CN201765877U - 10KV single-core stranded bundle cross-linked polyethylene insulation flame-retardant power cable - Google Patents
10KV single-core stranded bundle cross-linked polyethylene insulation flame-retardant power cable Download PDFInfo
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- CN201765877U CN201765877U CN2010202829986U CN201020282998U CN201765877U CN 201765877 U CN201765877 U CN 201765877U CN 2010202829986 U CN2010202829986 U CN 2010202829986U CN 201020282998 U CN201020282998 U CN 201020282998U CN 201765877 U CN201765877 U CN 201765877U
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Abstract
The utility model relates to a power cable, particularly relates to a single-core stranded power cable, and discloses a 10KV single-core stranded bundle cross-linked polyethylene insulation flame-retardant power cable, which comprises a conductive core, a conductor shielding layer, an insulation layer and an insulation shielding layer. A metal shielding layer is disposed outside the insulation shielding layer, an outer sheath is arranged outside the metal shielding layer, and at least two single-core cables are molded via stranding. The power cable is simple and reasonable in structure and easy in production and manufacturing, increases flexibility, reduces requirements of bend radius, is convenient in installation and maintenance, relatively increases transmission capacity, and can be used for important occasions such as power plants, power transmission circuits of power stations and the like.
Description
Technical field
The utility model relates to a kind of power cable, relates in particular to the stranded power cable of a kind of single core.
Background technology
The electric power material product of power transmission and distribution system applies is numerous, build the power cable of major product as urban electric power, along with city's constant development, the continuous increase of electric power facility, its construction Space Day is becoming tight, make to increase the wiring road in limited corridor, its structure to cable product has proposed the requirement upgraded, have compact conformation, transmission capacity is big, bending radius is little, in light weight, construction maintenance easily cable product be subjected to extensive concern.
Cable product is divided into single-core cable and turnkey three-core cable usually, and external diameter is little, transmission capacity is big though single-core cable has, and needed space is big in electric power system, and it is loaded down with trivial details to construct, and operation is uneven, and required bending radius is not less than 20 times of outside diameters of cable; Though the turnkey three-core cable has compact conformation, quick construction, transmission capacity reduces relatively, overall dimension is bigger than normal, and required bending radius is not less than 15 times of outside diameters of cable.Particularly in the narrow occasion in spaces such as transformer station, switch cubicle, make the turning of cable arrange or insert and be restricted, the construction and installation of cable are brought difficulty.
The utility model content
Technique effect of the present utility model can overcome above-mentioned defective, and the stranded common factor bundle of a kind of 10 kilovolts of single cores connection polyethylene insulation flame-proof power cable is provided, and its compact conformation, transmission capacity is big, bending radius is little.
For achieving the above object, the utility model adopts following technical scheme: its single-core cable comprises conductor wire core, conductor shield, insulating barrier, insulation screen, metal screen layer is set outside insulation screen, and metal screen layer is provided with oversheath outward, and at least two single-core cables are through stranded moulding.
Extrude conductor shield and insulating barrier, insulation screen outside conductor wire core continuously, wrapped then layer of metal screen extrudes the plastics oversheath again, at last with the many stranded bunchys of above-mentioned single-core cable.
Between insulation screen and the metal screen layer water blocking layer is set, wrapped water blocking layer is as vertical water blocking layer.Conductor wire core is made up of copper or aluminum, and conductor forms circular by many copper or the stranded back of pressing of aluminium single line.
The invention provides a kind of power cable product in conjunction with single-core cable and turnkey three-core cable common advantage, owing to adopt single core lay configuration, overall dimension is reduced relatively, convenient narrow occasion is used, effectively satisfy the applicability of product, be mainly reflected in following two aspects:
1) the cable transmission capacity improves relatively.
2) the cable minimum bending radius is 10 times of stranded external diameter.
The stranded bunchy of said single core adopts the structure of phase-splitting insulation, phase-splitting shielding and phase-splitting sheath, and jacket thickness increases, and improves the resistance to wear and the anti-tamper ability of cable, effectively protects the safe and reliable operation of cable.
The utility model is simple and reasonable, be easy to manufacture, improve flexibility, reduce the bending radius requirement, install, easy to maintenance, transmission capacity improves relatively, can be used for important events such as power plant, power station transmission line, relate in particular to the important place that tunnel, cable trough, push pipe in rated voltage 6kV～35kV (the most commonly used with 10kV) power transmission and distribution line system lays environment and power plant, transformer station.Quick construction, be convenient to reduce the power cable product of installing space, can satisfy the demand of electric power system.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
Fig. 1 is a cross-sectional structure schematic diagram of the present utility model.
Among the figure: 1, conductor wire core; 2, conductor shield; 3, insulating barrier; 4, insulation screen; 5, metal screen layer; 6, water blocking layer; 7, oversheath.
Embodiment
Single-core cable of the present utility model comprises conductor wire core 1, conductor shield 2, insulating barrier 3, insulation screen 4, and metal screen layer 5 is set outside insulation screen 4,7, three single-core cables of oversheath is set through stranded moulding outside the metal screen layer 5.
Between insulation screen 4 and the metal screen layer 5 water blocking layer 6 is set.Conductor wire core 1 is circular.
The stranded crosslinked polyetylene insulated flame-proof power cable of single core, it is 10kV that this form cable is suitable for grade of rated voltage, the conductor wire core 1 of cable is made up of copper or aluminium conductor, conductor forms circular by the many stranded backs of pressing of single line, extrude conductor shield 2, insulating barrier 3, insulation screen 4, metal screen layer 5 successively continuously in its outside, metal screen layer 5 adopts copper strips wrapped, and one deck water blocking layer 6 is set in it; Add flame retardant plastics oversheath 7 in metallic shield again, then carry out the stranded bunchy of single core.
Claims (3)
1. one kind 10 kilovolts crosslinked polyetylene insulated flame-proof power cables of the stranded boundling of single core, single-core cable comprises conductor wire core, conductor shield, insulating barrier, insulation screen, it is characterized in that, metal screen layer is set outside insulation screen, metal screen layer is provided with oversheath outward, and at least two single-core cables are through stranded moulding.
2. 10 kilovolts of crosslinked polyetylene insulated flame-proof power cables of the stranded boundling of single core according to claim 1 is characterized in that, between insulation screen and the metal screen layer water blocking layer are set.
3. 10 kilovolts of crosslinked polyetylene insulated flame-proof power cables of the stranded boundling of single core according to claim 1 is characterized in that, conductor wire core is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202829986U CN201765877U (en) | 2010-08-04 | 2010-08-04 | 10KV single-core stranded bundle cross-linked polyethylene insulation flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202829986U CN201765877U (en) | 2010-08-04 | 2010-08-04 | 10KV single-core stranded bundle cross-linked polyethylene insulation flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201765877U true CN201765877U (en) | 2011-03-16 |
Family
ID=43718486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202829986U Expired - Fee Related CN201765877U (en) | 2010-08-04 | 2010-08-04 | 10KV single-core stranded bundle cross-linked polyethylene insulation flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201765877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347108A (en) * | 2010-08-04 | 2012-02-08 | 北京市电力公司 | 10 kilovolt (KV) single-core stranded cluster crosslinking polyethylene insulation flame retardation power cable |
-
2010
- 2010-08-04 CN CN2010202829986U patent/CN201765877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347108A (en) * | 2010-08-04 | 2012-02-08 | 北京市电力公司 | 10 kilovolt (KV) single-core stranded cluster crosslinking polyethylene insulation flame retardation power cable |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20160804 |