CN106448914A - Rail transit flame-retardant four-pair shielded twisted-pair - Google Patents
Rail transit flame-retardant four-pair shielded twisted-pair Download PDFInfo
- Publication number
- CN106448914A CN106448914A CN201611161393.XA CN201611161393A CN106448914A CN 106448914 A CN106448914 A CN 106448914A CN 201611161393 A CN201611161393 A CN 201611161393A CN 106448914 A CN106448914 A CN 106448914A
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- CN
- China
- Prior art keywords
- pairs
- twisted
- pair
- retardant
- oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/08—Screens specially adapted for reducing cross-talk
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a rail transit flame-retardant four-pair shielded twisted-pair which comprises a central deconcentrator, oxygen-free copper conductors, PE (polyethylene) foam plastic insulating sheaths and a flame-retardant PVC (polyvinyl chloride) sheath. The PE foam plastic insulating sheaths externally coat the oxygen-free copper conductors and forms 8 core wires together with the oxygen-free copper conductors, every two core wires are stranded to form a twisted-pair, the four twisted-pairs are arranged in four corners of the cross-shaped central deconcentrator respectively, and the twisting distances of the four twisted-pairs are 9-10mm, 12-13mm, 10-11mm and 14-15mm respectively. By the mode, the twisted-pair is high in transmission efficiency, strong in signal interference resistance and long in service life, and has a fireproof performance.
Description
Technical field
The present invention relates to data cable field, more particularly to a kind of track traffic are with fire-retardant four pairs of Shielded Twisted Pairs.
Background technology
Current China's track traffic industry is in the booming epoch, and railway transportation has started high speed, heavy loading
New upsurge, urban track traffic has also obtained great development.Therefore to track traffic cable, including power cable, data
The demand of transmission cable etc. also accordingly increases, it is generally the case that multiple adverse circumstances are experienced in track traffic in the process of moving,
Therefore signal interference free performance to data transmission cable, fire protecting performance, service life etc. it is also proposed higher requirement.
Content of the invention
The present invention solves the technical problem of provide a kind of track traffic fire-retardant four pairs of Shielded Twisted Pairs, transmission effect
Rate is fast, signal strong antijamming capability, and with fire protecting performance, long service life.
For solving above-mentioned technical problem, one aspect of the present invention is：A kind of track traffic is provided with fire-retardant
Four pairs of Shielded Twisted Pairs, including：Center deconcentrator, oxygen-free cupreous, PE foaming plastics insulation crust, flame-proof PVC sheath, described
PE foaming plastics insulation crust is coated on outside the oxygen-free cupreous and is collectively forming heart yearn with the oxygen-free cupreous, the core
Line has 8, two-by-two one group of stranded composition, four pairs of twisted-pair feeders, and the center deconcentrator is in cross, and four pairs of twisted-pair feeders are respectively
It is arranged in four angles of cruciform central deconcentrator, the lay of four pairs of twisted-pair feeders is respectively：9-10mm、12-13mm、
10-11mm、14-15mm.
In a preferred embodiment of the present invention, outside four pairs of twisted-pair feeders, polyester fiber insulating tape is also wound with.
In a preferred embodiment of the present invention, on the inwall of the flame-proof PVC sheath, also pressing has at least one of which aluminum thin
Film screen layer.
In a preferred embodiment of the present invention, the line footpath of the oxygen-free cupreous is 0.56-0.58mm.
The invention has the beneficial effects as follows：The present invention adopts oxygen-free cupreous, and resistance is little, and efficiency of transmission is fast, is divided using center
Four pairs of twisted-pair feeders are spaced by line device, and combine the lay for limiting four pairs of twisted-pair feeders, it is possible to reduce electromagnetic interference, improve near-end
Crosstalk attenuation, making data transmission stability height, while adopting flame-proof PVC sheath, making cable have excellent fire resistance, use
Life-span length.
Description of the drawings
Fig. 1 is a kind of structural representation of the track traffic of the present invention with fire-retardant four pairs of Shielded Twisted Pairs, one preferred embodiment；
In accompanying drawing, the labelling of each part is as follows：1st, center deconcentrator, 2, oxygen-free cupreous, 3, PE foaming plastics insulation crust, 4,
Flame-proof PVC sheath, 5, polyester fiber insulating tape, 6, aluminium film screen layer.
Specific embodiment
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent clearly defines so as to make to protection scope of the present invention.
Fig. 1 is referred to, the embodiment of the present invention includes：
A kind of track traffic with fire-retardant four pairs of Shielded Twisted Pairs, including：Center deconcentrator 1, oxygen-free cupreous 2, PE foam plasticss
Insulation sheath 3, flame-proof PVC sheath 4；The PE foaming plastics insulation crust 3 be coated on the oxygen-free cupreous 2 outer and with described
Oxygen-free cupreous 2 is collectively forming heart yearn, and the wherein line footpath of the oxygen-free cupreous 2 is that 0.56-0.58mm, wire adopts anaerobic
Copper, its resistance is low, non-oxidizability is high, can improve data transmission efficiency；The heart yearn has 8, two-by-two one group of stranded composition four
To twisted-pair feeder, the center deconcentrator 1 is in cross, and four pairs of twisted-pair feeders are arranged separately on cruciform central deconcentrator 1
In four angles, using center deconcentrator, four pairs of twisted-pair feeders are spaced, it is possible to reduce electromagnetic interference, improve near-end crosstalk and decline
Subtract, the lay of four pairs of twisted-pair feeders is respectively：9-10mm, 12-13mm, 10-11mm, 14-15mm, restriction lay is less, letter
Number interference is little.
Preferably, polyester fiber insulating tape 5 being also wound with outside four pairs of twisted-pair feeders, can improve the shielding of twisted-pair feeder
Can, while the intensity of twisted-pair feeder can be improved so as to long service life.
On the inwall of the flame-proof PVC sheath 4, also pressing has at least one of which aluminium film screen layer 6, has resistance cable is made
Shielding propertiess are improved further can while combustion performance, to improve its signal interference free performance.
Present invention is disclosed a kind of track traffic, with fire-retardant four pairs of Shielded Twisted Pairs, using oxygen-free cupreous, resistance is little, pass
Defeated efficiency is fast, is spaced four pairs of twisted-pair feeders using center deconcentrator, and combines the lay for limiting four pairs of twisted-pair feeders, can subtract
Few electromagnetic interference, improves near-end crosstalk attenuation, makes data transmission stability height, while using flame-proof PVC sheath and intrinsic pressure at which
Conjunction has at least one of which aluminium film screen layer, makes cable have excellent fire resistance, antinoise signal jamming performance, and service life
Long.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (4)
1. a kind of track traffic is with fire-retardant four pairs of Shielded Twisted Pairs, it is characterised in that include：Center deconcentrator, oxygen-free cupreous,
PE foaming plastics insulation crust, flame-proof PVC sheath, the PE foaming plastics insulation crust is coated on outside the oxygen-free cupreous simultaneously
Heart yearn is collectively forming with the oxygen-free cupreous, the heart yearn has 8, two-by-two one group stranded constitute four pairs of twisted-pair feeders, described in
Heart deconcentrator is in cross, and four pairs of twisted-pair feeders are arranged separately in four angles of cruciform central deconcentrator, described four pairs
The lay of twisted-pair feeder is respectively：9-10mm、12-13mm、10-11mm、14-15mm.
2. track traffic according to claim 1 is with fire-retardant four pairs of Shielded Twisted Pairs, it is characterised in that four pairs of multiple twins
Polyester fiber insulating tape is also wound with outside line.
3. track traffic according to claim 1 is with fire-retardant four pairs of Shielded Twisted Pairs, it is characterised in that the flame-proof PVC
On the inwall of sheath, also pressing has at least one of which aluminium film screen layer.
4. track traffic according to claim 1 is with fire-retardant four pairs of Shielded Twisted Pairs, it is characterised in that the oxygen-free copper is led
The line footpath of line is 0.56-0.58mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161393.XA CN106448914A (en) | 2016-12-15 | 2016-12-15 | Rail transit flame-retardant four-pair shielded twisted-pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161393.XA CN106448914A (en) | 2016-12-15 | 2016-12-15 | Rail transit flame-retardant four-pair shielded twisted-pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448914A true CN106448914A (en) | 2017-02-22 |
Family
ID=58216658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611161393.XA Pending CN106448914A (en) | 2016-12-15 | 2016-12-15 | Rail transit flame-retardant four-pair shielded twisted-pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448914A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519387Y (en) * | 2002-01-31 | 2002-10-30 | 华为技术有限公司 | Transmission cable |
| US20130277090A1 (en) * | 2009-05-06 | 2013-10-24 | Panduit Corp. | Communication Cable with Improved Electrical Characteristics |
| US9251930B1 (en) * | 2006-08-11 | 2016-02-02 | Essex Group, Inc. | Segmented shields for use in communication cables |
| CN105679436A (en) * | 2015-12-31 | 2016-06-15 | 天长市富信电子有限公司 | High-speed high-shielding data line and production process therefor |
| CN205487460U (en) * | 2016-01-05 | 2016-08-17 | 广州市奥康通信设备有限公司 | Six types of shielded cable |
-
2016
- 2016-12-15 CN CN201611161393.XA patent/CN106448914A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519387Y (en) * | 2002-01-31 | 2002-10-30 | 华为技术有限公司 | Transmission cable |
| US9251930B1 (en) * | 2006-08-11 | 2016-02-02 | Essex Group, Inc. | Segmented shields for use in communication cables |
| US20130277090A1 (en) * | 2009-05-06 | 2013-10-24 | Panduit Corp. | Communication Cable with Improved Electrical Characteristics |
| CN105679436A (en) * | 2015-12-31 | 2016-06-15 | 天长市富信电子有限公司 | High-speed high-shielding data line and production process therefor |
| CN205487460U (en) * | 2016-01-05 | 2016-08-17 | 广州市奥康通信设备有限公司 | Six types of shielded cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |