CN202282174U - Through earthing cable for railway signal system - Google Patents
Through earthing cable for railway signal system Download PDFInfo
- Publication number
- CN202282174U CN202282174U CN 201120409457 CN201120409457U CN202282174U CN 202282174 U CN202282174 U CN 202282174U CN 201120409457 CN201120409457 CN 201120409457 CN 201120409457 U CN201120409457 U CN 201120409457U CN 202282174 U CN202282174 U CN 202282174U
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- steel
- layer
- aluminum
- coated
- stranded
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Abstract
The utility model discloses a through earthing cable for a railway signal system, which comprises a grounding steel wire set formed by twisting at least one steel wires, and a conductive protection layer with a volume resistivity of less than 0.65omega.cm, wherein a second copper layer with the purity of above 99.95 percent is coated on the surface of the steel wire, at least six aluminum wires are twisted on the surface of the grounding steel wire set to form a grounding aluminum wire layer, a first copper layer with the purity of above 99.95 percent is coated on the surface of each aluminum wire, the thicknesses of the first copper layer and the second copper layers all range from 0.10mm to 0.50mm; and the conductive protection layer is coated on the surface of the grounding aluminum wire layer and comprises the following components of polyethylene, polyphenylene sulfide, polythiophene, polythiazole and an additive. The through earthing cable provided by the utility model has good mechanical and physical properties, better electrical property and low manufacture cost; and according to the through earthing cable, the damage caused by poor contact of a through ground wire due to vibration of a railway track is reduced, and consumption of rare metals is reduced.
Description
Technical field
The utility model relates to track traffic synthetic grounding system field, is specifically related to a kind of perforation earth cable that is used for railway signal system.
Background technology
Through ground wire is a kind of earth cable that is used for railway signal system, is the protective earth of system mask, lightning protection, electric equipment etc.Through ground wire can make each working point electromotive force of large-scale Railway Electric system be consistent basically; Make the system equipment grounding safety reliable; Eliminated because the current potential unsymmetrical current that the potential difference between the distinct device causes has been realized the effective reliable protection to personnel and equipment.
The conductor of existing Through ground wire is a pure cu conductor; Be to adopt electrician's circular copper wire to process the stranded conductor of Through ground wire through drawing, annealing, after stranded;, the stranded conductor skin processes Through ground wire after extruding protective layer; The conductor of this Through ground wire is processed by fine copper, and copper content is more than 99.9%, and manufacturing cost is expensive.
Summary of the invention
The utility model purpose provides a kind of perforation earth cable that is used for railway signal system, and this connects, and earth cable mechanical and physical performance is good, good electrical properties, low cost of manufacture, simultaneously; Both increased the mechanical strength of Through ground wire; Increased contact reliability, reduced to shake the harm of the Through ground wire loose contact generation that causes, reduced the consumption of rare metal again because of track; Reduce the manufacturing cost and the project cost of product, had considerable economic and social benefit.
For achieving the above object; The technical scheme that the utility model adopts is: a kind of perforation earth cable that is used for railway signal system; Comprise: the ground connection steel lead group of at least 1 stranded composition of steel lead, said steel conductive line surfaces is coated with the second bronze medal layer, and at least 6 aluminum conductors are stranded in ground connection steel lead group surface formation ground connection aluminum conductor layer; Said aluminum conductor surface is coated with the first bronze medal layer
The thickness of the said first bronze medal layer and the second bronze medal layer is 0.10mm～0.50mm;
One conduction sheath is coated on said ground connection aluminum conductor laminar surface.
It is following that technique scheme is further improved technical scheme:
1. in the such scheme, the number of said steel lead is 7, and 1 steel lead in these 7 steel leads is positioned at the center, and all the other 6 steel leads are stranded to form the first steel conductor layer in this 1 steel conductive line surfaces; The number of said aluminum conductor is 12, and these 12 aluminum conductors are stranded in said first steel conductor layer surface.
2. in the such scheme; The number of said steel lead is 1; The number of said aluminum conductor is 18; This 1 steel lead is positioned at the center, and in said 18 aluminum conductors 6 are stranded to form the first aluminum conductor layer in said 1 steel conductive line surfaces, and all the other 12 strandedly form the second aluminum conductor layer in the said first aluminum conductor laminar surface in said 18 aluminum conductors.
Because the technique scheme utilization, the utility model compared with prior art has advantage and effect:
The utility model is used for kelvin effect phenomenon and the principle of the perforation earth cable of railway signal system according to electric current; Utilize copper covered steel and copper cover aluminum composite construction; Have advantageous feature such as mechanical and physical performance is good, good electrical properties, low cost of manufacture, adopt the single conductor of bimetallic material, process the transmission conductor of Through ground wire through drawing, after stranded; At stranded conductor outer surface extruding conductive plastics, develop bimetallic conductive plastic jacket Through ground wire again.Bimetallic conductive plastic jacket Through ground wire is when satisfying electric current transmission performance; Both increased the mechanical strength of Through ground wire; Increased contact reliability, reduced to shake the harm of the Through ground wire loose contact generation that causes, reduced the consumption of rare metal simultaneously again because of track; Reduce the manufacturing cost and the project cost of product, had considerable economic and social benefit.
Description of drawings
Accompanying drawing 1 connects earth cable structural representation one for the utility model;
Accompanying drawing 2 connects earth cable structural representation two for the utility model;
Accompanying drawing 3 connects earth cable structural representation three for the utility model.
In the above accompanying drawing: 1, steel lead; 2, ground connection steel lead group; 3, the second bronze medal layer; 4, aluminum conductor; 5, the first bronze medal layer; 6, conduction sheath; 7, the first steel conductor layer; 8, the first aluminum conductor layer; 9, the second aluminum conductor layer.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment 1: a kind of perforation earth cable that is used for railway signal system; Shown in accompanying drawing 1-2; Comprise: it is the second bronze medal layer 3 more than 99.95% that the ground connection steel lead group 2 of at least 1 steel lead 1 stranded composition, said steel lead 1 surface are coated with purity, and at least 6 aluminum conductors 4 are stranded in ground connection steel lead group 2 surface formation ground connection aluminum conductor layers; It is the first bronze medal layer 5 more than 99.95% that said aluminum conductor 4 surfaces are coated with purity
The thickness of the said first bronze medal layer 5 and the second bronze medal layer 3 is 0.10mm～0.50mm;
One volume resistivity is coated on said ground connection aluminum conductor laminar surface less than the conduction sheath 6 of 0.65 Ω .cm.
The number of above-mentioned steel lead 1 is 1; The number of said aluminum conductor 4 is 18; This 1 steel lead 1 is positioned at the center; In said 18 aluminum conductors 46 are stranded to form the first aluminum conductor layer 8 in said 1 steel lead 1 surface, and all the other 12 strandedly form the second aluminum conductor layers 9 in the said first aluminum conductor layer 8 surface in said 18 aluminum conductors 4.
Embodiment 2: a kind of perforation earth cable that is applied to railway signal system; Like accompanying drawing 1, shown in 3; Comprise: it is the second bronze medal layer 3 more than 99.95% that the ground connection steel lead group 2 of at least 1 steel lead 1 stranded composition, said steel lead 1 surface are coated with purity, and at least 6 aluminum conductors 4 are stranded in ground connection steel lead group 2 surface formation ground connection aluminum conductor layers; It is the first bronze medal layer 5 more than 99.95% that said aluminum conductor 4 surfaces are coated with purity
The thickness of the said first bronze medal layer 5 and the second bronze medal layer 3 is 0.10mm～0.50mm;
One volume resistivity is coated on said ground connection aluminum conductor laminar surface less than the conduction sheath 6 of 0.65 Ω .cm.
The number of above-mentioned steel lead 1 is 7, and 1 steel lead 1 in these 7 steel leads 1 is positioned at the center, and all the other 6 steel leads 1 are stranded in this 1 steel lead, 1 surface formation, first steel conductor layer 7; The number of said aluminum conductor 4 is 12, and these 12 aluminum conductors 4 are stranded in the said first steel conductor layer 7 surfaces.
Adopt the perforation earth cable of above execution mode; Utilize copper covered steel and copper cover aluminum composite construction; Have advantageous feature such as mechanical and physical performance is good, good electrical properties, low cost of manufacture, adopt the single conductor of bimetallic material, process the transmission conductor of Through ground wire through drawing, after stranded; Extrude the conductive plastics layer of special formulation again at the stranded conductor outer surface, develop bimetallic conductive plastic jacket Through ground wire.Secondly; Bimetallic conductive plastic jacket Through ground wire had both increased the mechanical strength of Through ground wire when satisfying electric current transmission performance, increased contact reliability; Reduced to shake the harm of the Through ground wire loose contact generation that causes because of track; Reduce simultaneously the consumption of rare metal again, reduced the manufacturing cost and the project cost of product, had considerable economic and social benefit.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.
Claims (3)
1. perforation earth cable that is used for railway signal system; It is characterized in that: comprising: the ground connection steel lead group (2) of the stranded composition of at least 1 steel lead (1); Said steel lead (1) surface is coated with the second bronze medal layer (3); At least 6 aluminum conductors (4) are stranded to form ground connection aluminum conductor layer in ground connection steel lead group (2) surface, and said aluminum conductor (4) surface is coated with the first bronze medal layer (5)
The thickness of the said first bronze medal layer (5) and the second bronze medal layer (3) is 0.10mm～0.50mm;
One conduction sheath (6) is coated on said ground connection aluminum conductor laminar surface.
2. perforation earth cable according to claim 1; It is characterized in that: the number of said steel lead (1) is 7; 1 steel lead (1) in these 7 steel leads (1) is positioned at the center, and all the other 6 steel leads (1) are stranded to form the first steel conductor layer (7) in this 1 steel lead (1) surface; The number of said aluminum conductor (4) is 12, and these 12 aluminum conductors (4) are stranded in said first steel conductor layer (7) surface.
3. perforation earth cable according to claim 1; It is characterized in that: the number of said steel lead (1) is 1; The number of said aluminum conductor (4) is 18; This 1 steel lead (1) is positioned at the center, and in said 18 aluminum conductors (4) 6 are stranded to form the first aluminum conductor layer (8) in said 1 steel lead (1) surface, and all the other 12 strandedly form the second aluminum conductor layer (9) in the said first aluminum conductor layer (8) surface in said 18 aluminum conductors (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120409457 CN202282174U (en) | 2011-10-25 | 2011-10-25 | Through earthing cable for railway signal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120409457 CN202282174U (en) | 2011-10-25 | 2011-10-25 | Through earthing cable for railway signal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282174U true CN202282174U (en) | 2012-06-20 |
Family
ID=46228331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120409457 Expired - Fee Related CN202282174U (en) | 2011-10-25 | 2011-10-25 | Through earthing cable for railway signal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115102132A (en) * | 2022-05-26 | 2022-09-23 | 汤国军 | Novel railway signal cable terminating method and terminating box |
-
2011
- 2011-10-25 CN CN 201120409457 patent/CN202282174U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115102132A (en) * | 2022-05-26 | 2022-09-23 | 汤国军 | Novel railway signal cable terminating method and terminating box |
| CN115102132B (en) * | 2022-05-26 | 2024-02-13 | 中铁电气化局集团第三工程有限公司 | Novel railway signal cable end forming method and end forming box |
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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: 20120620 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |