CN102360610B - Ice-melting type overhead earth wire - Google Patents
Ice-melting type overhead earth wire Download PDFInfo
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- CN102360610B CN102360610B CN201110272258.3A CN201110272258A CN102360610B CN 102360610 B CN102360610 B CN 102360610B CN 201110272258 A CN201110272258 A CN 201110272258A CN 102360610 B CN102360610 B CN 102360610B
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Abstract
The invention discloses an ice-melting type overhead earth wire comprising a galvanized steel wire, a conducting element concentrically stranded on the galvanized steel wire, a galvanized steel strip concentrically lapped with a butt gap on the conducting element, and a reinforcing element concentrically stranded on the galvanized steel strip, wherein the conducting element is a copper core insulated wire, insulation of the copper core insulated wire adopts weather resistant cross-linked polyethylene, and the reinforcing element is a plurality of galvanized steel wires. The invention has the advantage that when a sheet of ice and snow is frozen on the ice-melting type earth wire, the insulated copper core is charged, and the outer layer galvanized steel wires generate eddy heat to melt the covered ice and snow, thereby protecting the overhead earth wire to be in safe operation.
Description
Technical field:
The present invention relates to a kind of cable technology field, particularly a kind of aerial condutor, relates in particular to the ice-melting type overhead earth wire with ice-melt function.
Background technology:
Overhead ground wire does not nearly all possess from ice-melt function at present, once there is extreme ice and snow weather, very easily causes the accidents such as overhead transmission line collapses, broken string, causes large-area power-cuts.
Summary of the invention:
Technical problem to be solved by this invention is do not have ice-melt function and a kind of ice-melting type overhead earth wire is provided for existing overhead ground wire.When there is extreme low temperature bad weather, there is the phenomenon of freezing in overhead ground wire surface, at this moment in the copper conductor of this ice-melting type overhead earth wire, fill the electric current with certain load, so outer zinc-coated wire produces eddy-current heating phenomenon, temperature reaches as high as 90 ℃, thereby the melting point that is much higher than ice, realizes the deicing of circuit.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
Ice-melting type overhead earth wire, comprises that zinc-coated wire, a concentric type are stranded in the wrapped galvanized steel strip on described wire element in conducting element, concentric type gap on zinc-coated wire and the reinforcing element on the stranded described galvanized steel strip of concentric type.
In a preferred embodiment of the invention, described conducting element is copper core insulation line, and the insulation of described copper core insulation line adopts weatherability crosslinked polyethylene.
Described reinforcing element is some zinc-coated wires.
Advantage of the present invention is, while condensing one deck ice and snow on ice-melting type ground wire, in insulated copper heart yearn, to charge, and utilizes outer zinc-coated wire eddy-current heating by the ice dissolution covering, thus protection overhead ground wire security of operation.
Accompanying drawing explanation
Fig. 1 is ice-melting type overhead earth wire radial cross-section of the present invention;
Embodiment:
The present invention further illustrates as follows in conjunction with specific embodiments referring to accompanying drawing:
Referring to Fig. 1, the ice-melting type overhead earth wire shown in figure, comprises a zinc-coated wire 1, and this zinc-coated wire 1 employing keeps flat mode and arranges, zinc-coated wire 1 adopts φ 2.5mm regular tenacity zinc-coated wire.
On zinc-coated wire 1, concentric type is stranded 6 conducting elements, and every conducting element is copper core insulation line, and the conductor 2 of this copper core insulation line adopts φ 1.65mm, and purity is not less than 99.95%, resistivity is not more than 0.017241 Ω .mm
2/ m, elongation at break are not less than 25% stranded the forming of anaerobic annealed copper wire.The insulating barrier 3 of this copper core insulation line adopts black weather resistant crosslinked polyethylene insulation material, and insulating barrier 3 nominal thickness are: 0.4mm.The external diameter of copper core insulation line is between φ 2.3～φ 2.4mm.The differentiation of copper core insulation line adopts black insulating surface to print different white numbers, as: 1,2,3,4,5,6.6 copper core insulation lines are to be not more than 14 times of pitch strandings of the stranded external diameter of copper core insulation line, and direction is left-hand.
On 6 conducting elements, concentric type gap is surrounded with galvanized steel strip 4, and galvanized steel strip 4 adopts cable armouring low-carbon (LC) galvanized steel strip, and thickness is 0.2mm.
Have 12 zinc-coated wires to adopt φ 2.5mm regular tenacity zinc-coated wires as 5,12 zinc-coated wires of reinforcing element the outside of galvanized steel strip 4 concentric type is stranded, adopt dextrad stranded, twisting pitch is 10～14 times of this layer of stranded external diameters.
In sum, ice-melting type overhead earth wire of the present invention has solved overhead transmission line under exceedingly odious meteorological condition, while there is icing phenomenon in overhead ground wire, adopt ice-melting type overhead earth wire of the present invention can effectively solve the icing phenomenon of overhead ground wire, thereby guarantee that overhead transmission line is effective, reliable, safe operation.It is a kind of desirable kind that is widely used in overhead ground wire circuit.
Claims (2)
1. ice-melting type overhead earth wire, it is characterized in that, comprise that zinc-coated wire, a concentric type are stranded in the wrapped galvanized steel strip on described conducting element in 6 conducting elements, concentric type gap on a zinc-coated wire and the reinforcing element on the stranded described galvanized steel strip of concentric type, described reinforcing element is 12 zinc-coated wires, 12 zinc-coated wires adopt φ 2.5mm regular tenacity zinc-coated wire, employing dextrad is stranded, and twisting pitch is 10～14 times of this layer of stranded external diameters;
Every conducting element is copper core insulation line, and the conductor of this copper core insulation line adopts φ 1.65mm, and purity is not less than 99.95%, resistivity is not more than 0.017241 Ω mm
2/ m, elongation at break are not less than 25% stranded the forming of anaerobic annealed copper wire; 6 copper core insulation lines are to be not more than 14 times of pitch strandings of the stranded external diameter of copper core insulation line, and direction is left-hand;
Described zinc-coated wire employing keeps flat mode and arranges, a zinc-coated wire adopts φ 2.5mm regular tenacity zinc-coated wire to make;
While condensing one deck ice and snow on ice-melting type overhead earth wire, in copper core insulation line, charge, utilize outer zinc-coated wire eddy-current heating by the ice dissolution covering.
2. ice-melting type overhead earth wire as claimed in claim 1, is characterized in that, the insulation of described copper core insulation line adopts weatherability crosslinked polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110272258.3A CN102360610B (en) | 2011-09-14 | 2011-09-14 | Ice-melting type overhead earth wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110272258.3A CN102360610B (en) | 2011-09-14 | 2011-09-14 | Ice-melting type overhead earth wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360610A CN102360610A (en) | 2012-02-22 |
| CN102360610B true CN102360610B (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110272258.3A Active CN102360610B (en) | 2011-09-14 | 2011-09-14 | Ice-melting type overhead earth wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN102360610B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881359B (en) * | 2012-09-28 | 2015-09-02 | 浙江汉维通信器材有限公司 | Reservoir optoelectrical cable |
| CN102881356A (en) * | 2012-10-17 | 2013-01-16 | 李天昌 | Novel low-temperature infrared heated automatic deicing ground wire |
| CN103151745A (en) * | 2013-02-20 | 2013-06-12 | 浙江浙电经济技术研究院 | Method for deicing by connecting double-side deicing overhead ground wires in series |
| CN105390195A (en) * | 2015-12-08 | 2016-03-09 | 无锡江南电缆有限公司 | Self-bearing compression-resistant type coaxial cable |
| CN105374435A (en) * | 2015-12-08 | 2016-03-02 | 无锡江南电缆有限公司 | Self-bearing compression-resistant type coaxial composite cable |
| CN105355291A (en) * | 2015-12-08 | 2016-02-24 | 无锡江南电缆有限公司 | Self-supporting tensile coaxial composite cable |
| CN105374460A (en) * | 2015-12-08 | 2016-03-02 | 无锡江南电缆有限公司 | Self-bearing tension-resistant type coaxial cable |
| CN105469897A (en) * | 2015-12-31 | 2016-04-06 | 无锡市曙光电缆有限公司 | Reinforced compressive coaxial aerial cable |
| CN105958411B (en) * | 2016-04-20 | 2018-06-12 | 聂思维 | A kind of high-voltage power line line conductor spontaneous heating de-icing method and device |
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| CN201126735Y (en) * | 2007-11-12 | 2008-10-01 | 远东电缆有限公司 | Ice-and-snow removing conductor |
| CN101303917A (en) * | 2008-05-22 | 2008-11-12 | 山东科虹线缆有限公司 | Self-heating freezing-proof overhead conductor |
| CN101714418A (en) * | 2008-10-08 | 2010-05-26 | 特变电工股份有限公司 | Ice-snow melting wire and ice-snow melting method by use of same |
| CN101834016A (en) * | 2010-05-13 | 2010-09-15 | 湖南省电力公司试验研究院 | Deicing ground wire with high-voltage heavy current |
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| JPH07235218A (en) * | 1994-02-23 | 1995-09-05 | Furukawa Electric Co Ltd:The | Low loosening and ice and snow melting overhead power transmission wire |
| JPH08222029A (en) * | 1995-02-14 | 1996-08-30 | Sumitomo Electric Ind Ltd | Wire hardly suffering snow accretion |
| JP2006196375A (en) * | 2005-01-14 | 2006-07-27 | Chugoku Electric Power Co Inc:The | Melting snow overhead wire |
| CN202487258U (en) * | 2011-09-14 | 2012-10-10 | 湖南金杯电缆有限公司 | Ice-melting overhead ground wire |
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2011
- 2011-09-14 CN CN201110272258.3A patent/CN102360610B/en active Active
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| CN201126735Y (en) * | 2007-11-12 | 2008-10-01 | 远东电缆有限公司 | Ice-and-snow removing conductor |
| CN101303917A (en) * | 2008-05-22 | 2008-11-12 | 山东科虹线缆有限公司 | Self-heating freezing-proof overhead conductor |
| CN101714418A (en) * | 2008-10-08 | 2010-05-26 | 特变电工股份有限公司 | Ice-snow melting wire and ice-snow melting method by use of same |
| CN101834016A (en) * | 2010-05-13 | 2010-09-15 | 湖南省电力公司试验研究院 | Deicing ground wire with high-voltage heavy current |
Non-Patent Citations (2)
| Title |
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| JP平7-235218A 1995.09.05 |
| JP平8-222029A 1996.08.30 |
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| CN102360610A (en) | 2012-02-22 |
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