CN203300291U - Rail-transit double-shielding flexible cable - Google Patents
Rail-transit double-shielding flexible cable Download PDFInfo
- Publication number
- CN203300291U CN203300291U CN2013202690784U CN201320269078U CN203300291U CN 203300291 U CN203300291 U CN 203300291U CN 2013202690784 U CN2013202690784 U CN 2013202690784U CN 201320269078 U CN201320269078 U CN 201320269078U CN 203300291 U CN203300291 U CN 203300291U
- Authority
- CN
- China
- Prior art keywords
- layer
- wire
- flexible cable
- copper wire
- track traffic
- 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
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 229920004934 Dacron® Polymers 0.000 claims description 3
- 229920004933 Terylene® Polymers 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 abstract description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 3
- 229910001335 Galvanized steel Inorganic materials 0.000 abstract 2
- 239000008397 galvanized steel Substances 0.000 abstract 2
- 238000005253 cladding Methods 0.000 abstract 1
- -1 copper wire compound Chemical class 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
本实用新型公开了一种轨道交通双屏蔽软电缆，包括三组线芯，其特征在于：所述三组线芯外侧依次设置填充层、阻水带绕包层、铝塑复合带纵包层、无卤聚烯烃内护层、镀锡钢带铠装层、第一阻燃带包带层和外护层，在第一阻燃带包带层和外护层之间增设有镀锡铜丝加镀锌钢丝复合绞线绕加强层；所述每组线芯分别包括铜丝束绞导体，在所述铜丝束绞导体外侧依次设置绝缘层和第二阻燃带包带层。本实用新型采用由镀锌钢丝和镀锡铜丝复合绞线，并以缠绕螺旋形的结构束绕在皱纹铝护套和外护套之间的屏蔽结构，起到了抑制电磁波对外发射的作用，又可作为短路电流的通道，起到中性线芯的保护作用，其不仅阻燃性好，而且大大减少了电磁干扰。
The utility model discloses a double-shielded flexible cable for rail transit, which comprises three sets of wire cores, and is characterized in that: a filling layer, a wrapping layer of a water-blocking tape, and a longitudinal cladding layer of an aluminum-plastic composite tape are sequentially arranged outside the three sets of wire cores. , Halogen-free polyolefin inner sheath, tin-plated steel tape armor, the first flame-retardant tape wrapping layer and outer sheath, and tinned copper is added between the first flame-retardant tape wrapping layer and the outer sheath A composite stranded wire plus galvanized steel wire is wound around a reinforcement layer; each set of wire cores includes a copper wire bundle conductor, and an insulating layer and a second flame-retardant tape wrapping layer are sequentially arranged outside the copper wire bundle conductor. The utility model adopts galvanized steel wire and tin-plated copper wire compound twisted wire, and a shielding structure wrapped between the corrugated aluminum sheath and the outer sheath in a spiral structure, which plays a role in inhibiting the external emission of electromagnetic waves. It can also be used as a channel for short-circuit current to protect the neutral wire core. It not only has good flame retardancy, but also greatly reduces electromagnetic interference.
Description
Technical field
The utility model belongs to the cable technology field, is specifically related to a kind of track traffic double shield flexible cable.
Background technology
Along with the high speed development of urban rail transit in China cause, the demand of cable for rail transit is also in continuous increase.According to data, in the coming years, China will have more than 20 city plan to build subway and light rail, to track traffic in 2015, always run more than mileage will reach 2400km, and newly-increased rail intersection road, 2011-2015 years cities length compound growth rate is 21%.The raising of track traffic technical equipment, to for its supporting electric wire performance, structure, having proposed new problem, the cable that particularly adapts to the modern city track traffic is particularly important.For meeting the requirement of track traffic cable special requirement, Chinese patent CN201220602027.4 discloses a kind of cable for rail transit and has comprised three groups of cores, in three groups of core outsides, sets gradually waterstop lapping layer, aluminum plastic composite belt longitudinal covering, halogen-free polyolefin sheath, copper strips armour, the first fire-retardant belting layer and environmental protective polymer outer jacket; Between three groups of cores and waterstop lapping layer, packed layer is set; Every group of core comprises respectively copper wire bundle strand conductor, in the copper wire bundle strand conductor outside, sets gradually insulating barrier and the second fire-retardant belting layer.The advantage of this technical scheme is simple and reasonable, long service life, good flame resistance.But, also there is an obviously deficiency, that is: the performance of anti-electromagnetic interference and anti-mechanical stretching is not good, can produce electromagnetic interference in being applied to track traffic.
The utility model content
The purpose of this utility model is to provide a kind of track traffic double shield flexible cable of new construction, it is good flame resistance not only, and for issuable electromagnetic interference in railway traffic engineering, carried out the double shield design, can meet the specific (special) requirements of railway traffic engineering cable.
For realizing this purpose, the technical solution of the utility model is: a kind of track traffic double shield flexible cable, comprise three groups of cores, described three groups of cores outside sets gradually packed layer, waterstop lapping layer, aluminum plastic composite belt longitudinal covering, halogen-free polyolefin sheath, zinc-plated steel band armour, the first inhibiting tape belting layer and outer jacket, has additional tinned copper wire and add the zinc-coated wire composite twisted wire around reinforced layer between the first inhibiting tape belting layer and outer jacket; Described every group of core comprises respectively copper wire bundle strand conductor, in the described copper wire bundle strand conductor outside, sets gradually insulating barrier and the second inhibiting tape belting layer.
, as preferably, be provided with one between described halogen-free polyolefin sheath and zinc-plated steel band armour and weave by some dacron threads the terylene woven reinforced layer that forms.
As preferably, described thickness of insulating layer is 26mm.
As preferably, described insulating barrier also is coated with semiconductive shielding layer outward.
With respect to prior art; the utility model adopts by zinc-coated wire and tinned copper wire composite twisted wire; and with the structure bundle of winding screw shape around the shielding construction between corrugated aluminum sheath and oversheath; played the externally effect of emission of electromagnetic wave that suppresses; can be used as again the passage of short circuit current, play the protective effect of neutral core.
Description of drawings
Fig. 1 is the utility model cross-sectional view.
Wherein: 1. core; 2. waterstop lapping layer; 3. aluminum plastic composite belt longitudinal covering; 4. sheath; 5. armour; 6. the first inhibiting tape belting layer; 7. reinforced layer; 8. packed layer; 9. conductor; 10. insulating barrier; 11. the second inhibiting tape belting layer; 12. outer jacket.
Embodiment
In conjunction with the embodiments the utility model is further illustrated with reference to the accompanying drawings.
As shown in Figure 1, a kind of track traffic double shield flexible cable, comprise three groups of cores 1, described three groups of core 1 outsides set gradually packed layer 8, waterstop lapping layer 2, aluminum plastic composite belt longitudinal covering 3, halogen-free polyolefin sheath 4, zinc-plated steel band armour 5, the first inhibiting tape belting layer 6 and outer jacket 12, have additional tinned copper wire and add the zinc-coated wire composite twisted wire around reinforced layer 7 between the first inhibiting tape belting layer 6 and outer jacket 12; Described every group of core 1 comprises respectively copper wire bundle strand conductor 9, in described copper wire bundle strand conductor 9 outsides, sets gradually insulating barrier 10 and the second inhibiting tape belting layer 12.For strengthening shield effectiveness, also can set up one and weave by some dacron threads the terylene woven reinforced layer that forms between halogen-free polyolefin sheath and zinc-plated steel band armour, described thickness of insulating layer is controlled to be 26mm, is coated with semiconductive shielding layer outside insulating barrier again.
The improvement that the utility model is done mainly for track traffic double shield soft cable structure, the foregoing is only the utility model preferred embodiment, non-so namely limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as with the utility model specification and graphic content, doing, all should be contained in the scope of the claims of the present utility model.
Claims (4)
1. track traffic double shield flexible cable, comprise three groups of cores, it is characterized in that: described three groups of cores outside sets gradually packed layer, waterstop lapping layer, aluminum plastic composite belt longitudinal covering, halogen-free polyolefin sheath, zinc-plated steel band armour, the first inhibiting tape belting layer and outer jacket, has additional tinned copper wire and add the zinc-coated wire composite twisted wire around reinforced layer between the first inhibiting tape belting layer and outer jacket; Described every group of core comprises respectively copper wire bundle strand conductor, in the described copper wire bundle strand conductor outside, sets gradually insulating barrier and the second inhibiting tape belting layer.
2. track traffic double shield flexible cable according to claim 1, is characterized in that, is provided with one between described halogen-free polyolefin sheath and zinc-plated steel band armour and weaves by some dacron threads the terylene woven reinforced layer that forms.
3. track traffic double shield flexible cable according to claim 1, is characterized in that, described thickness of insulating layer is 26mm.
4. track traffic double shield flexible cable according to claim 1, is characterized in that, described insulating barrier also is coated with semiconductive shielding layer outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202690784U CN203300291U (en) | 2013-05-17 | 2013-05-17 | Rail-transit double-shielding flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202690784U CN203300291U (en) | 2013-05-17 | 2013-05-17 | Rail-transit double-shielding flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300291U true CN203300291U (en) | 2013-11-20 |
Family
ID=49576286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202690784U Expired - Fee Related CN203300291U (en) | 2013-05-17 | 2013-05-17 | Rail-transit double-shielding flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336431A (en) * | 2015-12-07 | 2016-02-17 | 无锡江南电缆有限公司 | Halogen-free low-smoke flame-retardant fire-resistant power-control composite cable for urban rail transit |
| CN108109767A (en) * | 2017-12-18 | 2018-06-01 | 金杯电工衡阳电缆有限公司 | A kind of wire armouring high voltage power cable |
-
2013
- 2013-05-17 CN CN2013202690784U patent/CN203300291U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336431A (en) * | 2015-12-07 | 2016-02-17 | 无锡江南电缆有限公司 | Halogen-free low-smoke flame-retardant fire-resistant power-control composite cable for urban rail transit |
| CN108109767A (en) * | 2017-12-18 | 2018-06-01 | 金杯电工衡阳电缆有限公司 | A kind of wire armouring high voltage power cable |
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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: 20131120 Termination date: 20190517 |