CN205104266U - High pressure resistant overhead insulated cable - Google Patents
High pressure resistant overhead insulated cable Download PDFInfo
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- CN205104266U CN205104266U CN201520889437.5U CN201520889437U CN205104266U CN 205104266 U CN205104266 U CN 205104266U CN 201520889437 U CN201520889437 U CN 201520889437U CN 205104266 U CN205104266 U CN 205104266U
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Abstract
The utility model provides a high pressure resistant overhead insulated cable, including stranded insulation core, stranded insulation core use bear the weight of the steel core as the centre of a circle strand each other the back, carry out the cladding by the high density polyethylene oversheath, insulation core wherein includes composite conductor, the composite insulation layer of cladding outside composite conductor and the high density polyethylene inner sheath outside the composite insulation layer, composite conductor is distributed in turn by aluminum stranded conductor and aluminium alloy stranded conductor and the transposition forms, the aluminum stranded conductor is formed by many annealed aluminum wire coil buklings, composite insulation layer includes the polyvinyl chloride layer and the outer crosslinked polyethylene layer of inlayer. The utility model discloses an aspect improves overhead insulated cable's high pressure resistant nature through the high density polyethylene sheath effectively, and on the other hand optimizes its structure, makes it can endure the high voltage more than the 35kV.
Description
Technical field
The utility model belongs to the technical field of aerial insulated cable, especially a kind of high pressure resistant aerial insulated cable.
Background technology
Overhead distributionnetwork is the important component part of urban and rural power grids, and along with socioeconomic development, Analyzing Total Electricity Consumption increases fast, 10kV aerial insulated cable overload, power supply capacity deficiency that consumption is more.In addition, aerial insulated cable works for a long time under solar radiation, and many transmission lines need pass through forest or large stretch of forest zone, and easily make the insulating barrier of cable be damaged, weathering, insulating properties, shielding properties are poor, is difficult to reach normal useful life.
As everyone knows, when long distance power transmission, improve the electric current that transmission voltage can reduce in power transmission cable, and then reduce the caloric value of cable conductor, reduce the energy loss of electric power, and transmission voltage will be improved just must to match with it the high voltage bearing power transmission cable of employing.
The advantage of aerial insulated cable owing to having plain conductor incomparable in electric property, security performance, economic performance etc., progressively plain conductor is replaced in electric power system, add the aerial insulated cable used in middle and high voltage transmission system, market prospects are very wide.Current high voltage overhead insulated cable is all below 35kV mostly.
Utility model content
The purpose of this utility model is to provide a kind of high pressure resistant aerial insulated cable, by the optimization to aerial insulated cable structure, can tolerate the high voltage of more than 35kV.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of high pressure resistant aerial insulated cable, comprise split conductor core, split conductor core with carry steel core for the center of circle mutually stranded after, undertaken coated by high-density polyethylene outer sheath, insulated wire cores wherein comprises composite conductor, be coated on the composite insulation layer outside composite conductor and the high density polyethylene (HDPE) inner sheath outside composite insulation layer, composite conductor is alternately distributed by aluminium stranded conductor and aluminium alloy stranded conductor and strandedly forms, aluminium stranded conductor is formed by many annealed aluminum wire coil bucklings, composite insulation layer comprises the polyvinyl chloride layer of internal layer and outer field cross-linked polyethylene layer.
Preferably, between adjacent insulated wire cores and between high density polyethylene (HDPE) inner sheath and high-density polyethylene outer sheath, mineral wool rope packed layer is provided with.
Compared with prior art, the beneficial effects of the utility model are:
The utility model medium high density polyethylene inner sheath coordinates the collaborative barotolerance that effectively can improve aerial insulated cable with high-density polyethylene outer sheath, stranded composite conductor good conductivity is alternately distributed by aluminium alloy stranded conductor and aluminium stranded conductor, intensity is high, and aluminium stranded conductor adopts soft aluminum to make, resistance is less, conductivity is better, the center of insulated wire cores is carrying steel core, on the one hand, the intensity of cable can be strengthened, on the other hand, can match with the mineral wool rope packed layer of filling and ensure the rounding of composite conductor, be conducive to extruding of insulating barrier, and save space, close structure, reduce eddy current.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1, insulated wire cores, 2, high-density polyethylene outer sheath, 3, aluminium stranded conductor, 4, aluminium alloy stranded conductor, 5, high density polyethylene (HDPE) inner sheath, 6, cross-linked polyethylene layer, 7, polyvinyl chloride layer, 8, carrying steel core.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Embodiment 1: as shown in the figure, a kind of high pressure resistant aerial insulated cable, comprise split conductor core 1 and high-density polyethylene outer sheath 2, split conductor core 1 is that the center of circle is mutually stranded to carry steel core 8, insulated wire cores 1 comprises composite conductor, high density polyethylene (HDPE) inner sheath 5 outside the composite insulation layer of composite conductor outer cladding and composite insulation layer, composite conductor is alternately distributed by aluminium stranded conductor 3 and aluminium alloy stranded conductor 4 and strandedly forms, aluminium stranded conductor 3 is formed by many annealed aluminum wire coil bucklings, composite insulation layer comprises polyvinyl chloride layer 7 and the outer field cross-linked polyethylene layer 6 of internal layer, mineral wool rope packed layer is provided with between adjacent insulated wire cores 1 and between high density polyethylene (HDPE) inner sheath 5 and high-density polyethylene outer sheath 2.
Embodiment 2: a kind of high pressure resistant aerial insulated cable, a kind of high pressure resistant aerial insulated cable, comprise split conductor core 1 and high-density polyethylene outer sheath 2, split conductor core 1 is that the center of circle is mutually stranded to carry steel core 8, insulated wire cores 1 comprises composite conductor, high density polyethylene (HDPE) inner sheath 5 outside the composite insulation layer of composite conductor outer cladding and composite insulation layer, composite conductor is alternately distributed by aluminium stranded conductor 3 and aluminium alloy stranded conductor 4 and strandedly forms, aluminium stranded conductor 3 is formed by many annealed aluminum wire coil bucklings, composite insulation layer comprises polyvinyl chloride layer 7 and the outer field cross-linked polyethylene layer 6 of internal layer, mineral wool rope packed layer is provided with between adjacent insulated wire cores 1 and between high density polyethylene (HDPE) inner sheath 5 and high-density polyethylene outer sheath 2, bracing wire is embedded with respectively in high density polyethylene (HDPE) inner sheath 5 and high-density polyethylene outer sheath 2, by bracing wire high density polyethylene (HDPE) inner sheath 5 and high-density polyethylene outer sheath 2 torn and open a gap, thus be convenient to carry out wiring.
Embodiment 3: a kind of high pressure resistant aerial insulated cable, a kind of high pressure resistant aerial insulated cable, comprise split conductor core 1 and high-density polyethylene outer sheath 2, split conductor core 1 is that the center of circle is mutually stranded to carry steel core 8, insulated wire cores 1 comprises composite conductor, high density polyethylene (HDPE) inner sheath 5 outside the composite insulation layer of composite conductor outer cladding and composite insulation layer, high density polyethylene (HDPE) inner sheath 5 is provided with the phase-splitting vitta arranged along cable length direction, phase-splitting vitta protrudes from high density polyethylene (HDPE) inner sheath 5, and, the quantity of the phase-splitting vitta on each strand insulation core 1 is not identical, so that differentiation phase sequence, composite conductor is alternately distributed by aluminium stranded conductor 3 and aluminium alloy stranded conductor 4 and strandedly forms, aluminium stranded conductor 3 is formed by many annealed aluminum wire coil bucklings, composite insulation layer comprises polyvinyl chloride layer 7 and the outer field cross-linked polyethylene layer 6 of internal layer, mineral wool rope packed layer is provided with between adjacent insulated wire cores 1 and between high density polyethylene (HDPE) inner sheath 5 and high-density polyethylene outer sheath 2, bracing wire is embedded with respectively in high density polyethylene (HDPE) inner sheath 5 and high-density polyethylene outer sheath 2, by bracing wire high density polyethylene (HDPE) inner sheath 5 and high-density polyethylene outer sheath 2 torn and open a gap, thus be convenient to carry out wiring.
The utility model medium high density polyethylene inner sheath coordinates the collaborative barotolerance that effectively can improve aerial insulated cable with high-density polyethylene outer sheath, stranded composite conductor good conductivity is alternately distributed by aluminium alloy stranded conductor and aluminium stranded conductor, intensity is high, and aluminium stranded conductor adopts soft aluminum to make, resistance is less, conductivity is better, the center of insulated wire cores is carrying steel core, on the one hand, the intensity of cable can be strengthened, on the other hand, can match with the mineral wool rope packed layer of filling and ensure the rounding of composite conductor, be conducive to extruding of insulating barrier, and save space, close structure, reduce eddy current.
Above-described is only preferred embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive from content disclosed in the utility model or associate, all should think protection range of the present utility model.
Claims (2)
1. a high pressure resistant aerial insulated cable, comprise split conductor core (1), it is characterized in that: split conductor core (1) with carry steel core (8) for the center of circle mutually stranded after, undertaken coated by high-density polyethylene outer sheath (2), insulated wire cores (1) wherein comprises composite conductor, be coated on the composite insulation layer outside composite conductor and the high density polyethylene (HDPE) inner sheath (5) outside composite insulation layer, composite conductor is alternately distributed by aluminium stranded conductor (3) and aluminium alloy stranded conductor (4) and strandedly forms, aluminium stranded conductor (3) is formed by many annealed aluminum wire coil bucklings, composite insulation layer comprises polyvinyl chloride layer (7) and the outer field cross-linked polyethylene layer (6) of internal layer.
2. the high pressure resistant aerial insulated cable of one according to claim 1, is characterized in that: between adjacent insulated wire cores (1) and between high density polyethylene (HDPE) inner sheath (5) and high-density polyethylene outer sheath (2), be provided with mineral wool rope packed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889437.5U CN205104266U (en) | 2015-11-10 | 2015-11-10 | High pressure resistant overhead insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889437.5U CN205104266U (en) | 2015-11-10 | 2015-11-10 | High pressure resistant overhead insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104266U true CN205104266U (en) | 2016-03-23 |
Family
ID=55520028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520889437.5U Active CN205104266U (en) | 2015-11-10 | 2015-11-10 | High pressure resistant overhead insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104266U (en) |
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2015
- 2015-11-10 CN CN201520889437.5U patent/CN205104266U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |