CN203465967U - PVC insulated aluminum-sheath railway signal cable - Google Patents
PVC insulated aluminum-sheath railway signal cable Download PDFInfo
- Publication number
- CN203465967U CN203465967U CN201320445381.5U CN201320445381U CN203465967U CN 203465967 U CN203465967 U CN 203465967U CN 201320445381 U CN201320445381 U CN 201320445381U CN 203465967 U CN203465967 U CN 203465967U
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- layer
- railway signal
- waterproof
- signal cable
- conductor
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- Expired - Fee Related
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Abstract
The utility model discloses a PVC insulated aluminum-sheath railway signal cable, which comprises a cable core twisted by four wire cores; each wire core comprises a conductor, a polyethylene insulation layer and a polyimide waterproof inner wrapping layer, the polyethylene insulation layer is coated outside each conductor, and the polyimide waterproof inner wrapping layer is coated outside each polyethylene insulation layer; a polyimide waterproof outer wrapping layer, a shielding layer, a fiberglass filling insulation layer, a double-steel-band armored layer and an aluminum sheath are sequentially arranged outside the cable core, and foamed polyolefin is filled between the aluminum sheath and the double-steel-band armored layer; and modified superfine calcined clay is filled within the polyimide waterproof inner wrapping layer and outside the cable core. The PVC insulated aluminum-sheath railway signal cable provided by the utility model can overcome the shortcomings of railway signal cables in mechanical strength, shielding performance and cold resistant performance in the prior art, and can reduce the skin effect of the conductors, thereby making full and effective use of the conductors.
Description
Technical field
The utility model relates to technical field of electric wires and cables, is specifically related to a kind of polyvinyl chloride insulation aluminium sheath railway signal cable.
Background technology
The environment for use temperature of railway signal cable conventionally between subzero 40 to 60 degree centigrade, and requires to have good shielding properties, to avoid the strong electromagnetic of railway electrification section to main line.In prior art, railway signal cable primary structure is to comprise four cores stranded cable core forming mutually, every core is wrapped with polyethylene layer, cable core is disposed with lapping layer, metal establishment screen, polyethylene or polyvinyl chloride inner sheath, steel-tape armouring layer and aluminium sheath outward, and is filled with foam polyolefin between described aluminium sheath and described double-tape armor layer.This structure is Shortcomings on mechanical strength, shielding properties and cold tolerance, has in addition certain kelvin effect, can fully not effectively utilize conductor.
Summary of the invention
The purpose of this utility model is to provide a kind of polyvinyl chloride insulation aluminium sheath railway signal cable, can overcome the deficiency that in prior art, railway signal cable exists on mechanical strength, shielding properties and cold tolerance, can reduce the kelvin effect of conductor in addition, thereby fully effectively utilize conductor.
To achieve these goals, the technical scheme the utility model proposes is:
A polyvinyl chloride insulation aluminium sheath railway signal cable, comprises four cores stranded cable core forming mutually; Every described core comprises lapping layer in conductor, polyethylene layer, pi waterproof, and described conductor is wrapped with described polyethylene layer, and described polyethylene layer is also enclosed with lapping layer in described pi waterproof outward; Cable core is disposed with the outer lapping layer of pi waterproof, screen, glass fibre filling insulating barrier, double-tape armor layer and aluminium sheath outward, and is filled with foam polyolefin between described aluminium sheath and described double-tape armor layer; In the outer lapping layer of described pi waterproof and be positioned at described cable core and be outside equipped with modified superfine calcinated argil and fill.
As the further improved polyvinyl chloride insulation aluminium sheath railway signal cable of the utility model, described conductor is circular and is combined by a plurality of fan-shaped sub-conductors.
As the further improved polyvinyl chloride insulation aluminium sheath railway signal cable of the utility model, described screen is aluminium-plastic tape waterproof screen.
Polyvinyl chloride insulation aluminium sheath railway signal cable provided by the utility model, can overcome the deficiency that in prior art, railway signal cable exists on mechanical strength, shielding properties and cold tolerance, can reduce the kelvin effect of conductor in addition, thereby fully effectively utilize conductor.
Accompanying drawing explanation
Fig. 1, polyvinyl chloride insulation aluminium sheath railway signal cable structural representation;
Fig. 2, the conductor structure schematic diagram of polyvinyl chloride insulation aluminium sheath railway signal cable.
1 is lapping layer in pi waterproof, and 2 is polyethylene layer, and 3 is conductor, and 4 is the filling of modified superfine calcinated argil, 5 is oversheath, and 6 is double-tape armor layer, and 7 is the outer lapping layer of pi waterproof, 8 fill insulating barrier for glass fibre, and 9 is screen, and 10 is sub-conductor.
Embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described in further detail, this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection range.
As illustrated in fig. 1 and 2, the polyvinyl chloride insulation aluminium sheath railway signal cable that the present embodiment provides, comprises four cores stranded cable core forming mutually; Every described core comprises lapping layer 1 in conductor 3, polyethylene layer 2, pi waterproof, and described conductor 3 is wrapped with described polyethylene layer 2, the outer interior lapping layer 1 of described pi waterproof that is also enclosed with of described polyethylene layer 2; Cable core is disposed with the outer lapping layer 7 of pi waterproof, screen 9, glass fibre filling insulating barrier 8, double-tape armor layer 6 and aluminium sheath 5 outward, and is filled with foam polyolefin between described aluminium sheath 5 and described double-tape armor layer 6; In the outer lapping layer 7 of described pi waterproof and be positioned at described cable core and be outside equipped with modified superfine calcinated argil and fill 4.Further, described conductor 3 is circular and is combined by a plurality of fan-shaped sub-conductors 3.Particularly, described screen 9 is aluminium-plastic tape waterproof screen.Polyvinyl chloride insulation aluminium sheath railway signal cable provided by the utility model, can overcome the deficiency that in prior art, railway signal cable exists on mechanical strength, shielding properties and cold tolerance, can reduce the kelvin effect of conductor in addition, thereby fully effectively utilize conductor.
Claims (3)
1. a polyvinyl chloride insulation aluminium sheath railway signal cable, is characterized in that: comprise four cores stranded cable core forming mutually; Every described core comprises lapping layer (1) in conductor (3), polyethylene layer (2), pi waterproof, described conductor (3) is wrapped with described polyethylene layer (2), the outer interior lapping layer (1) of described pi waterproof that is also enclosed with of described polyethylene layer (2); Cable core is disposed with the outer lapping layer (7) of pi waterproof, screen (9), glass fibre filling insulating barrier (8), double-tape armor layer (6) and aluminium sheath (5) outward, and is filled with foam polyolefin between described aluminium sheath (5) and described double-tape armor layer (6); In the outer lapping layer (7) of described pi waterproof and be positioned at described cable core and be outside equipped with modified superfine calcinated argil and fill (4).
2. polyvinyl chloride insulation aluminium sheath railway signal cable according to claim 1, is characterized in that: described conductor (3) is circular and is combined by a plurality of fan-shaped sub-conductors (3).
3. polyvinyl chloride insulation aluminium sheath railway signal cable according to claim 1, is characterized in that: described screen (9) is aluminium-plastic tape waterproof screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445381.5U CN203465967U (en) | 2013-07-25 | 2013-07-25 | PVC insulated aluminum-sheath railway signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445381.5U CN203465967U (en) | 2013-07-25 | 2013-07-25 | PVC insulated aluminum-sheath railway signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465967U true CN203465967U (en) | 2014-03-05 |
Family
ID=50178315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320445381.5U Expired - Fee Related CN203465967U (en) | 2013-07-25 | 2013-07-25 | PVC insulated aluminum-sheath railway signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203465967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976913A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Improved-type medium-voltage fireproof power cable |
| CN106057337A (en) * | 2016-07-30 | 2016-10-26 | 江苏远方电缆厂有限公司 | Below-35kV copper core and aluminum core coaxial composite plastic insulated cable |
-
2013
- 2013-07-25 CN CN201320445381.5U patent/CN203465967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976913A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Improved-type medium-voltage fireproof power cable |
| CN106057337A (en) * | 2016-07-30 | 2016-10-26 | 江苏远方电缆厂有限公司 | Below-35kV copper core and aluminum core coaxial composite plastic insulated cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140305 Termination date: 20180725 |