CN102364586B - Comprehensive grounding cable for rail transit - Google Patents
Comprehensive grounding cable for rail transit Download PDFInfo
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- CN102364586B CN102364586B CN2011103270371A CN201110327037A CN102364586B CN 102364586 B CN102364586 B CN 102364586B CN 2011103270371 A CN2011103270371 A CN 2011103270371A CN 201110327037 A CN201110327037 A CN 201110327037A CN 102364586 B CN102364586 B CN 102364586B
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- earth
- grounding conductor
- grounding
- conductor wires
- earth lead
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a comprehensive grounding cable for rail transit. The comprehensive grounding cable comprises eighteen grounding conductor wires and at least four signal groups consisting of copper conductor wires serving as signals wires, wherein polyethylene layers are respectively coated on the surfaces of the copper conductor wires, six of the eighteen grounding conductor wires are stranded on the surface of the signal group to form a first grounding conductor wire layer, the rest 12 of the eighteen grounding conductor wires are stranded on the surface of the first grounding conductor wire layer to form a second grounding conductor wire layer; the resistivity of the grounding conductor wires is not more than 0.03ohm.mm<2>/m, and the grounding conductor wires is mainly composed of the following components: aluminum, magnesium, silicon and iron; and an electroconductive protective layer with the volume resistivity smaller than 0.65ohm.cm is coated on the surface of the second grounding conductor wire layer and is composed of the following components: polyethylene, electroconductive carbon black, a plastic electroconductive agent and an additive. The comprehensive grounding cable disclosed by the invention is increased in strength, rigidity, mechanical and physical properties and resistance to external force damages, and has excellent electrical conductivity.
Description
Technical field
The present invention relates to track traffic synthetic grounding system field, be specifically related to a kind of integrated ground cable for track traffic.
Background technology
The integrated ground cable 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, 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 conductor of existing integrated ground line 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, make after the outer extruding conductive plastic sheath of stranded conductor, the conductor of this integrated ground line is made by fine copper, copper content is more than 99.9%, and manufacturing cost is expensive.Copper conductor and decay resistance relative mistake.
Summary of the invention
The object of the invention is to provide a kind of integrated ground cable for track traffic, and this integrated ground cable improves its intensity and hardness, the ability of mechanical and physical performance and anti-extraneous external force damage, and have good electric conductivity.
For achieving the above object, the technical solution used in the present invention is: a kind of integrated ground cable for track traffic, comprise: 18 earth leads and at least 4 signal groups that form as the copper conductor of holding wire, described copper conductor surface all is coated with polyethylene layer, 6 earth leads in described 18 earth leads are stranded in described signal group surface formation the first earth lead layer, and in described 18 earth leads, all the other 12 earth leads are stranded in described first earth lead layer surface formation the second earth lead layer;
The resistivity of described earth lead is not more than 0.03 Ω mm
2/ m, density is not more than 2.8 g/cm
3, this earth lead is mainly composed of the following components:
Aluminium 93.0%～94.5 %,
Magnesium 4.5%～5.0%,
Silicon 0.6%～1%,
Iron 0.4%～0.6%;
One volume resistivity is coated on described the second earth lead layer surface less than the conduction sheath of 0.65 Ω .cm, and this conduction sheath is composed of the following components:
Polyethylene 70%～80%,
Conductive carbon black 10%～15%,
Plastics conductive agent 2%～5%,
Additive 3%～10%.
It is as follows that technique scheme is further improved technical scheme:
1. in such scheme, described earth lead diameter range is: Φ 0.10-Φ 4.0mm.
2. in such scheme, in described signal group, the copper conductor number is 4.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1, integrated ground cable of the present invention has possessed electric power, the signal transmission of rail line integrated ground and the functional characteristics of controlling.
2, the present invention adopts the aluminium alloy conductor of special formulation, compares with original product, improves its intensity and hardness, thereby improves the ability of the anti-extraneous external force damage of its mechanical and physical performance.
3, the conductive plastics sheath of the aluminium alloy conductor of special formulation of the present invention and specific components combines, and when making the integrated ground cable have electric conductivity (specific insulation is less than 0.65 Ω .cm), has effectively improved again the cable decay resistance.
4, the present invention adopts aluminium alloy conductor, rationally utilizes natural resources, significantly reduces material cost.
5, because product weight reduces by 70% compared with similar products, thereby significantly reduce transportation and construction cost.
Description of drawings
Accompanying drawing 1 is used for the integrated ground cable copper conducting wire structure schematic diagram of track traffic for the present invention;
Accompanying drawing 2 is used for the integrated ground cable signal group structural representation of track traffic for the present invention;
Accompanying drawing 3 is used for the integrated ground construction of cable schematic diagram of track traffic for the present invention.
In above accompanying drawing: 1, earth lead; 2, copper conductor; 3, signal group; 4, polyethylene layer; 5, the first earth lead layer; 6, the second earth lead layer; 7, conduction sheath.
Embodiment
Below in conjunction with accompanying drawing and implement the n example the invention will be further described:
Embodiment 1-3: a kind of integrated ground cable for track traffic, comprise: 18 earth leads 1 and at least 4 signal groups 3 that form as the copper conductor 2 of holding wire, described copper conductor 2 surfaces all are coated with polyethylene layer 4,6 earth leads in described 18 earth leads 1 are stranded in described signal group 3 surface formation the first earth lead layers 5, and in described 18 earth leads 1, all the other 12 earth leads are stranded in described first earth lead layer 5 surface formation the second earth lead layer 6;
The resistivity of described earth lead 1 is not more than 0.03 Ω mm2/m, and density is not more than 2.8 g/cm3, and the earth lead 1 of embodiment 1～3 is composed of the following components:
Table 1
| ? | Aluminium | Magnesium | Silicon | Iron | Other metal |
| Embodiment 1 | 93.0% | 5.0% | 1% | 0.6% | 0.4% |
| |
94% | 4.7% | 0.8% | 0.45% | 0.05% |
| |
94.2 % | 4.5% | 0.6% | 0.4% | 0.3% |
What the percentage sign in table 1 represented is the quality percentage composition, and other metal is copper, chromium, zinc etc.
One volume resistivity is coated on described the second earth lead layer 6 surface less than the conduction sheath 7 of 0.65 Ω .cm, and this conduction sheath 7 is composed of the following components:
Polyethylene 70%～80%,
Conductive carbon black 10%～15%,
Plastics conductive agent 2%～5%,
Additive 3%～10%.
Above-mentioned earth lead 1 diameter range is: Φ 0.10-Φ 4.0mm.
In above-mentioned signal group 3, copper conductor 2 numbers are 4.
When adopting above-mentioned integrated ground cable for track traffic, possessed electric power, the signal transmission of rail line integrated ground and the functional characteristics of controlling; 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; The conductive plastics sheath of the aluminium alloy conductor of special formulation and specific components combines, and when making the integrated ground cable have electric conductivity (specific insulation is less than 0.65 Ω .cm), has effectively improved again the cable decay resistance; Adopt aluminium alloy conductor, rationally utilize natural resources, significantly reduce material cost, 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 invention and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present invention and implement according to this, can not limit protection scope of the present invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (1)
1. integrated ground cable that is used for track traffic, it is characterized in that: comprising: the signal group (3) that 18 earth leads (1) and at least 4 copper conductors as holding wire (2) form, described copper conductor (2) surface all is coated with polyethylene layer (4), 6 earth leads in described 18 earth leads (1) are stranded in described signal group (3) surface formation the first earth lead layer (5), and in described 18 earth leads (1), all the other 12 earth leads are stranded in described first earth lead layer (5) surface formation the second earth lead layer (6);
The resistivity of described earth lead (1) is not more than 0.03 Ω mm
2/ m, density is not more than 2.8 g/cm
3, this earth lead (1) mainly is comprised of following components by weight percent:
Aluminium 93.0%～94.5 %,
Magnesium 4.5%～5.0%,
Silicon 0.6%～1%,
Iron 0.4%～0.6%;
One volume resistivity is coated on described the second earth lead layer (6) surface less than the conduction sheath (7) of 0.65 Ω .cm, and this conduction sheath (7) is composed of the following components:
Polyethylene 70%～80%,
Conductive carbon black 10%～15%,
Plastics conductive agent 2%～5%,
Additive 3%～10%.
2. integrated ground cable according to claim 1, it is characterized in that: described earth lead (1) diameter range is: Φ 0.10-Φ 4.0mm.
3. integrated ground cable according to claim 1 is characterized in that: in described signal group (3), copper conductor (2) number is 4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103270371A CN102364586B (en) | 2011-10-25 | 2011-10-25 | Comprehensive grounding cable for rail transit |
| CN201310119527.1A CN103354126B (en) | 2011-10-25 | 2011-10-25 | The corrosion-resistant integrated ground cable of track traffic |
| CN201310119526.7A CN103354106B (en) | 2011-10-25 | 2011-10-25 | Urban track traffic integrated ground cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103270371A CN102364586B (en) | 2011-10-25 | 2011-10-25 | Comprehensive grounding cable for rail transit |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310119527.1A Division CN103354126B (en) | 2011-10-25 | 2011-10-25 | The corrosion-resistant integrated ground cable of track traffic |
| CN201310119526.7A Division CN103354106B (en) | 2011-10-25 | 2011-10-25 | Urban track traffic integrated ground cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102364586A CN102364586A (en) | 2012-02-29 |
| CN102364586B true CN102364586B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310119527.1A Active CN103354126B (en) | 2011-10-25 | 2011-10-25 | The corrosion-resistant integrated ground cable of track traffic |
| CN2011103270371A Active CN102364586B (en) | 2011-10-25 | 2011-10-25 | Comprehensive grounding cable for rail transit |
| CN201310119526.7A Active CN103354106B (en) | 2011-10-25 | 2011-10-25 | Urban track traffic integrated ground cable |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310119527.1A Active CN103354126B (en) | 2011-10-25 | 2011-10-25 | The corrosion-resistant integrated ground cable of track traffic |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310119526.7A Active CN103354106B (en) | 2011-10-25 | 2011-10-25 | Urban track traffic integrated ground cable |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928083A (en) * | 2013-09-27 | 2014-07-16 | 安徽华峰电缆集团有限公司 | Nominal-voltage cable |
| CN105568095A (en) * | 2016-02-02 | 2016-05-11 | 安徽复兴电缆集团有限公司 | Aluminum alloy cable |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674609Y (en) * | 2003-12-11 | 2005-01-26 | 西安西电光电缆有限责任公司 | Through ground wire |
| CN201259797Y (en) * | 2008-08-20 | 2009-06-17 | 焦作铁路电缆工厂 | Railway synthetic run-through ground wire with conductive macromolecular protection sleeve |
| CN101440186B (en) * | 2008-12-24 | 2010-11-10 | 四川明星电缆股份有限公司 | Medium and low voltage fuel-resistant rubber semi-conductive shielding material for cable and preparation thereof |
| CN101546621A (en) * | 2009-05-06 | 2009-09-30 | 江苏亨通线缆科技有限公司 | Through groundwire of flexible railroad |
| CN101604563B (en) * | 2009-06-04 | 2011-08-31 | 郑州电缆有限公司 | Method for manufacturing heat-resistant aluminum alloy wire for power cable |
-
2011
- 2011-10-25 CN CN201310119527.1A patent/CN103354126B/en active Active
- 2011-10-25 CN CN2011103270371A patent/CN102364586B/en active Active
- 2011-10-25 CN CN201310119526.7A patent/CN103354106B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103354106B (en) | 2015-08-12 |
| CN103354106A (en) | 2013-10-16 |
| CN103354126B (en) | 2015-08-12 |
| CN103354126A (en) | 2013-10-16 |
| CN102364586A (en) | 2012-02-29 |
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