CN203659463U - A multi-composite highly-electromagnetic shielding rail traffic communication signal cable - Google Patents
A multi-composite highly-electromagnetic shielding rail traffic communication signal cable Download PDFInfo
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- CN203659463U CN203659463U CN201320858311.2U CN201320858311U CN203659463U CN 203659463 U CN203659463 U CN 203659463U CN 201320858311 U CN201320858311 U CN 201320858311U CN 203659463 U CN203659463 U CN 203659463U
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Abstract
The utility model discloses a multi-composite highly-electromagnetic shielding rail traffic communication signal cable comprising at least one star-shaped quad; the star-shaped quad is wrapped in a lapped mode by insulating wrapping belts, plastic-aluminum aluminium belts or plastic-aluminum aluminium films after cabling intertwist so as to form a cabling cable core of a first shielding layer; a second shielding layer is arranged outside the cabling cable core; a third shielding layer is arranged outside the second shielding layer; the outside of the third shielding layer is wrapped in a longitudinal mode by plastic-aluminum or copper-plastic composite belts, is moulded through overlapping joint, and then is wrapped by an inner protective layer an extruded mode, so that a fourth shielding layer forms; a fifth shielding layer is arranged outside the fourth shielding layer; and an outer protective layer wraps the outside of the fifth shielding layer. The multi-composite highly-electromagnetic shielding rail traffic communication signal cable of the utility model is advantageous in that the excellent transmission performance can be guaranteed in a strong electric field environment and a strong magnetic field environment; the reliable and stable transmission of train control communication and signal information are guaranteed; and the safe operation of a train in various complex rail traffic electromagnetic interference environments is improved.
Description
Technical field
The utility model relates to a kind of traffic communication signal cable, is specifically related to a kind of how compound high electromagnetic shielding track traffic communicaton and signal cable.
Background technology
Track traffic communicaton and signal cable, as the important means that realizes train commander and train operation and management, becomes and guarantees train safe, the indispensable critical equipment of raising conevying efficiency.In track traffic safe train operation, how to ensure track traffic signal of communication safety, stable transfer, it is the long-term important process of paying close attention to of industry always, in the application of former industry like product, there is the severe special sector of some electromagnetic field environment, there is the situation of error code and distortion in signal of communication information, especially in the time that train enters or leave this section, this unfavorable situation is even more serious, for the transmission quality of effective improvement information, develop a kind of cable of anti-strong electromagnetic, the accident potential that elimination may exist, become a unavoidable major issue.
Summary of the invention
The purpose of this utility model is in order to overcome above deficiency, a kind of multilayer different metal shielding material that adopts is provided, reasonably combine, form compound shielding construction, guarantee that this cable has high shielding properties, provide the how compound high electromagnetic shielding track traffic communicaton and signal cable of reliable guarantee for train safe being provided high density running without interruption fast, on schedule.
The purpose of this utility model is achieved through the following technical solutions: a kind of how compound high electromagnetic shielding track traffic communicaton and signal cable, comprise at least one star quad, star quad is 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, stranding cable core is provided with secondary shielding layer outward, secondary shielding layer is provided with the 3rd screen outward, the 3rd screen is indulged bag shaped by lapping and is extruded into one deck sheath formation the 4th screen through plastic-aluminum or compound copper-plastics band outward, described the 4th screen outside is provided with the 5th screen, the 5th screen overcoat has outer jacket.
Further improvement of the utility model is: described star quad adopts 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 utility model is: described stranding cable core comprises six star quads, four stranded spacing of insulated single wire in six star quads are different, outside each star quad, dredge around polyester yarn or the other materials non-hygroscopic of different colours and prick yarn, the star quad of the corresponding different twisting pitch of different colours polyester yarn distinguishes.
Further improvement of the utility model is: described secondary shielding layer is the copper cash of at least one deck tight stranded arrangement of employing or braiding, improve the mounting characteristics of cable, make the cable comparison narrow space that can soft, naturally be laid in, also can adopt tinned copper wire, silver-gilt copper wire, aluminium, aluminum-alloy wire or aluminum alloy strip for cable is more easily installed.
Further improvement of the utility model is: described the 3rd screen moulds band by the wrapped plastic-aluminum aluminium strip of a ply or aluminum-plastic-aluminum film, copper or metal foiled paper forms.
Further improvement of the utility model is: described plastic-aluminum or compound copper-plastics band overlap joint in vertical bag shaped by lapping process is greater than 6mm, and sheath is bonded on described plastic-aluminum or compound copper-plastics band.
Further improvement of the utility model is: described the 5th screen is to adopt wrapped softness and the mounting characteristics that is formed as improving cable of bilayer or the high magnetic conduction steel band of individual layer gap also can adopt high magnetic conduction braided steel wire to form.
Make as much as possible different metal screen layers located adjacent one another in combination in screen, when adopting while doing screen with metalloid material, between the screen of same type of material, have as far as possible certain interval, rather than a certain screen of thickening simply; Can make like this electromagnetic energy minimum penetrating, and strengthen the electromagnetic energy of reflection or attenuation.
The utility model compared with prior art has the following advantages: 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 to combine, form compound shielding construction, make cable reach high effectiveness, compared with aspect capability of electromagnetic shielding index, how compound high electromagnetic shielding track traffic communicaton and signal cable has 3 times of raisings in the shielding properties index of highfield, high-intensity magnetic field with other fire resistant railway traffic signal cable products.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Number in the 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, 7-composite band, 8-sheath, 9-the 5th screen, 10-outer jacket.
embodiment:
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection range.
As Fig. 1 shows the embodiment of a kind of how compound high electromagnetic shielding track traffic communicaton and signal cable of the utility model, comprise 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 is used respectively different twisting pitch to be twisted into, specifically, the distance that 4 insulated single wires in each star quad 1 advance during take spiral rotating one week is vertically as pitch, the utility model is six star quads 1 preferably, the pitch of each star quad 1 is all different, each star quad is dredged outward around the polyester yarn of different colours or other materials non-hygroscopic and is pricked yarn, the star quad of the corresponding different twisting pitch of different colours polyester yarn distinguishes, two insulated single wires in diagonal position in each star quad 1 become a loop, 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, PP type insulating wrapping strip 2 can adopt other type insulating wrapping strips to replace, 4 at least 1 above star quads 1 of stranding cable core form, stranding cable core twisting pitch is 12～18 times of twisted cable core diameter, the outer tight stranded arrangement layer of copper line of stranding cable core 4 forms copper cash screen 5 or adopts braiding layer of copper line to form secondary shielding layer 5, for further improving cable shield performance, do not get rid of and adopt the stranded or multi-layer braided one-tenth shielding construction of multilayer, or adopt zinc-plated, silver-gilt copper wire or aluminium, aluminum-alloy wire substitutes copper wire, outer the 3rd screen 6 that is provided with of secondary shielding layer 5, the 3rd screen 6 is moulded band or metal foiled paper for plastic-aluminum aluminium strip or aluminum-plastic-aluminum film or copper, the 3rd screen 6 outer process plastic-aluminum or compound copper-plastics band 7 are indulged bag shaped by lapping and are extruded one deck sheath 8 and form the 4th screen, more than composite band 7 overlaps and must be greater than 6mm in vertical wrap molding process, sheath 8 should be bonded on aluminium-plastic tape 7, sheath 8 should be complete, without hole, break, the 4th screen outside is provided with the 5th screen 9, the 5th screen 9 is for adopting bilayer or the wrapped formation in the high magnetic conduction steel band of individual layer gap or adopting high magnetic conduction braided steel wire to form, the 5th screen 9 overcoats have outer jacket 10, outer jacket 10 should be complete, without hole, break.
How compound high electromagnetic shielding track traffic communicaton and signal cable described in the utility model is to affect fire resistant railway traffic signal cable signal transmission quality for fear of severe natural conditions and outside strong electromagnetic, by adopting multilayer different metal shielding material, reasonably combine, form compound shielding construction, guarantee that this cable has high shielding properties, for providing train safe quick, high density runs without interruption on schedule provides guarantee that can be high, in highfield and strong magnetic field circumstance, ensure excellent transmission performance, ensure the reliable of Train Control communication and signal message, stable transfer.Thereby 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 in 0.8～1.2KHz frequency range quad mutual capacitance scope, 38 ± 2nF/km, the regulation of test method conforms GB/T5441.2.Cable at 20 ℃ of lines to attenuation constant at 1KHz, 30 KHz, 90 KHz respectively lower than 0.7dB/km, 1.6dB/km, 3.0dB/km, the regulation of test method conforms GB/T5441.7.The desirable shielding factor test that on 4 cores and above specification cable cover(ing), induced voltage is 50V/km～200V/km is less than 0.1, the regulation of test method conforms GB/T5441.9.
Claims (7)
1. compound high electromagnetic shielding track traffic communicaton and signal cable more than a kind, it is characterized in that: described signal cable comprises at least one star quad (1), described star quad (1) is 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, the outer secondary shielding layer (5) that is provided with of described stranding cable core (4), outer the 3rd screen (6) that is provided with of described secondary shielding layer (5), described the 3rd screen (6) is outer to be indulged bag shaped by lapping and extrudes one deck sheath (8) formation the 4th screen through plastic-aluminum or compound copper-plastics band (7), described the 4th screen outside is provided with the 5th screen (9), described the 5th screen (9) overcoat has outer jacket (10).
2. how compound high electromagnetic shielding track traffic communicaton and signal cable according to claim 1, it is characterized in that: described star quad (1) adopts the stranded rear formation of insulated single wire of four different colours, and stranding cable core (4) twisting pitch is 12～18 times of twisted cable core diameter.
3. how compound high electromagnetic shielding track traffic communicaton and signal cable according to claim 2, is characterized in that: described stranding cable core (4) comprises six star quads (1).
4. how compound high electromagnetic shielding track traffic communicaton and signal cable according to claim 1, is characterized in that: described secondary shielding layer (5) adopts copper cash, tinned copper wire, silver-gilt copper wire, aluminium, aluminum-alloy wire or the aluminum alloy strip of tight stranded arrangement or braiding for one deck at least.
5. how compound high electromagnetic shielding track traffic communicaton and signal cable according to claim 1, is characterized in that: described the 3rd screen (6) by the wrapped plastic-aluminum aluminium strip of a ply or aluminum-plastic-aluminum film, copper moulds band or metal foiled paper forms.
6. how compound high electromagnetic shielding track traffic communicaton and signal cable according to claim 1, is characterized in that: described composite band (7) overlap joint in vertical bag shaped by lapping process is greater than 6mm, and described sheath (8) is bonded in described composite band (7).
7. how compound high electromagnetic shielding track traffic communicaton and signal cable according to claim 1, is characterized in that: described the 5th screen (9) is for adopting bilayer or the wrapped formation in the high magnetic conduction steel band of individual layer gap or adopting high magnetic conduction braided steel wire to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858311.2U CN203659463U (en) | 2013-12-24 | 2013-12-24 | A multi-composite highly-electromagnetic shielding rail traffic communication signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858311.2U CN203659463U (en) | 2013-12-24 | 2013-12-24 | A multi-composite highly-electromagnetic shielding rail traffic communication signal cable |
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| Publication Number | Publication Date |
|---|---|
| CN203659463U true CN203659463U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858311.2U Expired - Fee Related CN203659463U (en) | 2013-12-24 | 2013-12-24 | A multi-composite highly-electromagnetic shielding rail traffic communication signal cable |
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| Country | Link |
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| CN (1) | CN203659463U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646687A (en) * | 2013-12-24 | 2014-03-19 | 中天日立射频电缆有限公司 | Multi-composite rail transit communication signal cable with high electromagnetic shielding |
| CN105261411A (en) * | 2015-11-16 | 2016-01-20 | 安徽光复电缆有限公司 | High-performance and anti-nuclear explosion type electromagnetic pulse special cable |
| CN107039114A (en) * | 2017-03-22 | 2017-08-11 | 合肥浦尔菲电线科技有限公司 | A kind of fire-resistant wire and its production technology |
-
2013
- 2013-12-24 CN CN201320858311.2U patent/CN203659463U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646687A (en) * | 2013-12-24 | 2014-03-19 | 中天日立射频电缆有限公司 | Multi-composite rail transit communication signal cable with high electromagnetic shielding |
| CN103646687B (en) * | 2013-12-24 | 2016-09-21 | 中天日立射频电缆有限公司 | Many compound high electromagnetic shielding track traffic communicaton and signal cables |
| CN105261411A (en) * | 2015-11-16 | 2016-01-20 | 安徽光复电缆有限公司 | High-performance and anti-nuclear explosion type electromagnetic pulse special cable |
| CN107039114A (en) * | 2017-03-22 | 2017-08-11 | 合肥浦尔菲电线科技有限公司 | A kind of fire-resistant wire and its production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |