CN201498233U - Cable for railway traffic vehicle - Google Patents
Cable for railway traffic vehicle Download PDFInfo
- Publication number
- CN201498233U CN201498233U CN2009201739797U CN200920173979U CN201498233U CN 201498233 U CN201498233 U CN 201498233U CN 2009201739797 U CN2009201739797 U CN 2009201739797U CN 200920173979 U CN200920173979 U CN 200920173979U CN 201498233 U CN201498233 U CN 201498233U
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- Prior art keywords
- cable
- conductor
- shielding layer
- layer
- tinned
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Abstract
A cable for a railway traffic vehicle belongs to the technical field of electric wires and cables. The cable comprises cable cores, a shielding layer and a sheath layer, wherein the shielding layer is arranged outside the cable cores, the sheath layer is arranged outside the shielding layer, and each cable core includes a conductor and an insulating layer. The conductor is formed by concentrically stranding a plurality of tinned copper conducting wires; the stranded pitch diameter ratio of the conductor is 11-20 times; each 0.3-0.5mm insulating layer is wrapped outside each conductor; and at least two cable cores are integrally wrapped inside the tinned shielding layer. As the cable adopts a plurality of the IEC60228 second-type tinned copper conducting wires to be concentrically stranded to form the conductor, the cable has soft texture, small outer diameter, light weight and convenient installation. Moreover, the cable cores with small pitch ratio can restrain internal signal interference and attenuation; the tinned high-density shielding layer comprehensively restrains external electromagnetic interference; the cable has the advantages of acid resistance, alkali resistance, oil resistance, cold resistance and the like; and electrical performance and mechanical performance of the cable are stable and reach the level of international similar products.
Description
Technical field
The utility model relates to technical field of electric wires and cables, specifically a kind of rail traffic vehicles cable.
Background technology
Present existing rail traffic vehicles line is extruded the insulating barrier that common polyolefin makes by stranded conductor and is formed, and its thickness is 0.8-1.2mm.The shortcoming that this line exists: 1. physical dimension own is big, and Unit Weight is big, can not be complementary with the electric elements of international standard on the rail vehicle, causes rail traffic vehicles distribution density low; 2. oil resistance is poor slightly, not only can not satisfy the high speed requirement of rail vehicle, and can cause the frequency of rail traffic vehicles thread-changing overhaul to increase; 3. every wire is made up of many wire harness in insulating barrier and the insulating barrier, and core is difficult to reach the requirement of standard roundness.
The utility model content
The purpose of this utility model be big at the prior art volume, weight is heavier, the deficiency that is difficult to install and use at the small space of rail traffic vehicles, guaranteeing to provide the rail traffic vehicles cable that a kind of volume is little, in light weight, be convenient to the rail traffic vehicles use under the constant prerequisite of existing cable structure serviceability.
Realize the foregoing invention purpose by the following technical solutions: a kind of rail traffic vehicles cable, comprise cable core, screen and restrictive coating, the outer setting of cable core has screen, the outer setting of screen has restrictive coating, described cable core comprises conductor and insulating barrier, and described conductor is made up of with core is stranded many tin-coated copper leads, and its stranded lay ratio is 11～20 times, the external packets of every conductor is wrapped with the insulating barrier of 0.3～0.5mm, and at least two cable cores are coated in the zinc-plated screen in the lump.
Adopt technique scheme, compared with prior art, because the utility model adopts second kind of tin-coated copper lead of many IEC60228 with the stranded composition conductor of core, the quality softness, external diameter is little, and is in light weight, is convenient to install.And the cable core pitch can suppress internal signal interference and decay than little.Zinc-plated high density screen stops external electromagnetic interference comprehensively.Have acidproof, alkaline-resisting, oil resistant, advantage such as cold-resistant; Its electrical property, stable mechanical performance reach international like product level.
Description of drawings
Fig. 1 is the structural representation of three-core cable of the present utility model.
Among the figure, tin-coated copper conductor 1, insulating barrier 2, belting layer 3, screen 4, restrictive coating 5.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
See Fig. 1, present embodiment is a kind of rail traffic vehicles three-core cable, by tin-coated copper conductor 1, and insulating barrier 2, belting layer 3, screen 4, restrictive coating 5 is formed.Cable core comprises tin-coated copper conductor 1 and insulating barrier 2, and tin-coated copper conductor 1 is made up of with core is stranded many tin-coated copper leads, and its stranded lay ratio is 11～20 times, and the insulating barrier 2 that the outside of tin-coated copper conductor 1 is enclosed with 0.3～0.5mm respectively constitutes cable core.Three cable cores are coated in the polyester belting layer 3 in the lump, play buffer action.The outside of belting layer 3 is being arranged screen 4 uniformly, and the count of screen remains on more than 80%.The outer setting of screen 4 has restrictive coating 5.
Described conductor is second kind of tin-coated copper lead of IEC60228.
Cable core of the present utility model can be 2～7, and the diameter of lead monofilament is 0.18～0.41mm.Its frame mode and preparation method are with accompanying drawing 1.
Claims (2)
1. rail traffic vehicles cable, comprise cable core, screen and restrictive coating, the outer setting of cable core has screen, the outer setting of screen has restrictive coating, it is characterized in that: described cable core comprises conductor and insulating barrier, and described conductor is made up of with core is stranded many tin-coated copper leads, and its stranded lay ratio is 11～20 times, the external packets of every conductor is wrapped with the insulating barrier of 0.3～0.5mm, and at least two cable cores are coated in the zinc-plated screen in the lump.
2. rail traffic vehicles cable according to claim 1 is characterized in that, described conductor is second kind of tin-coated copper lead of IEC60228.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201739797U CN201498233U (en) | 2009-10-23 | 2009-10-23 | Cable for railway traffic vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201739797U CN201498233U (en) | 2009-10-23 | 2009-10-23 | Cable for railway traffic vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498233U true CN201498233U (en) | 2010-06-02 |
Family
ID=42441435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201739797U Expired - Fee Related CN201498233U (en) | 2009-10-23 | 2009-10-23 | Cable for railway traffic vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498233U (en) |
-
2009
- 2009-10-23 CN CN2009201739797U patent/CN201498233U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20121023 |