CN202189578U - Thin wall cable for railroad locomotive - Google Patents
Thin wall cable for railroad locomotive Download PDFInfo
- Publication number
- CN202189578U CN202189578U CN2011202558245U CN201120255824U CN202189578U CN 202189578 U CN202189578 U CN 202189578U CN 2011202558245 U CN2011202558245 U CN 2011202558245U CN 201120255824 U CN201120255824 U CN 201120255824U CN 202189578 U CN202189578 U CN 202189578U
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- China
- Prior art keywords
- cable
- conductor
- thin wall
- railway locomotive
- tin
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- Expired - Fee Related
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Abstract
The utility model discloses a thin wall cable for a railroad locomotive. The center of the thin wall cable is provided with multi-strand clustering tin-coated copper conductors, the external layer of the conductors is provided with a radiant crosslinked ethene-tetrafluoroethylene copolymer first insulating layer and a flame retardation nylon second insulating layer in sequence. Four insulation cores are intertwisted to form a cable core. A tin-coated copper wire woven shield, a cladding belt layer and a protective sleeve layer are arranged out of the cable core in sequence. In the utility model, the mechanical strength of the cable is high; the external diameter is small; oil, corrosion and low temperature resistance is strong; the cable is moistureproof and free of halogen; and the requirement of railroad locomotive vehicle apparatus usage can be satisfied.
Description
Technical field
The utility model relates to a kind of cable, and specifically a kind of railway locomotive is used thin-walled cable.
Background technology
The high ferro construction of China is just in develop rapidly, and along with the completion that track traffic is laid, increasing high ferro, motor-car unit are put into effect.And high ferro and EMUs car inner cable are mainly monopolized by offshore company, and offshore company adopts the fire retardant polyolefin and the external high-precision extruder equipment of autonomous preparation, has designed and developed out a railway locomotive and has used cable.This cable adopts double hyer insulation to extrude, and ground floor is a fire retardant polyolefin, and the second layer is a fire-retardant nylon, and after ground floor was insulating exruded, the processing of laser lettering was carried out on the surface, so that behind the multicore stranding, distinguish simultaneously.Because present stage, the precision of domestic extrusion equipment can't reach the overseas equipment precision level, there is deficiency in raw material on stability simultaneously, in ground floor insulation production process, the insulation breakdown phenomenon frequently occurs like this.If relax insulation thickness, then can't satisfy the external diameter requirement of cable.If relax insulation thickness to 0.2mm, can solve the fire retardant polyolefin breakdown problem, but fire retardant polyolefin can't reach smooth surface, mechanical strength height, the good toughness of fire-retardant nylon, the requirement of endurance.Through the existence of the above technological difficulties, offshore company has reached the purpose of monopolization railway locomotive with cable market, thereby obtains huge profit.
Summary of the invention
For overcoming the defective of prior art, the purpose of the utility model is to provide a kind of railway locomotive to use thin-walled cable, and its mechanical strength is high, little, the oil resistant, corrosion-resistant, low temperature resistant, moistureproof, non-halogen of external diameter, can satisfy the requirement that the railway locomotive mobile unit uses.
The utility model technical solution problem adopts following technical scheme:
A kind of railway locomotive is used thin-walled cable; The center of cable insulation core is provided with multiply bunchy tin-coated copper conductor; Be provided with cross-linking radiation ethylene-tetrafluoroethylene copolymer first insulating barrier, fire-retardant nylon second insulating barrier successively at said conductor skin; Four insulated cores are twisted into cable core, outside said cable core, are provided with tinned wird woven shield, belting layer and restrictive coating successively.
The design feature of the utility model also is:
Said conductor constitutes by many tinned wirds are stranded, and ectonexine is stranded in the same way and the ectonexine pitch is identical.
Said restrictive coating is 125 ℃ of low-smoke halogen-free flame-retardant sheath layers of oil-resisting type.
Compared with present technology, the beneficial effect of the utility model is embodied in:
1, external diameter is little: conductor is the stranded bunchy of multiply tinned wird; When satisfying the cable D.C. resistance, adopt inner conductor and outer contact to restraint strand in the same way, and keep ectonexine conductor pitch consistent; Can fill up the synnema gap fully like this; Having reached desirable minimum outer diameter effect, is the control of final whole cable external diameter like this, and guarantee provides the foundation.
2, withstand voltage properties is good: the ground floor insulating material has selected the cross-linking radiation ethylene-tetrafluoroethylene copolymer to extrude insulation; Because the cross-linking radiation ethylene-tetrafluoroethylene copolymer has good electric property, its dielectric strength is near 80kV/mm, is three times of 25kV/mm dielectric strength of fire retardant polyolefin; Like this aspect proof voltage; The utility model cable is better than the cable of making the material of insulation of fire retardant polyolefin, has solved cable and can stand to exchange 3500V, the problem that 5min does not puncture.
3, the technology realizability is strong: because the cross-linking radiation ethylene-tetrafluoroethylene copolymer is mainly as the aviation wire insulation; At present domestic extrusion equipment and the grasp of raw material technology to this kind material has been tending towards ripe; 0.1mm thickness belongs to extruding of normal ranges external diameter, solved domestic in extruding the fire retardant polyolefin process frequent punch-through.
4, security reliability is high: better because the cross-linking radiation ethylene-tetrafluoroethylene copolymer is a nonflammable material than the anti-flammability of fire-retardant polyolefine material, when running into fire; Can not burn, if temperature is too high, this kind material then carbonization can occur; The cable physical and mechanical properties non-constant that becomes after the carbonization, but electric property can guarantee under static state, under static relatively situation; Can guarantee the signal transmission and the electric power normal supply of equipment, security performance improves greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Label among the figure: 1 conductor, 2 first insulating barriers, 3 second insulating barriers, 4 screens, 5 belting layers, 6 restrictive coatings.
Below pass through embodiment, and combine accompanying drawing that the utility model is described further.
Embodiment
Embodiment: referring to Fig. 1; The cable of present embodiment makes through following technical process: the stranded multiply tin-coated copper of accurate stranding machine or bunching machine twisted wire is as conductor 1, extrudes cross-linking radiation ethylene-tetrafluoroethylene copolymer first insulating barrier 2 of 0.1mm thickness at conductor 1 external application high temperature extrusion equipment, behind the irradiation; Laser character-spraying machine seal number is adopted on core surface; Distinguish so that in use carry out heart yearn, extrude fire-retardant nylon second insulating barrier 3 of 0.1mm thickness after the spray word is accomplished, many insulated core is arranged in by numerical order carries out the stranding set on the cabler; At its external application braiding machine braiding tinned copper wire screen 4; Wrapped belting layer 5 is isolated outside screen 4, so that extruding of oversheath extruded 125 ℃ of low-smoke halogen-free flame-retardant sheath layers 6 of oil-resisting type with extrusion equipment at last.
Claims (3)
1. a railway locomotive is used thin-walled cable; The center of cable insulation core is provided with multiply bunchy tin-coated copper conductor (1); It is characterized in that; Be provided with cross-linking radiation ethylene-tetrafluoroethylene copolymer first insulating barrier (2), fire-retardant nylon second insulating barrier (3) successively at said conductor (1) skin, four insulated cores are twisted into cable core, outside said cable core, are provided with tinned wird woven shield (4), belting layer (5) and restrictive coating (6) successively.
2. a kind of railway locomotive according to claim 1 is used thin-walled cable, it is characterized in that, said conductor (1) constitutes by many tinned wirds are stranded, and ectonexine is stranded in the same way and the ectonexine pitch is identical.
3. a kind of railway locomotive according to claim 1 is used thin-walled cable, it is characterized in that, said restrictive coating (6) is 125 ℃ of low-smoke halogen-free flame-retardant sheath layers of oil-resisting type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202558245U CN202189578U (en) | 2011-07-19 | 2011-07-19 | Thin wall cable for railroad locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202558245U CN202189578U (en) | 2011-07-19 | 2011-07-19 | Thin wall cable for railroad locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189578U true CN202189578U (en) | 2012-04-11 |
Family
ID=45921014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202558245U Expired - Fee Related CN202189578U (en) | 2011-07-19 | 2011-07-19 | Thin wall cable for railroad locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189578U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426513A (en) * | 2013-07-26 | 2013-12-04 | 安徽省巢湖海兴电缆集团有限公司 | Halogen-free flame-retardant thin-wall-type jacketing and insulating control cable for special bullet trains |
| CN103559948A (en) * | 2013-07-26 | 2014-02-05 | 安徽省巢湖海兴电缆集团有限公司 | Screened type special motor train unit control cable |
| CN103714903A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Novel insulating power cable |
| CN105741949A (en) * | 2016-04-07 | 2016-07-06 | 国网天津市电力公司 | Application of laser jet printing technology on electrical cable |
| CN106817787A (en) * | 2016-12-15 | 2017-06-09 | 安邦电气股份有限公司 | A kind of tunnel electric-heating belt |
| CN109509578A (en) * | 2019-01-11 | 2019-03-22 | 河北华通线缆集团股份有限公司 | A kind of distributed photovoltaic cable and production method |
-
2011
- 2011-07-19 CN CN2011202558245U patent/CN202189578U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714903A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Novel insulating power cable |
| CN103426513A (en) * | 2013-07-26 | 2013-12-04 | 安徽省巢湖海兴电缆集团有限公司 | Halogen-free flame-retardant thin-wall-type jacketing and insulating control cable for special bullet trains |
| CN103559948A (en) * | 2013-07-26 | 2014-02-05 | 安徽省巢湖海兴电缆集团有限公司 | Screened type special motor train unit control cable |
| CN105741949A (en) * | 2016-04-07 | 2016-07-06 | 国网天津市电力公司 | Application of laser jet printing technology on electrical cable |
| CN106817787A (en) * | 2016-12-15 | 2017-06-09 | 安邦电气股份有限公司 | A kind of tunnel electric-heating belt |
| CN109509578A (en) * | 2019-01-11 | 2019-03-22 | 河北华通线缆集团股份有限公司 | A kind of distributed photovoltaic cable and production method |
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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 |
Granted publication date: 20120411 Termination date: 20150719 |
|
| EXPY | Termination of patent right or utility model |