompanying drawing explanation
fig. 1 is cross-sectional view of the present invention.
wherein: 1. four groups of cores, 2. insulated wire cores, 3. copper strip shielding layer, 4. thermal insulation layer, 5. aluminium sheath, 6. inner cushion layer, 7. earial drainage line, 8. steel-tape armouring layer, 9. oversheath.
embodiment
the present invention is further described in conjunction with the embodiments with reference to the accompanying drawings.
as shown in Figure 1, a kind of high ferro exclusive data cable, comprise four groups of cores 1, the outer vertical bag one deck embossing bare copper strip of described four groups of cores 1, longitudinally place an earial drainage line 7 between core and copper strips at four groups simultaneously and form copper strip shielding layer 3, described copper strip shielding layer is coated with thermal insulation layer 4, aluminium sheath 5, inner cushion layer 6, steel-tape armouring layer 8, oversheath 9 outward successively, and described oversheath 9 wall thickness middle position is provided with two and is parallel to each other and the high-tensile steel wires arranged along cable longitudinal direction.Wherein, described four groups of cores form by the insulated wire cores 2 of different colours is stranded, its outer cladding one deck non-hygroscopic type insulating wrapping strip; The copper strips thickness of described copper strip shielding layer is 0.15mm, and the thickness of described aluminium sheath is no less than 1.5mm; Described steel-tape armouring layer selects high magnetic conduction steel band, and two steel band gap is wrapped on inner cushion layer; Described oversheath is made up of the wrinkle composite steel-plastic belt moisture-proof layer and black polyethylene sheath indulging bag overlap joint; A circle braided steel wire webbed skeleton resistance to compression layer is also provided with inside described thermal insulation layer.
the improvement that the present invention carries out mainly for the high ferro exclusive data construction of cable, the foregoing is only present pre-ferred embodiments, non-ly therefore namely limit to the scope of the claims of the present invention, therefore the simple and easy change of such as doing by specification of the present invention and graphic content and equivalent transformation, all should be contained in the scope of the claims of the present invention.
Claims (6)
1. a high ferro exclusive data cable, comprise four groups of cores, it is characterized in that, described four groups of cores are vertical bag one deck embossing bare copper strip outward, longitudinally place an earial drainage line between core and copper strips at four groups simultaneously and form copper strip shielding layer, described copper strip shielding layer is coated with thermal insulation layer, aluminium sheath, inner cushion layer, steel-tape armouring layer, oversheath outward successively, and described oversheath wall thickness middle position is provided with two and is parallel to each other and the high-tensile steel wires arranged along cable longitudinal direction.
2. high ferro exclusive data cable according to claim 1, is characterized in that, described four groups of cores form by the insulated wire cores of different colours is stranded, its outer cladding one deck non-hygroscopic type insulating wrapping strip.
3. high ferro exclusive data cable according to claim 2, is characterized in that, the copper strips thickness of described copper strip shielding layer is 0.15mm, and the thickness of described aluminium sheath is no less than 1.5mm.
4. high ferro exclusive data cable according to claim 1, is characterized in that, described steel-tape armouring layer selects high magnetic conduction steel band, and two steel band gap is wrapped on inner cushion layer.
5. high ferro exclusive data cable according to claim 1, is characterized in that, described oversheath is made up of the wrinkle composite steel-plastic belt moisture-proof layer and black polyethylene sheath indulging bag overlap joint.
6. high ferro exclusive data cable according to claim 1, is characterized in that, is also provided with a circle braided steel wire webbed skeleton resistance to compression layer inside described thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259256.XA CN104252902A (en) | 2013-06-27 | 2013-06-27 | Data cable special for high-speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259256.XA CN104252902A (en) | 2013-06-27 | 2013-06-27 | Data cable special for high-speed railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104252902A true CN104252902A (en) | 2014-12-31 |
Family
ID=52187734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310259256.XA Pending CN104252902A (en) | 2013-06-27 | 2013-06-27 | Data cable special for high-speed railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104252902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741966A (en) * | 2016-05-04 | 2016-07-06 | 江苏亨通线缆科技有限公司 | Metal sheath bureau communication cable for rail transit |
-
2013
- 2013-06-27 CN CN201310259256.XA patent/CN104252902A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741966A (en) * | 2016-05-04 | 2016-07-06 | 江苏亨通线缆科技有限公司 | Metal sheath bureau communication cable for rail transit |
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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: 20141231 |