CN204516411U - A kind of cable for rail transit line - Google Patents
A kind of cable for rail transit line Download PDFInfo
- Publication number
- CN204516411U CN204516411U CN201520242782.XU CN201520242782U CN204516411U CN 204516411 U CN204516411 U CN 204516411U CN 201520242782 U CN201520242782 U CN 201520242782U CN 204516411 U CN204516411 U CN 204516411U
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- arranged outside
- cable
- wrapped
- rail transit
- transit line
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Abstract
The utility model discloses a kind of cable for rail transit line, described cable comprises heart yearn (1), it is characterized in that, described heart yearn (1) arranged outside has semi-conductive screen band wrapped (2), described semi-conductive screen band wrapped (2) arranged outside has conductor shield (3), described conductor shield (3) arranged outside has insulating barrier (4), the arranged outside of described insulating barrier (4) has insulation screen (5), described insulation screen (5) arranged outside has semiconductive wrapped (6), the arranged outside of described semiconductive wrapped (6) has shielding layer of copper wires (7), the arranged outside of described shielding layer of copper wires (7) has oppositely tightens copper strips (8).The utility model effectively prevents the water tree of insulating barrier from occurring, and ensure that safety and the durability of cable for rail transit.
Description
technical field:
The utility model relates to power cable technical field, more specifically to a kind of cable for rail transit line.
background technology:
Power cable for rail transit is mainly used in city underground distribution engineering.
The structure of existing power cable for rail transit is: conductor, three layers of crosslinked co-extrusion, heat insulation oxygen layer, low-smoke halogen-free polyolefin oversheath, as China Patent No. CN200510037823.2, its patent documentation is mentioned outer jacket and is adopted irradiation low-smoke halogen-free polyolefin with ethene-vinyl acetate resin copolymer mixing polyolefin as flame-retarding characteristic, the protection against rodents not relating to cable for rail transit with prevent other functions such as blocking water.
Cable for rail transit disclosed in China Patent No. CN201020124332.8, its structure have employed waterstop and Water-proof aluminium plastic composite strip as radial waterproof, inside and outside sheath extrudes low-smoke halogen-free polyolefin, and the smoke which making it produce when meeting fire burning is little, toxicity is low.The metal screen layer taked in its document is copper strip shielding, and this structure exists hidden danger concerning the subway grounding system of high request and reliability.
Cable for rail transit disclosed in China Patent No. CN201020228160.9, insulation screen adds around one deck semiconductor waterstop, and dredge around brass wire shielding, reach radial waterproof and system safety grounding requirement, but there is no longitudinal water-blocking in the construction of cable, still there is the intrusion possibility of moisture in cable, is difficult to the durability guaranteeing cable.
utility model content:
The purpose of this utility model is just to provide a kind of cable for rail transit line, and it effectively prevents the water tree of insulating barrier from occurring, and ensure that safety and the durability of cable for rail transit.
For achieving the above object, a kind of cable for rail transit line of the present utility model, described cable comprises heart yearn, described heart yearn arranged outside has semi-conductive screen band wrapped, the wrapped arranged outside of described semi-conductive screen band has conductor shield, described conductor shield arranged outside has insulating barrier, the arranged outside of described insulating barrier has insulation screen, described insulation screen arranged outside has semiconductive wrapped, the wrapped arranged outside of described semiconductive has shielding layer of copper wires, and the arranged outside of described shielding layer of copper wires has oppositely tightens copper strips.
Preferred as technique scheme, the described arranged outside oppositely tightening copper strips has semiconductive wrapped.
Preferred as technique scheme, the wrapped arranged outside of described semiconductive has longitudinal aluminium-plastic tape.
Preferred as technique scheme, the arranged outside of described longitudinal aluminium-plastic tape has separation sleeve.
Preferred as technique scheme, the arranged outside of described separation sleeve has armour.
Preferred as technique scheme, the arranged outside of described armour has inhibiting tape wrapped.
Preferred as technique scheme, the wrapped arranged outside of described inhibiting tape has outer jacket.
Preferred as technique scheme, to be that many single lines are stranded form described heart yearn.
Preferred as technique scheme, described insulating barrier is that crosslinked polyethylene extrudes.
Preferred as technique scheme, described armour is that copper strips is wrapped.
The beneficial effects of the utility model are: a kind of cable for rail transit line of the utility model, and it effectively prevents the water tree of insulating barrier from occurring, and ensure that safety and the durability of cable for rail transit.
accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the structural representation of the utility model embodiment
In figure: 1, drawer cabinet; 2, semi-conductive screen band is wrapped; 3, conductor shield; 4, insulating barrier; 5, insulation screen; 6, semiconductive is wrapped; 7, shielding layer of copper wires; 8, oppositely copper strips is tightened; 9, semiconductive is wrapped; 10, longitudinal aluminium-plastic tape; 11, separation sleeve; 12, armour
embodiment:
The following stated is only the preferred embodiment embodying the utility model principle, does not therefore limit protection range of the present utility model
Be illustrated in figure 1 the embodiment of a kind of cable for rail transit line of the utility model, described cable comprises heart yearn 1, described heart yearn 1 arranged outside has semi-conductive screen band wrapped 2, wrapped 2 arranged outside of described semi-conductive screen band have conductor shield 3, described conductor shield 3 arranged outside has insulating barrier 4, the arranged outside of described insulating barrier 4 has insulation screen 5, described insulation screen 5 arranged outside has semiconductive wrapped 6, the arranged outside of described semiconductive wrapped 6 has shielding layer of copper wires 7, and the arranged outside of described shielding layer of copper wires 7 has oppositely tightens copper strips 8.
The arranged outside oppositely tightening copper strips 8 has semiconductive wrapped 9.
The arranged outside of semiconductive wrapped 9 has longitudinal aluminium-plastic tape 10.
The arranged outside of longitudinal aluminium-plastic tape 10 has separation sleeve 11.
The arranged outside of separation sleeve 11 has armour 12.
The arranged outside of armour 12 has inhibiting tape wrapped.
The wrapped arranged outside of inhibiting tape has outer jacket.
Heart yearn 1 forms for many single lines are stranded.
Insulating barrier 4 extrudes for crosslinked polyethylene.
Armour 12 is that copper strips is wrapped.
Specifically, the crosslinked semiconductive shieldin material of conductor shield 3 extrudes); Insulating barrier 4 is extruded by crosslinked polyethylene; The crosslinked semiconductive shieldin material of insulation shielding extrudes; Shielding layer of copper wires be copper wire dredge around; Separation sleeve is for extruding high flame retardant polyethylene or low smoke, zero halogen polyolefin; Outer jacket is that halogen, low smoke A-class flame rat-and-ant proof polyolefin extrudes.
For meeting the longitudinal water-blocking requirement of cable in the present embodiment, wrapped water blocking layer in the structure that adjacent bed gap is larger, the moisture of such Exterior cable just cannot enter cable inside, effectively prevents the water tree of insulating barrier from occurring, ensure that safety and the durability of cable for rail transit.
In the outer wrapped one deck semiconductor waterstop again of insulation screen, the protection strengthening extruded insulation shielding on the one hand prevents from dredging around the impact of copper wire on insulating barrier, has longitudinal water-blocking function on the other hand.Copper strips armouring, except having anti-rat, also has shielding external magnetic field to the impact of cable.Utilize the radial waterproof of aluminium-plastic tape, separately larger in gap structure sheaf is wrapped Halogen waterstop again, guarantees the longitudinal water-blocking function of whole cable other aspects except conductor.Inside and outside sheath respectively extrudes one deck environmental-friendly halogen-free low-smoke polyolefin, namely meets the high flame retardant of cable, meets again the requirement that toxicity is little, light transmittance is high of the rear evolved gas of burning.
The present embodiment is by wrapped waterstop and the effectively anti-intrusion having bottled up Exterior cable moisture of vertical alclad plastic composite strip, and then the generation preventing the water of insulating barrier to set.Dredge around copper wire as metal screen layer, ensure that the safety ground of system.Inside and outside sheath extrudes environmental-friendly halogen-free low-smoke polyolefine material, greatly reduces the injury to people.
Specific embodiment described herein is only to the explanation for example of the present embodiment spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (10)
1. a cable for rail transit line, described cable comprises heart yearn (1), it is characterized in that, described heart yearn (1) arranged outside has semi-conductive screen band wrapped (2), described semi-conductive screen band wrapped (2) arranged outside has conductor shield (3), described conductor shield (3) arranged outside has insulating barrier (4), the arranged outside of described insulating barrier (4) has insulation screen (5), described insulation screen (5) arranged outside has semiconductive wrapped (6), the arranged outside of described semiconductive wrapped (6) has shielding layer of copper wires (7), the arranged outside of described shielding layer of copper wires (7) has oppositely tightens copper strips (8).
2. a kind of cable for rail transit line according to claim 1, is characterized in that, the described arranged outside oppositely tightening copper strips (8) has semiconductive wrapped (9).
3. a kind of cable for rail transit line according to claim 2, is characterized in that, the arranged outside of described semiconductive wrapped (9) has longitudinal aluminium-plastic tape (10).
4. a kind of cable for rail transit line according to claim 3, is characterized in that, the arranged outside of described longitudinal aluminium-plastic tape (10) has separation sleeve (11).
5. a kind of cable for rail transit line according to claim 4, is characterized in that, the arranged outside of described separation sleeve (11) has armour (12).
6. a kind of cable for rail transit line according to claim 5, is characterized in that, the arranged outside of described armour (12) has inhibiting tape wrapped.
7. a kind of cable for rail transit line according to claim 6, is characterized in that, the wrapped arranged outside of described inhibiting tape has outer jacket.
8. a kind of cable for rail transit line according to claim 7, is characterized in that, described heart yearn (1) forms for many single lines are stranded.
9. a kind of cable for rail transit line according to claim 8, is characterized in that, described insulating barrier (4) extrudes for crosslinked polyethylene.
10. a kind of cable for rail transit line according to claim 9, is characterized in that, described armour (12) for copper strips wrapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520242782.XU CN204516411U (en) | 2015-04-21 | 2015-04-21 | A kind of cable for rail transit line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520242782.XU CN204516411U (en) | 2015-04-21 | 2015-04-21 | A kind of cable for rail transit line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204516411U true CN204516411U (en) | 2015-07-29 |
Family
ID=53714359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520242782.XU Expired - Fee Related CN204516411U (en) | 2015-04-21 | 2015-04-21 | A kind of cable for rail transit line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204516411U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091443A (en) * | 2017-12-20 | 2018-05-29 | 扬州曙光电缆股份有限公司 | Track traffic presses special cable in A class fire-resistant waterproof rat-and-ant proofs |
| CN112259291A (en) * | 2020-10-31 | 2021-01-22 | 上海飞航电线电缆有限公司 | Intelligent medium-voltage photoelectric composite cable for rail transit |
-
2015
- 2015-04-21 CN CN201520242782.XU patent/CN204516411U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091443A (en) * | 2017-12-20 | 2018-05-29 | 扬州曙光电缆股份有限公司 | Track traffic presses special cable in A class fire-resistant waterproof rat-and-ant proofs |
| CN112259291A (en) * | 2020-10-31 | 2021-01-22 | 上海飞航电线电缆有限公司 | Intelligent medium-voltage photoelectric composite cable for rail transit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160421 |