CN203895180U - High-power railway communication signal control photo-electricity composite cable - Google Patents
High-power railway communication signal control photo-electricity composite cable Download PDFInfo
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- CN203895180U CN203895180U CN201420221029.8U CN201420221029U CN203895180U CN 203895180 U CN203895180 U CN 203895180U CN 201420221029 U CN201420221029 U CN 201420221029U CN 203895180 U CN203895180 U CN 203895180U
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- cable
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- cable core
- railway communication
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- 239000002131 composite material Substances 0.000 title claims abstract description 6
- 230000005622 photoelectricity Effects 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 12
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- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 230000011664 signaling Effects 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 12
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- 229910052751 metal Inorganic materials 0.000 claims description 12
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- 230000004888 barrier function Effects 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 8
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- 229910000861 Mg alloy Inorganic materials 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
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- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 claims description 3
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Abstract
The utility model discloses a high-power railway communication signal control photo-electricity composite cable which comprises a cable core. The cable core comprises a plurality of wire pairs of single wires, twines, three-wire sets and star twisting sets which are twisted. The cable core is filled with water-stopping filler materials such as cable water-stopping factice and water-stopping yarn. The outer side of the cable core is sequentially coated with a water-stopping layer, a shielding layer, a lining layer, an armor layer and an outer protection layer. The wire pairs are formed by twisting two insulation wire cores and the like in an equal pitch mode, and the twisting pitches of every two adjacent wire pairs are different. Each insulation wire core is a conductor with the diameter ranging from 1.4mm to 1.8mm, and the outer side of each insulation wire core is coated with an insulating layer made of a crosslinked polyethylene material. The insulating layers are colored or printed with figure identifications in a spraying mode. The interior of the cable core comprises a photo-communication unit formed by a plurality of optical fibers, and the wire pairs or the filled single wires. An alarm wire is embedded in the shielding layer. According to the high-power railway communication signal control photo-electricity composite cable, the actual use performance is greatly improved on the premise of ensuring the original excellent electrical performance of the cable.
Description
Technical field
The utility model relates to a kind of railway cable, relates in particular to a kind of high-power Source of Railway Communication and Signalling and controls photoelectric comprehensive cable.
Background technology
Existing railway digital signal cable is to meet railroad industry standard TB/T 2476 < < railway signal cable > > and TB/T3100 < < railway digital signal cable > >, and the solid or polyethylene foamed insulated single wire that the structure of its cable conductor is 1.0mm by conductor diameter forms.
For a long time, in the use of railway various types of signal cable, work as and need large electric current, when the control information transmission of longer transmission distance or power supply, by the use in parallel of many cores, this mode is not only made troubles to construction, the more important thing is owing to being multicore parallel connection, in actual applications when wherein one or several wire are disconnected, because other wire is still in on-state, but because circuit is now in abnormal condition, the transmission of its control information and power supply have all made signal controlling or actuating equipment in abnormal condition, the cable laying along the railway for a long time in vibration environment under, this connected mode very easily causes indivedual wire fractures, when indivedual wire fracture, this serious accident hidden danger state can not show, thereby just covered, this traffic safety to train causes great threat.
For railway signal engineering, cable earth fault is also a very stubborn problem, because cable is not always embedded in cable trough, but in the cable trough that the circuit both sides that is laid in has been reserved, add crossed construction, unavoidably occur cable to be injured by a crashing object and cause the situation of cable core ground connection, as failed, find in time or repair, because being used, cable having the section that very strong-electromagnetic field disturbs, electric current in cable shield just may be directed in cable core, the high reject signal of introducing in transmission heart yearn like this can cause misoperation or the damage equipment of terminal equipment, can threaten greatly train traffic safety equally.
Traditional railway signal control communication also relies on electric transmission channel completely, development along with railway signal technology, to have transmission capacity large because of it for the system of Optical Fiber Transmission, antijamming capability is strong, communication is reliable and stable, the plurality of advantages such as long transmission distance, for railway signal control and communication provide better solution.
Because the geographical environment of Along Railway is complicated; cable can not guarantee the dry section that is always laid in; usually can be placed on humidity or have the location of water; cable is inner as invaded moisture; its insulation property will significantly decline; also to guarantee that cable has good waterproof and dampproof performance, to guarantee cable safe handling for a long time in this special environment for this reason.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, provides a kind of safe and reliable high-power Source of Railway Communication and Signalling to control photoelectric comprehensive cable.
For achieving the above object, the utility model proposes following technical scheme:
A kind of high-power Source of Railway Communication and Signalling is controlled photoelectric comprehensive cable, comprise cable core, described cable core comprises single line, to line group, three line groups, many groups such as star quad stranding group are stranded line pair mutually, in described cable core, be filled with the packing material that blocks water, described cable core outside is coated with water blocking layer successively, screen, inner covering, armour and outer jacket, described cable core by the single line of organizing different wire diameters more, line pair, line group is stranded, different lines is to stranded with different pitches by many insulated wire cores, by the cooperation of twisting pitch, so that the cross-talk between line pair reaches minimum, described insulated wire cores is that diameter is the conductor of 1.4 ~ 1.8mm, and outside is coated with the insulating barrier of crosslinked polyethylene material, described insulating barrier adopts color or spray printing to have Digital ID, in described cable core, comprise the optical communication element being formed by multifiber, described screen is embedded with alarming line.
The dielectric coefficient of the described packing material that blocks water is suitable with the dielectric coefficient of described crosslinked polyethylene.
Described screen is aluminium strip, aluminium-plastic tape, and copper strips, one or more in compound copper-plastics band are by welding or push the metal screen layer of casting.
Described screen is the above composite construction of one deck, and between adjacent layer, is different metal.
Described screen is externally coated with erosion-resisting coating.
Described armour is the galvanized steel strip of two-layer high permeability, and it is wrapped outside at described inner covering, can adopt rolling lock armo.
Described conductor is tinned stranded wire, high-strength aluminium-magnesium alloy twisted wire, copper clad aluminum magnesium alloy twisted wire or single round copper wire.
Described optical communication element is one or more in G-layer strand dry type optical transmission unit, GX-central tube dry type light unit, GT-layer strand filled type light unit, GXT-central tube filled type light unit and GJPFJH-soft-type light unit.
Described alarming line is zinc-plated copper cash or copper cash bundle, and described alarming line connects warning system.
Compared with prior art, a kind of high-power Source of Railway Communication and Signalling that the utility model discloses is controlled comprehensive cable, has following features:
Insulated wire cores conductor diameter is 1.4 ~ 1.8mm, thereby makes the tension stress of conductor at least improve 80%, has increased substantially the reliability of cable under Long-term Vibration condition, if adopt alloy twisted wire simultaneously, makes cable have good bending property simultaneously;
The insulating barrier of insulated wire cores outside adopts twisted polyethylene cable resin dedicated, thereby make the long-term permission working temperature of cable bring up to 90 ℃, or even 125 ℃, 5s short circuit temperature allows to bring up to 250 ℃, and series of physical, the chemical properties such as resistance to wear, chemical proofing, stress crack resistant have had very large improvement;
In cable core, possess electric unit simultaneously, add line and light unit, make the transmission of cable collection signal, power transmission and distribution and optical fiber communication, realize single line cable several functions;
By adopting aluminium sheath as screen, make shielding factor lower than 0.1, and in screen, increase alarming line connection warning device, by electromagnetic field, change the induced current producing and trigger at once alarm device, remind in time the misoperation of staff's terminating terminal equipment, eliminate safe hidden trouble;
Therefore the comprehensive cable that the utility model discloses is keeping, under the prerequisite of its original superior electrical performance, having improved widely actual serviceability.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of comprehensive cable described in the utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out to clear, complete description.
As shown in Figure 1, the high-power Source of Railway Communication and Signalling that the utility model discloses is controlled photoelectric comprehensive cable, by 1 or many stranded line forming of insulated wire cores 1 equal pitch of single insulated wire cores to 2, many groups line of different pitches forms cable core 4 to 2 with optical communication element 3, between the space of described cable core 4, be filled with the packing material 6 that blocks water, described core 4 outsides are coated with water blocking layer 7, screen 8 successively, inner covering 9, armour 10 and outer jacket 11.
Particularly: described insulated wire cores 1 comprises conductor 101 and is coated on the insulating barrier 102 of described conductor 101 outsides, tinned stranded wire or high-strength aluminium-magnesium alloy twisted wire or copper clad aluminum magnesium alloy twisted wire or single round copper wire that described conductor 101 is 1.4 ~ 1.8mm for diameter of section, described insulating barrier 102 adopts crosslinked polyethylene material, and described insulating barrier 102 has different colours, its surperficial spray printing has Digital ID.
Described line is undertaken stranded to 2 by the insulated wire cores 1 that indicates numeral identification of 1 or many different colours of single insulated wire cores, when many group lines are stranded to 2, adjacent lines is different to 2 twisting pitch, and by calculating the different pitch groups that coordinate, so that electromagnetic coupled is little between line pair, between line pair, cross-talk is little, after to the measurement of sample actual transmissions parameter, recommends following pitch to match.
Described optical communication element 3 outsides have multifiber and outside protective layer; described protective layer can be nonmetallic materials; also can be stainless steel sleeve pipe; described optical communication element 3 is one or more in G-layer strand dry type optical transmission unit, GX-central tube dry type light unit, GT-layer strand filled type light unit, GXT-central tube filled type light unit and GJPFJH-soft-type light unit; it can be used as the passage of additional communications functions in signal system, also can be used as the medium of the light transmission information of signal controlling.
In described cable core 4 preparation process; between the space of core 4, be filled with the packing material 6 that blocks water of communications cable special use; the described packing material 6 that blocks water can be greasy for preventing water or water blocking yarn etc.; the described packing material 6 that blocks water has good block-water effect; and its dielectric coefficient should be suitable with the dielectric coefficient of cross-linking polyethylene materials; and have good insulation property, so that cable is in the protection of good water proof environment and have a suitable transmission characteristic.
Described water blocking layer 7 adopts dry type material water-proof material, generally adopts waterstop, and its outside that surrounds cable core 4 is to improve the radial water-resisting characteristic of cable core 4.
For making cable safety applications in the environment of strong electromagnetic, outside at cable core, capital arranges the screen 8 of anti-electromagnetic interference, described screen 8 is the above composite construction of one deck, and between adjacent layer, be different metal band, to guarantee the shield effectiveness of cable to external magnetic field, described metal tape is aluminium strip, aluminium-plastic tape, copper strips, one or more in compound copper-plastics band are cast by welding or pushing, and also can carry out wrapped or vertical bag, but metal level will form the system of complete, the sealing of.Described metal tape adopts longitudinally welding or wrapped mode to be coated on water blocking layer 7 outsides, it is externally coated with erosion-resisting PUR or other equivalent material coatings, if metal tape thickness is greater than 0.5mm, embossing or embossing on described metal tape, so that cable has good bending property, in described screen 8, be also embedded with an alarming line 5.
(zinc-plated) copper cash or copper cash bundle that described alarming line 5 is exposed or tape insulation, when the outer jacket 11 of cable core 4 outsides and screen 8 are damaged, cable there will be the state of earth fault, in this situation, cable core 4 is because being subject to the interference of external electromagnetic field to produce induced current, the transmission to severe jamming normal signal that fails to be convened for lack of a quorum of this induced electricity, even cause the damage to equipment, and owing to increasing ground protection line 5 in cable core, when cable earth fault, on it, also produce induced current, alarming line using it as earth fault, be connected on special-purpose device, when it is taken in while having abnormal current, can show at once fault induced current, thereby for taking safeguard measure to facilitate at once.
It is outside that described inner covering 9 holds or be extruded in described metal screen layer, can be nonmetal band or the plastics of non-moisture absorption, and described inner covering 9 has good proof voltage impact, as the lightning protection layer of cable.
Described armour 10 is wrapped in described inner covering 9 outsides, galvanized steel strip for two-layer high permeability, adopt if desired rolling lock armo mode to improve the bending property of cable, the anti-external electromagnetic field that the galvanized steel strip of described high permeability has not only improved cable disturbs, the ability that also provides fabulous anti-exterior mechanical to impact and destroy.
Described outer jacket 11 is plastic protective sleeve, and its material is fire-retardant or non-fire-retardant, has the aging ability of anti-external corrosion agent, and plays the effect of termite-resistant rodent-resistant.
Described screen, except metal screen layer, can also be used comprehensive shielded layer, and cable is being met under the fail safe of stable operation and the prerequisite of reliability, the minimum bending radius of cable can be narrowed down to 12 times of cable external diameter.
Technology contents of the present utility model and technical characterictic have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; therefore; the utility model protection range should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present utility model and modifications, and contained by present patent application claim.
Claims (9)
1. a high-power Source of Railway Communication and Signalling is controlled photoelectric comprehensive cable, comprise cable core, described cable core comprises single line, to line group, three line groups, the many groups of star quad stranding group are stranded line pair mutually, in described cable core, be filled with the packing material that blocks water, described cable core outside is coated with water blocking layer successively, screen, inner covering, armour and outer jacket, it is characterized in that: described line is to stranded by many insulated wire cores equal pitchs, in cable core, include many groups line pair of different pitches, described insulated wire cores is the conductor of diameter 1.4～1.8mm, and outside is coated with the insulating barrier of crosslinked polyethylene material, described insulating barrier adopts colour code or spray printing Digital ID, in described cable core, comprise the optical communication element being formed by multifiber, described screen is embedded with alarming line.
2. a kind of high-power Source of Railway Communication and Signalling according to claim 1 is controlled photoelectric comprehensive cable, it is characterized in that: described in the dielectric coefficient of packing material that blocks water suitable with the dielectric coefficient of described crosslinked polyethylene.
3. a kind of high-power Source of Railway Communication and Signalling according to claim 1 is controlled photoelectric comprehensive cable, it is characterized in that: described screen is aluminium strip, aluminium-plastic tape, copper strips, one or more in compound copper-plastics band are by welding or push the metal screen layer of casting.
4. a kind of high-power Source of Railway Communication and Signalling according to claim 3 is controlled photoelectric comprehensive cable, it is characterized in that: described screen is the above composite construction of one deck, and between adjacent layer, is different metal.
5. a kind of high-power Source of Railway Communication and Signalling according to claim 3 is controlled photoelectric comprehensive cable, it is characterized in that: described screen is externally coated with erosion-resisting coating.
6. a kind of high-power Source of Railway Communication and Signalling according to claim 1 is controlled photoelectric comprehensive cable, it is characterized in that: the galvanized steel strip that described armour is two-layer high permeability, it is wrapped outside at described inner covering, can adopt rolling lock armo.
7. a kind of high-power Source of Railway Communication and Signalling according to claim 1 is controlled photoelectric comprehensive cable, it is characterized in that: described conductor is tinned stranded wire high-strength aluminium-magnesium alloy twisted wire, copper clad aluminum magnesium alloy twisted wire or single round copper wire.
8. a kind of high-power Source of Railway Communication and Signalling according to claim 1 is controlled photoelectric comprehensive cable, it is characterized in that: described optical communication element is one or more in G-layer strand dry type optical transmission unit, GX-central tube dry type light unit, GT-layer strand filled type light unit, GXT-central tube filled type light unit and GJPFJH-soft-type light unit.
9. a kind of high-power Source of Railway Communication and Signalling according to claim 1 is controlled photoelectric comprehensive cable, it is characterized in that: described alarming line is zinc-plated copper cash or copper cash bundle, and described alarming line connects warning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221029.8U CN203895180U (en) | 2014-05-04 | 2014-05-04 | High-power railway communication signal control photo-electricity composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221029.8U CN203895180U (en) | 2014-05-04 | 2014-05-04 | High-power railway communication signal control photo-electricity composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895180U true CN203895180U (en) | 2014-10-22 |
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| CN201420221029.8U Expired - Lifetime CN203895180U (en) | 2014-05-04 | 2014-05-04 | High-power railway communication signal control photo-electricity composite cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928189A (en) * | 2014-05-04 | 2014-07-16 | 中天科技装备电缆有限公司 | High-power railway communication signal control photo-electricity composite cable |
-
2014
- 2014-05-04 CN CN201420221029.8U patent/CN203895180U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928189A (en) * | 2014-05-04 | 2014-07-16 | 中天科技装备电缆有限公司 | High-power railway communication signal control photo-electricity composite cable |
| CN103928189B (en) * | 2014-05-04 | 2017-01-18 | 中天科技装备电缆有限公司 | High-power railway communication signal control photo-electricity composite cable |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |