CN103646687B - Many compound high electromagnetic shielding track traffic communicaton and signal cables - Google Patents
Many compound high electromagnetic shielding track traffic communicaton and signal cables Download PDFInfo
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- CN103646687B CN103646687B CN201310722424.4A CN201310722424A CN103646687B CN 103646687 B CN103646687 B CN 103646687B CN 201310722424 A CN201310722424 A CN 201310722424A CN 103646687 B CN103646687 B CN 103646687B
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Abstract
The invention discloses compound high electromagnetic shielding track traffic communicaton and signal cable more than one, including at least one star quad, star quad lapped insulation band, plastic-aluminum aluminium strip or aluminum-plastic-aluminum film after stranding is stranded form the stranding cable core of the first screen layer, stranding cable core is externally provided with secondary shielding layer, secondary shielding layer is externally provided with the 3rd screen layer, 3rd screen layer is outer to be indulged bag shaped by lapping through plastic-aluminum or compound copper-plastics band and extrudes one layer of sheath formation the 4th screen layer, it is provided with the 5th screen layer outside described 4th screen layer, outside the 5th screen layer, is cased with outer jacket.The present invention has and can ensure excellent transmission performance in highfield and strong magnetic field circumstance, ensures the transmission reliable, stable of Train Control communication and signal message, thus improves train advantage of safe operation in the track traffic electromagnetic interference environment of various complexity.
Description
Technical field
The present invention relates to a kind of traffic communication signal cable, be specifically related to compound high electromagnetic shielding track traffic communicaton and signal cable more than one.
Background technology
Track traffic communicaton and signal cable, as realizing train commander and the important means of train operation and management, becomes guarantee train safe, improves the indispensable critical equipment of conevying efficiency.In track traffic safe train operation, how to ensure track traffic signal of communication safety, stable transmission, the important process that always industry is paid close attention to for a long time, in the application of former industry like product, there is the special sector of some electromagnetic field bad environments, there is the situation of error code and distortion in signal of communication information, especially when train enters or leaves this section, this deleterious situation is even more serious, for being effectively improved the transmission quality of information, develop the cable of a kind of anti-strong electromagnetic, eliminate accident potential that may be present, become a unavoidable major issue.
Summary of the invention
The invention aims to overcome above deficiency, one is provided to use multilamellar different metal shielding material, reasonably combine, form compound shielding construction, ensure that this cable has high shielding properties, for provide train safe fast, on schedule high density run without interruption and provide the how compound high electromagnetic shielding track traffic communicaton and signal cable of reliably guarantee.
The purpose of the present invention is achieved through the following technical solutions: a kind of many compound high electromagnetic shielding track traffic communicaton and signal cables, including at least one star quad, star quad lapped insulation band after stranding is stranded, plastic-aluminum aluminium strip or aluminum-plastic-aluminum film form the stranding cable core of the first screen layer, stranding cable core is externally provided with secondary shielding layer, secondary shielding layer is externally provided with the 3rd screen layer, 3rd screen layer is outer to be indulged bag shaped by lapping through plastic-aluminum or compound copper-plastics band and is extruded into one layer of sheath formation the 4th screen layer, it is provided with the 5th screen layer outside described 4th screen layer, it is cased with outer jacket outside 5th screen layer.
Further improvement of the present invention is: described plastic-aluminum aluminium strip or aluminum-plastic-aluminum film can also be moulded with plastic-aluminum, copper, copper-plastic-copper band or the nonmagnetic metal paper that conducts electricity very well substitute, for the product of different shielding requirements grades, can be with the plastic-aluminum of different-thickness or plastic-aluminum aluminium strip or aluminum-plastic-aluminum film.
Further improvement of the present invention is: described star quad uses the stranded rear formation of insulated single wire of four different colours, and stranding cable core twisting pitch is 12～18 times of twisted cable core diameter.
Further improvement of the present invention is: described stranding cable core includes six star quads, four insulated single wire strand pitch in six star quads are different, dredging polyester yarn or other materials non-hygroscopic around different colours outside each star quad and prick yarn, the star quad of different colours polyester yarn correspondence difference twisting pitch distinguishes.
Further improvement of the present invention is: described secondary shielding layer is that at least one of which uses closing lay arrangement or the copper cash of braiding, improve the mounting characteristics of cable, make cable soft, to be naturally laid in and compare narrow space, tinned copper wire, silver-gilt copper wire, aluminum, aluminum-alloy wire or aluminum alloy strip can also be used for making cable be more easy to installation.
Further improvement of the present invention is: described 3rd screen layer by the wrapped plastic-aluminum aluminium strip of a ply or aluminum-plastic-aluminum film, copper moulds band or metal foiled paper is formed.
Further improvement of the present invention is: described plastic-aluminum or compound copper-plastics band overlap more than 6mm during vertical bag shaped by lapping, and sheath is bonded on described plastic-aluminum or compound copper-plastics band.
Further improvement of the present invention is: described 5th screen layer is to use the double-deck or wrapped softness being formed as improving cable in monolayer height magnetic conduction steel band gap and mounting characteristics that high magnetic conduction braided steel wire can also be used to be formed.
Make different metal screen layers located adjacent one another as far as possible in combination screen layer, when using similar metal material to do screen layer, between the screen layer of same type of material, have certain interval rather than a certain screen layer of thickening simply as far as possible；The electromagnetic energy penetrated so can be made minimum, and increase reflection or the electromagnetic energy of attenuation.
The present invention compared with prior art has the advantage that by using plastic-aluminum aluminium strip or aluminum-plastic-aluminum film, copper cash stranded or braiding, plastic-aluminum or compound copper-plastics band, high magnetic conduction steel band are combined, form compound shielding construction, cable is made to reach high effectiveness, with other fire resistant railway traffic signal cable products compared with in terms of capability of electromagnetic shielding index, many compound high electromagnetic shielding track traffic communicaton and signal cables have 3 times of raisings in the shielding properties index of highfield, high-intensity magnetic field.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention；
Label in figure: 1-star quad, 2-type insulating wrapping strip, 3-plastic-aluminum aluminium strip or aluminum-plastic-aluminum film, 4-stranding cable core, 5-secondary shielding layer, 6-the 3rd screen layer, 7-composite band, 8-sheath, 9-the 5th screen layer, 10-outer jacket.
Detailed description of the invention:
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment is only used for explaining the present invention, is not intended that limiting the scope of the present invention.
nullAs Fig. 1 shows the detailed description of the invention of a kind of many compound high electromagnetic shielding track traffic communicaton and signal cables of the present invention，Including at least one star quad 1，Each star quad 1 is by red、Green、In vain、4 insulated single wire compositions of Lan Si kind color，Every star quad 1 uses different twisting pitch to be twisted into respectively，Specifically，The distance being advanced axially relative when 4 insulated single wires in each star quad 1 were with spiral rotating one week is as pitch，Preferably six star quads 1 of the present invention，The pitch of each star quad 1 is the most different，Dredge polyester yarn or other materials non-hygroscopic around different colours outside each star quad and prick yarn，The star quad of different colours polyester yarn correspondence difference twisting pitch distinguishes，Two insulated single wires being in diagonal position in each star quad 1 become primary Ioops，Star quad 1 is wrapped PP type insulating wrapping strip 2 after stranding is stranded、Plastic-aluminum aluminium strip or aluminum-plastic-aluminum film 3 form stranding cable core 4，Stranding cable core 4 is the first screen layer，PP type insulating wrapping strip 2 can use other type insulating wrapping strips to be replaced，The star quad 1 that stranding cable core is more than 4 at least 1 is constituted，Stranding cable core twisting pitch is 12～18 times of twisted cable core diameter，The outer closing lay of stranding cable core 4 arranges one layer of copper cash and forms copper cash screen layer 5 or use one layer of copper cash of braiding to form secondary shielding layer 5，For further improving cable shield performance，It is not excluded for using multilamellar stranded or multi-layer braided one-tenth shielding construction，Or use tin plating、Silver-gilt copper wire or aluminum、Aluminum-alloy wire substitutes copper wire，Secondary shielding layer 5 is externally provided with the 3rd screen layer 6，3rd screen layer 6 moulds band or metal foiled paper for plastic-aluminum aluminium strip or aluminum-plastic-aluminum film or copper，3rd screen layer 6 is outer to be indulged bag shaped by lapping through plastic-aluminum or compound copper-plastics band 7 and extrudes one layer of sheath 8 and form the 4th screen layer，Composite band 7 overlaps during longitudinal tubing and have to be larger than more than 6mm，Sheath 8 should be bonded on aluminium-plastic tape 7，Sheath 8 should be complete，Without hole、Rupture，It is provided with the 5th screen layer 9 outside 4th screen layer，5th screen layer 9 is for using the double-deck or monolayer wrapped formation in height magnetic conduction steel band gap or using high magnetic conduction braided steel wire to be formed，It is cased with outer jacket 10 outside 5th screen layer 9，Outer jacket 10 should be complete，Without hole、Rupture.
Many compound high electromagnetic shielding track traffic communicaton and signal cables of the present invention are in order to avoid severe natural conditions and outside strong electromagnetic affect fire resistant railway traffic signal cable signal transmission quality, by using multilamellar different metal shielding material, reasonably combine, form compound shielding construction, ensure that this cable has high shielding properties, for providing train safe quick, on schedule high density run without interruption provide can be high guarantee, in highfield and strong magnetic field circumstance, ensure excellent transmission performance, ensure the reliable of Train Control communication and signal message, stable transmission.Thus improve train safe operation in the track traffic electromagnetic interference environment of various complexity.
Many compound high electromagnetic shielding track traffic communicaton and signal cables are at 0.8～1.2KHz frequency range quad mutual capacitance scope 38 ± 2nF/km, and method of testing meets the regulation of GB/T5441.2.Cable is respectively lower than 0.7dB/km, 1.6dB/km, 3.0dB/km to attenuation constant at 1KHz, 30 KHz, 90 KHz at 20 DEG C of lines, and method of testing meets the regulation of GB/T5441.7.On 4 cores and above specification cable cover(ing) induced voltage be the preferable screening factor test of 50V/km～200V/km less than 0.1, method of testing meets the regulation of GB/T5441.9.
Claims (3)
- null1. compound high electromagnetic shielding track traffic communicaton and signal cable more than a kind，It is characterized in that: described signal cable includes at least one star quad (1)，Described star quad (1) lapped insulation band (2) after stranding is stranded、Plastic-aluminum aluminium strip or aluminum-plastic-aluminum film (3) form the stranding cable core (4) of the first screen layer，Described stranding cable core (4) is externally provided with secondary shielding layer (5)，Described secondary shielding layer (5) is externally provided with the 3rd screen layer (6)，Described 3rd screen layer (6) is indulged bag shaped by lapping through plastic-aluminum or compound copper-plastics band (7) outward and extrudes one layer of sheath (8) formation the 4th screen layer，It is provided with the 5th screen layer (9) outside described 4th screen layer，It is cased with outer jacket (10) outside described 5th screen layer (9)，Described star quad (1) uses the stranded rear formation of insulated single wire of four different colours，Stranding cable core (4) twisting pitch is 12～18 times of twisted cable core diameter，Described secondary shielding layer (5) is that at least one of which uses closing lay arrangement or the copper cash of braiding、Tinned copper wire、Silver-gilt copper wire、Aluminum、Aluminum-alloy wire or aluminum alloy strip，Described 3rd screen layer (6) is by the wrapped plastic-aluminum aluminium strip of a ply or aluminum-plastic-aluminum film、Copper moulds band or metal foiled paper is formed，Described composite band (7) overlaps more than 6mm during vertical bag shaped by lapping，Described sheath (8) is bonded in described composite band (7)，Described 5th screen layer (9) is for using the double-deck or monolayer wrapped formation in height magnetic conduction steel band gap or using high magnetic conduction braided steel wire to be formed.
- The most compound high electromagnetic shielding track traffic communicaton and signal cables, it is characterised in that: plastic-aluminum aluminium strip or aluminum-plastic-aluminum film (3) plastic-aluminum, copper in described first screen layer are moulded, copper-plastic-copper band or the nonmagnetic metal paper that conducts electricity very well substitute.
- The most compound high electromagnetic shielding track traffic communicaton and signal cables, it is characterised in that: described stranding cable core (4) includes six star quads (1).
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| CN201310722424.4A CN103646687B (en) | 2013-12-24 | 2013-12-24 | Many compound high electromagnetic shielding track traffic communicaton and signal cables |
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| CN201310722424.4A CN103646687B (en) | 2013-12-24 | 2013-12-24 | Many compound high electromagnetic shielding track traffic communicaton and signal cables |
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| CN103646687A CN103646687A (en) | 2014-03-19 |
| CN103646687B true CN103646687B (en) | 2016-09-21 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6360912B2 (en) * | 2014-04-25 | 2018-07-18 | レオニ カーベル ゲーエムベーハー | Data cable |
| CN106876008A (en) * | 2017-02-22 | 2017-06-20 | 江苏通鼎光电科技有限公司 | A kind of inter-city rail transit cable |
| CN211455381U (en) * | 2020-01-02 | 2020-09-08 | 浙江兆龙互连科技股份有限公司 | High-speed cable and unit structure thereof |
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| US6310286B1 (en) * | 1996-09-16 | 2001-10-30 | Sony Corporation | Quad cable construction for IEEE 1394 data transmission |
| CN2550883Y (en) * | 2002-05-23 | 2003-05-14 | 上海电缆研究所 | Shield structure of communication cable |
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| CN200962352Y (en) * | 2006-09-29 | 2007-10-17 | 江苏东强股份有限公司 | High-speed signal cable for rail traffic |
| CN101901644A (en) * | 2009-05-31 | 2010-12-01 | 江苏亨通线缆科技有限公司 | Low-smoke halogen-free flame-retardant comprehensive shielded subway light rail signal cable |
| CN203659463U (en) * | 2013-12-24 | 2014-06-18 | 中天日立射频电缆有限公司 | A multi-composite highly-electromagnetic shielding rail traffic communication signal cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2771990Y (en) * | 2005-02-16 | 2006-04-12 | 吴江市光电通信线缆总厂 | High shielding performance railway digital signal cable |
| CN2909472Y (en) * | 2006-05-22 | 2007-06-06 | 江苏馨晟特种电缆有限公司 | Three-screen simple protection signal control cable |
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2013
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6310286B1 (en) * | 1996-09-16 | 2001-10-30 | Sony Corporation | Quad cable construction for IEEE 1394 data transmission |
| CN2552141Y (en) * | 2002-04-22 | 2003-05-21 | 宝胜科技创新股份有限公司 | Electromagnetic shielded signal cable |
| CN2550883Y (en) * | 2002-05-23 | 2003-05-14 | 上海电缆研究所 | Shield structure of communication cable |
| CN200959254Y (en) * | 2006-09-29 | 2007-10-10 | 江苏东强股份有限公司 | Rail signal electric cable with double mask |
| CN200962352Y (en) * | 2006-09-29 | 2007-10-17 | 江苏东强股份有限公司 | High-speed signal cable for rail traffic |
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Address after: 226000 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Nantong, Jiangsu Patentee after: Zhongtian RF cable Co., Ltd. Address before: 226000 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Nantong, Jiangsu Patentee before: Zhongtian Rili Rf Cable Co., Ltd. |