CN202976870U - Corrosion resisting type grounding through ground wire for railways - Google Patents
Corrosion resisting type grounding through ground wire for railways Download PDFInfo
- Publication number
- CN202976870U CN202976870U CN 201220483988 CN201220483988U CN202976870U CN 202976870 U CN202976870 U CN 202976870U CN 201220483988 CN201220483988 CN 201220483988 CN 201220483988 U CN201220483988 U CN 201220483988U CN 202976870 U CN202976870 U CN 202976870U
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- conductor
- layer
- ground wire
- copper
- center
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Abstract
The utility model discloses a corrosion resisting type grounding through ground wire for railways. The ground wire comprises a first conductor located in the center and a conductor layer located on the outer surface of the first conductor. The first conductor is composed of a steel conductor located in the center and a first copper layer coated on the outer surface of the steel conductor. The conductor layer is composed of six second conductors twisted on the outer surface of the first conductor. Each second conductor is composed of an aluminum conductor located in the center and a second copper layer coated on the outer surface of the aluminum conductor. The outer surface of the signal copper conductor of the through ground wire is a tin coating layer with a thickness ranging from 0.02mm to 0.2mm. A stainless steel sheath layer is coated on the outer surface of the external conductor layer. A metal filling layer serving as fillers is located in gaps among the stainless steel sheath layer, the conductor layer and the first copper conductor. The corrosion resisting type grounding through ground wire has relatively strong corrosion resistance, and stable reliable conducting performances. Gaps among the stainless steel sheath layer and twisted copper conductors are eliminated. The through ground wire is prevented from suffering conductor oxidation due to water entering end faces. The corrosion resisting type grounding through ground wire has the advantages of excellent mechanical physical performances, good electrical performances and low manufacture cost.
Description
Technical field
The utility model relates to track traffic grounding system field, is specifically related to a kind of corrosion resistant type ground connection Through ground wire for railway.
Background technology
The ground connection Through ground wire is a kind of earth cable that is applied to railway signal system, is the protective earth of system mask, lightning protection, electric equipment etc.The integrated ground Through ground wire can make each working point electromotive force of large-scale Railway Electric system substantially be consistent, make the system equipment grounding safety reliable, eliminate the current potential unsymmetrical current that causes due to the potential difference between distinct device, realized the effective reliable protection to personnel and equipment.
The existing Through ground wire that is applied to the integrated ground of rail track mainly contains: lead sheath Through ground wire (or lead sheath sheath integrated ground cable); Aluminium (aluminium alloy) sheath run-through ground wire (or alloy sleeve integrated ground cable); Conductive plastic jacket Through ground wire (or conductive plastic jacket integrated ground cable), various types of Through ground wires, its transmission conductor is the fine copper stranded conductor, but the sheath of its stranded conductor is had nothing in common with each other, in use all there is following shortcoming and defect in the Through ground wire of different sheaths:
(1) the lead sheath Through ground wire is prohibited the pollution of environment country because of it, and progressively eliminates; Aluminium (aluminum alloy sheath) Through ground wire is relatively poor or its decay resistance existence uncertainty because of its decay resistance, can not satisfy application requirements; The conductive plastic jacket Through ground wire because of its sheath cracking, the burning of overcurrent sheath or aging, overcurrent after conductor temp .-elevating cause degradation defective under the plastic sheath electric conductivity, there is a series of hidden danger in system safety;
(2) conductor of existing Through ground wire is pure cu conductor; to adopt electrician's circular copper wire to make the stranded conductor of Through ground wire through drawing, annealing, after stranded; after extruding protective layer, the stranded conductor skin makes Through ground wire; the conductor of this Through ground wire is made by fine copper; copper content is more than 99.9%, and manufacturing cost is expensive.
Summary of the invention
The utility model purpose is to provide a kind of corrosion resistant type ground connection Through ground wire for railway, this corrosion resistant type ground connection Through ground wire has stronger decay resistance, reliable and stable electric conductivity, eliminate the gap between stainless steel sheath and twisted copper conductors, prevent the conductor oxidation that Through ground wire causes because of the end face water inlet, and have good, the good electrical property of mechanical and physical performance, low cost of manufacture.
For achieving the above object, the technical solution adopted in the utility model is: a kind of corrosion resistant type ground connection Through ground wire for railway, comprise: be positioned at first conductor and the conductor layer that is positioned at its outer surface at center, described the first conductor is comprised of the steel wire that is positioned at its center and the first bronze medal layer that is coated on steel wire outer surface; Institute's conductor layer is comprised of 6 stranded the second conductors in the first conductor outer surface, and described the second conductor is comprised of the aluminum conductor that is positioned at its center and the second bronze medal layer that is coated on the aluminum conductor outer surface; One stainless steel sheath layer is coated on described the second conductor outer surface, and a metal filled layer as filler is positioned at described stainless steel sheath layer, conductor layer and the first copper conductor gap.
Further improve technical scheme in technique scheme as follows:
1. in such scheme, in described conductor layer, the direction of lay of the second conductor is left-hand.
2. in such scheme, in described conductor layer, the twisting pitch of the second conductor is 10～20 times of its stranded diameter.
3. in such scheme, the diameter of described the first conductor, the second conductor is 1.0～3.0mm.
4. the single copper conductor outer surface of Through ground wire is tin coating, tin coating thickness 0.02～0.2mm.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
The utility model is used for the corrosion resistant type ground connection Through ground wire of railway, it is according to kelvin effect phenomenon and the principle of electric current, utilize copper covered steel and copper cover aluminum composite construction, both reduced the consumption of rare metal, manufacturing cost and the project cost of product have been reduced, have again good, the good electrical property of mechanical and physical performance, low cost of manufacture, have considerable economic benefit and social benefit; Secondly, it has stronger decay resistance, reliable and stable electric conductivity, eliminates the gap between stainless steel sheath and stranded conductor, prevents the conductor oxidation that Through ground wire causes because of the end face water inlet.
Description of drawings
Fig. 1 is the corrosion resistant type ground connection Through ground wire structural representation that the utility model is used for railway.
In above figure: 1, the first conductor; 11, steel wire; 12, the first bronze medal layer; 2, conductor layer; 3, the second conductor; 31, aluminum conductor; 32, the second bronze medal layer; 4, stainless steel sheath layer; 5, metal filled layer.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment 1: a kind of corrosion resistant type ground connection Through ground wire for railway, comprise: be positioned at first conductor 1 and the conductor layer 2 that is positioned at its outer surface at center, described the first conductor 1 is comprised of the steel wire 11 that is positioned at its center and the first bronze medal layer 12 that is coated on steel wire 11 outer surfaces; Institute's conductor layer 2 is comprised of 6 stranded the second conductors 3 in the first conductor 1 outer surface, and described the second conductor 3 is comprised of the aluminum conductor 31 that is positioned at its center and the second bronze medal layer 32 that is coated on aluminum conductor 31 outer surfaces; One stainless steel sheath layer 4 is coated on described outer conductor layer 3 outer surfaces, and a metal filled layer 5 as filler is positioned at described stainless steel sheath layer 4, conductor layer 2 and the first copper conductor 1 gap.
In above-mentioned conductor layer 2, the direction of lay of the second conductor 3 is left-hand.
In above-mentioned conductor layer 2, the twisting pitch of the second conductor 3 is 12 times of its stranded diameter.
The diameter of above-mentioned the first conductor 1, the second conductor 3 is 1.2mm.
Embodiment 2: a kind of corrosion resistant type ground connection Through ground wire for railway, comprise: be positioned at first conductor 1 and the conductor layer 2 that is positioned at its outer surface at center, described the first conductor 1 is comprised of the steel wire 11 that is positioned at its center and the first bronze medal layer 12 that is coated on steel wire 11 outer surfaces; Institute's conductor layer 2 is comprised of 6 stranded the second conductors 3 in the first conductor 1 outer surface, and described the second conductor 3 is comprised of the aluminum conductor 31 that is positioned at its center and the second bronze medal layer 32 that is coated on aluminum conductor 31 outer surfaces; One stainless steel sheath layer 4 is coated on described outer conductor layer 3 outer surfaces, and a metal filled layer 5 as filler is positioned at described stainless steel sheath layer 4, conductor layer 2 and the first copper conductor 1 gap.
In above-mentioned conductor layer 2, the direction of lay of the second conductor 3 is left-hand.
In above-mentioned conductor layer 2, the twisting pitch of the second conductor 3 is 18 times of its stranded diameter.
The diameter of above-mentioned the first conductor 1, the second conductor 3 is 2.6mm.
Adopt the corrosion resistant type ground connection Through ground wire that is used for railway of above execution mode, it is according to kelvin effect phenomenon and the principle of electric current, utilize copper covered steel and copper cover aluminum composite construction, both reduced the consumption of rare metal, manufacturing cost and the project cost of product have been reduced, have again good, the good electrical property of mechanical and physical performance, low cost of manufacture, have considerable economic benefit and social benefit; Secondly, it has stronger decay resistance, reliable and stable electric conductivity, eliminates the gap between stainless steel sheath and stranded conductor, prevents the conductor oxidation that Through ground wire causes because of the end face water inlet.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (1)
1. corrosion resistant type ground connection Through ground wire that is used for railway, it is characterized in that: comprising: be positioned at first conductor (1) at center and be positioned at the conductor layer (2) of its outer surface, described the first conductor (1) is comprised of the steel wire (11) that is positioned at its center and the first bronze medal layer (12) of being coated on steel wire (11) outer surface; Institute's conductor layer (2) is comprised of 6 stranded the second conductors (3) in the first conductor (1) outer surface, and described the second conductor (3) is comprised of the aluminum conductor that is positioned at its center (31) and the second bronze medal layer (32) of being coated on aluminum conductor (31) outer surface; One stainless steel sheath layer (4) is coated on described the second conductor (3) outer surface, and a metal filled layer (5) as filler is positioned at described stainless steel sheath layer (4), conductor layer (2) and the first copper conductor (1) gap.
2. corrosion resistant type ground connection Through ground wire according to claim 1, it is characterized in that: in described conductor layer (2), the direction of lay of the second conductor (3) is left-hand.
3. corrosion resistant type ground connection Through ground wire according to claim 1 and 2 is characterized in that: in described conductor layer (2), the twisting pitch of the second conductor (3) is 10～20 times of its stranded diameter.
4. corrosion resistant type ground connection Through ground wire according to claim 1 and 2, it is characterized in that: the diameter of described the first conductor (1), the second conductor (3) is 1.0～3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483988 CN202976870U (en) | 2012-09-20 | 2012-09-20 | Corrosion resisting type grounding through ground wire for railways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483988 CN202976870U (en) | 2012-09-20 | 2012-09-20 | Corrosion resisting type grounding through ground wire for railways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976870U true CN202976870U (en) | 2013-06-05 |
Family
ID=48517914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220483988 Expired - Fee Related CN202976870U (en) | 2012-09-20 | 2012-09-20 | Corrosion resisting type grounding through ground wire for railways |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976870U (en) |
-
2012
- 2012-09-20 CN CN 201220483988 patent/CN202976870U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |