CN202677869U - Through grounding wire used in rail traffic - Google Patents
Through grounding wire used in rail traffic Download PDFInfo
- Publication number
- CN202677869U CN202677869U CN 201220271847 CN201220271847U CN202677869U CN 202677869 U CN202677869 U CN 202677869U CN 201220271847 CN201220271847 CN 201220271847 CN 201220271847 U CN201220271847 U CN 201220271847U CN 202677869 U CN202677869 U CN 202677869U
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- CN
- China
- Prior art keywords
- aluminium alloy
- alloy stranded
- earth lead
- lead layer
- aluminum alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a through grounding wire used in rail traffic, including a signal set comprising four circular copper signal lines positioned at the center for transmitting signals. Each of the circular copper signal line is covered by a polyethylene layer; 6 first aluminum alloy stranded conductors are intertwisted at the surface of the signal set to form a first grounding conductor layer; 12 second aluminum alloy stranded conductors are intertwisted at the surface of the first grounding conductor layer to form a second grounding conductor layer; each of the first aluminum alloy stranded conductors and the second aluminum alloy stranded conductors comprises 7 aluminum alloy conductors; and a conductive protection layer is covered on the surface of the second grounding conductor layer. According to the through grounding wire provided in the utility model, the present current transmission performance is promoted, the strength and hardness are enhanced, the resistance to outside force damage is enhanced, and the material cost is greatly reduced.
Description
Technical field
The utility model relates to the Through ground wire field, is specifically related to a kind of Through ground wire for railway traffic.
Background technology
Through ground wire is a kind of integrated ground cable that is applied to field of track traffic, is the protective earth of system mask, lightning protection, electric equipment etc.The integrated ground cable can make each working point electromotive force of electrical system of large-scale rail line substantially be consistent, 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.
Summary of the invention
The utility model purpose provides a kind of Through ground wire for railway traffic, and this Through ground wire guarantees existing electric current transmission performance simultaneously, has improved the ability of intensity, hardness and anti-extraneous external force damage, significantly reduces material cost.
For achieving the above object, the technical solution adopted in the utility model is: a kind of Through ground wire for railway traffic, comprise: be positioned at the signal group that round copper holding wire that the center is used for signal transmission forms by four, this circle copper holding wire surface all is coated with polyethylene layer, 6 the first aluminium alloy stranded conductors are stranded in described signal group surface formation the first earth lead layer, and 12 the second aluminium alloy stranded conductors are stranded in described the first earth lead layer surface formation the second earth lead layer; Described the first aluminium alloy stranded conductor and the second aluminium alloy stranded conductor are by 7 stranded formation of aluminium alloy conductor;
One conduction sheath is coated on described the second earth lead layer surface.
It is as follows that technique scheme is further improved technical scheme:
1, in the such scheme, described the first aluminium alloy stranded conductor and the second aluminium alloy stranded conductor diameter range are: Φ 0.10～Φ 4.0mm.
2, in the such scheme, the twisting pitch of described the first earth lead layer is 6 times to 8 times of single the first aluminium alloy stranded conductor diameter, and the twisting pitch of described the second earth lead layer is 8 times to 10 times of single the second aluminium alloy stranded conductor diameter.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
The utility model is used for the Through ground wire of railway traffic, has possessed the functional characteristics of electric power, signal transmission and the control of rail line integrated ground; Have fire-retardant and functional characteristics environmental protection.Secondly, compare with original product, improve its intensity and hardness, thereby improve the ability of the anti-extraneous external force damage of its mechanical and physical performance, when making the integrated ground cable have electric conductivity (specific insulation is less than 0.65 Ω .cm), again Effective Raise the cable decay resistance; Again, because product weight reduces by 70% compared with similar products, thereby significantly reduce transportation and construction cost.
Description of drawings
Accompanying drawing 1 is the utility model signal group structural representation;
Accompanying drawing 2 is the utility model aluminium alloy stranded conductor structural representation;
Accompanying drawing 3 is the utility model Through ground wire structural representation.
In the above accompanying drawing: 1, justify the copper holding wire; 2, polyethylene layer; 3, the first aluminium alloy stranded conductor; 4, the first earth lead layer; 5, the second aluminium alloy stranded conductor; 6, the second earth lead layer; 7, aluminium alloy conductor; 8, conduction sheath; 9, signal group.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment 1: a kind of Through ground wire for railway traffic, shown in accompanying drawing 1-3, comprise: be positioned at the signal group 9 that round copper holding wire 1 that the center is used for signal transmission forms by four, this circle copper holding wire 1 surface all is coated with polyethylene layer 2,6 the first aluminium alloy stranded conductors 3 are stranded stranded in described the first earth lead layer 4 surface formation the second earth lead layers 6 in 4,12 the second aluminium alloy stranded conductor 5 of described signal group 9 surface formation the first earth lead layer; Described the first aluminium alloy stranded conductor 3 and the second aluminium alloy stranded conductor 5 are by the 7 stranded formation of 7 aluminium alloy conductors;
One conduction sheath 8 is coated on described the second earth lead layer 6 surface.
Above-mentioned the first aluminium alloy stranded conductor 3 and the second aluminium alloy stranded conductor 5 diameter ranges are: Φ 0.10～Φ 4.0mm.
Embodiment 2: a kind of Through ground wire for railway traffic, shown in accompanying drawing 1-3, comprise: be positioned at the signal group 9 that round copper holding wire 1 that the center is used for signal transmission forms by four, this circle copper holding wire 1 surface all is coated with polyethylene layer 2,6 the first aluminium alloy stranded conductors 3 are stranded stranded in described the first earth lead layer 4 surface formation the second earth lead layers 6 in 4,12 the second aluminium alloy stranded conductor 5 of described signal group 9 surface formation the first earth lead layer; Described the first aluminium alloy stranded conductor 3 and the second aluminium alloy stranded conductor 5 are by the 7 stranded formation of 7 aluminium alloy conductors;
One conduction sheath 8 is coated on described the second earth lead layer 6 surface.
The twisting pitch of above-mentioned the first earth lead layer 4 is 6 times to 8 times of single the first aluminium alloy stranded conductor 3 diameters, and the twisting pitch of described the second earth lead layer 6 is 8 times to 10 times of single the second aluminium alloy stranded conductor 5 diameters.
When adopting above-mentioned Through ground wire for railway traffic, possessed the functional characteristics of electric power, signal transmission and the control of rail line integrated ground; Have fire-retardant and functional characteristics environmental protection.Secondly, compare with original product, improve its intensity and hardness, thereby improve the ability of the anti-extraneous external force damage of its mechanical and physical performance, when making the integrated ground cable have electric conductivity (specific insulation is less than 0.65 Ω .cm), again Effective Raise the cable decay resistance; Again, because product weight reduces by 70% compared with similar products, thereby significantly reduce transportation and construction cost.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, 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, and all should be encompassed within the protection range of the present utility model.
Claims (3)
1. Through ground wire that is used for railway traffic, it is characterized in that: comprising: be positioned at the signal group (9) that round copper holding wire (1) that the center is used for signal transmission forms by four, this circle copper holding wire (1) surface all is coated with polyethylene layer (2), 6 the first aluminium alloy stranded conductors (3) are stranded in described signal group (9) surface formation the first earth lead layer (4), and 12 the second aluminium alloy stranded conductors (5) are stranded in described the first earth lead layer (4) surface formation the second earth lead layer (6); Described the first aluminium alloy stranded conductor (3) and the second aluminium alloy stranded conductor (5) are by the stranded formation of 7 aluminium alloy conductors (7);
One conduction sheath (8) is coated on described the second earth lead layer (6) surface.
2. Through ground wire according to claim 1, it is characterized in that: described the first aluminium alloy stranded conductor (3) and the second aluminium alloy stranded conductor (5) diameter range are: Φ 0.10～Φ 4.0mm.
3. Through ground wire according to claim 1, it is characterized in that: the twisting pitch of described the first earth lead layer (4) is 6 times to 8 times of single the first aluminium alloy stranded conductor (3) diameter, and the twisting pitch of described the second earth lead layer (6) is 8 times to 10 times of single the second aluminium alloy stranded conductor (5) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271847 CN202677869U (en) | 2012-06-11 | 2012-06-11 | Through grounding wire used in rail traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271847 CN202677869U (en) | 2012-06-11 | 2012-06-11 | Through grounding wire used in rail traffic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677869U true CN202677869U (en) | 2013-01-16 |
Family
ID=47498755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271847 Expired - Fee Related CN202677869U (en) | 2012-06-11 | 2012-06-11 | Through grounding wire used in rail traffic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202677869U (en) |
-
2012
- 2012-06-11 CN CN 201220271847 patent/CN202677869U/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: 20130116 Termination date: 20140611 |