CN203799745U - Rail transportation-used halogen-free low-smoke flame-retardant direct-current transfer intertrip signal cable - Google Patents

Rail transportation-used halogen-free low-smoke flame-retardant direct-current transfer intertrip signal cable Download PDF

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Publication number
CN203799745U
CN203799745U CN201420215078.0U CN201420215078U CN203799745U CN 203799745 U CN203799745 U CN 203799745U CN 201420215078 U CN201420215078 U CN 201420215078U CN 203799745 U CN203799745 U CN 203799745U
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CN
China
Prior art keywords
layer
shielding
wrapped
cable
overlapping
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.)
Expired - Fee Related
Application number
CN201420215078.0U
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Chinese (zh)
Inventor
王敏
朱崤
韩惠福
冯保磊
李兵
赵树磊
高登攀
陈文龙
叶明扬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI SIAIT CABLES GROUP Co Ltd
Original Assignee
ANHUI SIAIT CABLES GROUP Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by ANHUI SIAIT CABLES GROUP Co Ltd filed Critical ANHUI SIAIT CABLES GROUP Co Ltd
Priority to CN201420215078.0U priority Critical patent/CN203799745U/en
Application granted granted Critical
Publication of CN203799745U publication Critical patent/CN203799745U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a rail transportation-used halogen-free low-smoke flame-retardant direct-current transfer intertrip signal cable. a polyethylene insulation layer is extruded on a conductor to form an insulation wire core; two insulation wire cores are twisted in a pair mode to form a wire group; the wire group is wrapped in an overlapping mode with an inner polyester tape and a copper tape wrapping sub shielding layer to form a shielding wire group; a sub shielding by-pass jumper is arranged between the inner polyester tape and the copper tape wrapping sub shielding layer; the shielding wire group is wrapped in an overlapping mode with an outer polyester tape; a plurality of shielding wire groups provided with outer polyester tapes are twisted to form a cable core; a filling layer formed by a flame-retardant filling rope is arranged in the cable core; the cable core is wrapped in an overlapping mode with a general polyester tape and a copper tape wrapping general shielding layer; a general shielding by-pass jumper is arranged between the general polyester tape and the general shielding layer; the general shielding layer is wrapped in an overlapping mode with a non-alkali fiberglass tape; a thermoplastic flame-retardant inner sheath is extruded; a stainless steel wire armored layer is braided outside the inner sheath; a wrapping layer formed by wrapping the non-alkali fiberglass tape in an overlapping mode is arranged outside the armored layer; and a thermoplastic flame-retardant outer sheath is extruded on the outermost layer of the cable. The rail transportation-used halogen-free low-smoke flame-retardant direct-current transfer intertrip signal cable has the characteristics of being anti-interference, corrosion-resisting, environmental friendly, rat-proof, termite-proof and the like.

Description

Halogen-free low-smoke antiflaming DC two-sided anti-interference signal cable for track traffic
Technical field:
The utility model relates to halogen-free low-smoke antiflaming DC two-sided anti-interference signal cable for a kind of track traffic.
Background technology:
Track traffic is applicable to the interlock tripper of the DC traction system neighboring station of track traffic with halogen-free low-smoke antiflaming DC united-hop control cables, two microcomputers and connection jump device be used in conjunction mutually single to or multipair shielded type cable.
Europe track traffic development has more than 100 year history, and the track traffic of China just has the history of more than ten years, the nineties in last century, 3 subway lines that Guangzhou, Shanghai, Beijing are built up, comprehensive average cost is 700,000,000 yuan every kilometer, higher than the subway engineering of many countries and regions.In view of this, country proposes the subway construction policy of " doing what one is capable of, economical and practical, safe and reliable ", and explicitly calls for home-made equipment rate to be not less than 70%.
At metro project, use in cable; subway power supply is transformed to easy to maintenance and the higher two-side feeding of reliability by single side feeding; and the control of corresponding system protects also requirement more and more higher and diversified; China's underground railway track traffic is started late; the exploitation of relevant auxiliary facility is not also caught up with; the cable that DC traction feed control and protection system adopts is all from external import, has increased the manufacturing cost of subway.
In the development of antiflaming DC united-hop control cables, be abroad that development with track traffic gets up, external some company this is had good research and with the supporting phase series products of track traffic, large Libiee's Rayleigh (PIRELLI) company complies with one's wishes, the better performances of antiflaming DC united-hop control cables, dependable performance.
Current many DC traction feed control and protection systems adopt general domestic control cables; electrical safety performance does not reach the requirement of subway DC traction control and protection system; be easy to produce potential safety hazard; at present China also has the cable manufacturers can production track traffic antiflaming DC united-hop control cables; but technical matters is also still immature, await handing over the mutual docking between energy system and coordinating with track.
Summary of the invention:
For overcoming the defect of prior art, the purpose of this utility model is to provide halogen-free low-smoke antiflaming DC two-sided anti-interference signal cable for a kind of track traffic, there is the characteristics such as excellent Halogen, low cigarette, fire-retardant, anti-interference, corrosion-resistant, tension, can be widely used in the transmission of track traffic signal and control system, excellent product performance, and can produce good society and economic benefit.
The utility model technical solution problem adopts following technical scheme:
Halogen-free low-smoke antiflaming DC two-sided anti-interference signal cable for track traffic, comprise conductor, on described conductor, be extruded with polyethylene layer and form insulated wire cores, two described insulated wire cores pair twists form line group, overlapping interior polyester belt, the wrapped sub-shield formation of the copper strips shielding conductor group of being surrounded with outside described line group, between described interior polyester belt and the wrapped sub-shield of described copper strips, be provided with separated-shielding drainage thread, the outer overlapping outer polyester belt that is surrounded with of described shielding conductor group; By the shielding conductor group that is provided with outer polyester belt described in many is stranded, form cable core, cable core gap is provided with the packed layer that fire-retardant gasket for packing forms; Overlappingly outside described cable core be surrounded with total polyester belt, the wrapped total screen of copper strips, and be provided with total shielding drainage thread between described total polyester belt and described total screen; The overlapping alkali-free glass fiber band that is surrounded with outside described total screen, be extruded with thermoplastic flame-proof inner sheath, inner sheath is woven with stainless steel wire armour outward, and described armour peripheral hardware has the lapping layer of the overlapping wrapped formation of alkali-free glass fibre belt, and cable outermost layer is extruded with thermoplastic flame-proof oversheath.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, in the utility model, adopt the little and stable high density polyethylene (HDPE) of the interior dielectric constant of broadband and dielectric loss angle as insulating material, and improve the insulation thickness of conductor, guarantee the requirement of cable capacitance and inductance.
2, in the utility model, adopt the work in pair twist group loop to form, pair twist pitch is controlled at below 100mm, and adjacent lines group pitch is different, has guaranteed the low inductance of cable, low capacitance characteristic, further improve the antijamming capability of cable, guaranteed the reliability that signal transmits.
3, in the utility model, sub-shield and total screen all adopt the overlapping wrapped shielding construction of copper strips, and the wrapped rate of putting up is all greater than 20%, can effectively stop the signal between line group to disturb and outside signal interference, play good shield effectiveness.
4, the utility model adopts braiding stainless steel wire as armour, has greatly improved tensile property and the mechanical performance of cable, has effectively protected the damage of inner sheath simultaneously, improves the useful life of cable; Meanwhile, the bending radius of cable is little, is conducive to mounting and installation.
5, in the utility model, extruding the termite-proof polyolefin inner/outer sheath of thermoplastic halogen-free and low-smoke high flame retardant protection against rodents is a kind of novel environment-friendly materials, there is excellent low cigarette, Halogen, fire-retardant, unleaded, floride-free, alkali-free, anticorrosion, protection against rodents, the characteristic such as termite-proof, meet instructions for use completely.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 conductor, 2 insulating barriers, 3 interior polyester belts, 4 sub-shields, 5 separated-shielding drainage threads, 6 outer polyester belts, 7 packed layers, 8 total polyester belts, 9 total screens, 10 total shielding drainage threads, 11 alkali-free glass fiber bands, 12 inner sheaths, 13 armours, 14 lapping layers, 15 oversheaths.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment:
Embodiment: in conjunction with Fig. 1, halogen-free low-smoke antiflaming DC two-sided anti-interference signal cable for the track traffic of the present embodiment, on conductor 1, be extruded with polyethylene layer 2 and form insulated wire cores, two insulated wire cores pair twists form line group, outer overlapping interior polyester belt 3, the wrapped sub-shield 4 formation shielding conductor groups of copper strips of being surrounded with of online group, between interior polyester belt and the wrapped sub-shield of described copper strips, be provided with separated-shielding drainage thread 5, the outer overlapping outer polyester belt 6 that is surrounded with of shielding conductor group; By many shielding conductor groups that are provided with outer polyester belt are stranded, form cable core, cable core gap is provided with the packed layer 7 that fire-retardant gasket for packing forms; Overlapping total polyester belt 8, the wrapped total screen 9 of copper strips of being surrounded with outside cable core, and be provided with total shielding drainage thread 10 between total polyester belt and total screen; The overlapping alkali-free glass fiber band 11 that is surrounded with outside total screen, be extruded with thermoplastic flame-proof inner sheath 12, inner sheath is woven with stainless steel wire armour 13 outward, and armour peripheral hardware has the lapping layer 14 of the overlapping wrapped formation of alkali-free glass fibre belt, and cable outermost layer is extruded with thermoplastic flame-proof oversheath 15.
In concrete enforcement, corresponding structure setting and material are selected to be respectively:
Conductor 1 is to adopt oxygen-free copper conductor, and conductor layer surface should be bright and clean, without burr;
Insulating barrier 2 is by high density polyethylene (HDPE), to be extruded in the insulation forming on conductor to extrude layer, and while extruding, on the basis of standard, insulating barrier is thickeied 0.25mm;
It is overlapping wrapped that in insulated wire group is outer, polyester belt 3 lapping layers adopt high insulation polyester belt;
Sub-shield 4 adopts the overlapping lapping structure of copper strips;
Separated-shielding drainage thread 5 adopts 16/0.20mm copper wire;
Outer polyester belt 6 lapping layers outside sub-shield adopt high insulation polyester belt overlapping wrapped;
Packed layer 7 adopts halogen-free low-smoke high-flame gasket for packing packed layer, fills closely knit, rounding;
Outer total polyester belt 8 lapping layers of cable core adopt high insulation polyester belt overlapping wrapped;
Total screen 9 adopts the overlapping lapping structure of copper strips;
Total shielding drainage thread 10 adopts 16/0.20mm copper wire;
Outer alkali-free glass fiber band 11 lapping layers of total screen adopt alkali-free glass fiber band overlapping wrapped;
Inner sheath 12 adopts and extrudes thermoplastic halogen-free and low-smoke high flame retardant polyolefin;
Armour 13 adopts braiding stainless steel wire structure;
The outer lapping layer 14 of armouring adopts alkali-free glass fiber band overlapping wrapped in armour outside;
Oversheath 15 adopts and extrudes thermoplastic halogen-free and low-smoke high flame retardant polyolefin.

Claims (1)

1. halogen-free low-smoke antiflaming DC two-sided anti-interference signal cable for track traffic, comprise conductor (1), on described conductor (1), be extruded with polyethylene layer (2) and form insulated wire cores, it is characterized in that, two described insulated wire cores pair twists form line group, overlapping interior polyester belt (3), the wrapped sub-shield of copper strips (4) the formation shielding conductor group of being surrounded with outside described line group, between described interior polyester belt and the wrapped sub-shield of described copper strips, be provided with separated-shielding drainage thread (5), the outer overlapping outer polyester belt (6) that is surrounded with of described shielding conductor group; By the shielding conductor group that is provided with outer polyester belt described in many is stranded, form cable core, cable core gap is provided with the packed layer (7) that fire-retardant gasket for packing forms; Overlapping total polyester belt (8), the wrapped total screen of copper strips (9) of being surrounded with outside described cable core, and be provided with total shielding drainage thread (10) between described total polyester belt and described total screen; The overlapping alkali-free glass fiber band (11) that is surrounded with outside described total screen, be extruded with thermoplastic flame-proof inner sheath (12), inner sheath is woven with stainless steel wire armour (13) outward, described armour peripheral hardware has the lapping layer (14) of the overlapping wrapped formation of alkali-free glass fibre belt, and cable outermost layer is extruded with thermoplastic flame-proof oversheath (15).
CN201420215078.0U 2014-04-29 2014-04-29 Rail transportation-used halogen-free low-smoke flame-retardant direct-current transfer intertrip signal cable Expired - Fee Related CN203799745U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420215078.0U CN203799745U (en) 2014-04-29 2014-04-29 Rail transportation-used halogen-free low-smoke flame-retardant direct-current transfer intertrip signal cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420215078.0U CN203799745U (en) 2014-04-29 2014-04-29 Rail transportation-used halogen-free low-smoke flame-retardant direct-current transfer intertrip signal cable

Publications (1)

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CN203799745U true CN203799745U (en) 2014-08-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106251973A (en) * 2016-08-30 2016-12-21 武汉宏联电线电缆有限公司 A kind of antiflaming DC united-hop fireproof control cable for track traffic
CN106856105A (en) * 2015-12-09 2017-06-16 无锡市华美电缆有限公司 A kind of fire resistant flexible computer cable of resistance to drawing
CN109659087A (en) * 2019-01-16 2019-04-19 京仪股份有限公司 A kind of corrosion-resistant signal cable and its manufacture craft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106856105A (en) * 2015-12-09 2017-06-16 无锡市华美电缆有限公司 A kind of fire resistant flexible computer cable of resistance to drawing
CN106251973A (en) * 2016-08-30 2016-12-21 武汉宏联电线电缆有限公司 A kind of antiflaming DC united-hop fireproof control cable for track traffic
CN106251973B (en) * 2016-08-30 2017-12-08 武汉宏联电线电缆有限公司 A kind of antiflaming DC united-hop fireproof control cable for track traffic
CN109659087A (en) * 2019-01-16 2019-04-19 京仪股份有限公司 A kind of corrosion-resistant signal cable and its manufacture craft

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140827

Termination date: 20180429