CN202512937U - Extra-high voltage crosslinked polyethylene insulation optical fiber composite power cable - Google Patents
Extra-high voltage crosslinked polyethylene insulation optical fiber composite power cable Download PDFInfo
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- CN202512937U CN202512937U CN2012201222710U CN201220122271U CN202512937U CN 202512937 U CN202512937 U CN 202512937U CN 2012201222710 U CN2012201222710 U CN 2012201222710U CN 201220122271 U CN201220122271 U CN 201220122271U CN 202512937 U CN202512937 U CN 202512937U
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- fiber composite
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- power cable
- optical fiber
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Abstract
An extra-high voltage crosslinked polyethylene insulation optical fiber composite power cable comprises a conductor, a semiconductive strapping band, a conductor screen layer, an insulation layer, an insulation screen layer, a semiconductive water resistance buffer layer, a metal screen layer, an insulation outer protection layer and an electric conduction outer protection layer, wherein the semiconductive water resistance buffer layer is further provided with an optical fiber composite unite. The extra-high voltage crosslinked polyethylene insulation optical fiber composite power cable has the advantages of being good in mechanical properties and anti-corrosion performance, and being convenient to install and maintain, good in environmental protection performance, and being provided with a nonferrous metal sheath screening with enough transient state short-circuit current capacity, being suitable for electricity transmission of large-scale power grids and smart power grids with extra-high voltage of 750 kilovolts-1100 kilovolts and high capacity, and capable of conducting smart power grid operating data acquisition and automation control information transmission online.
Description
Technical field
The utility model relates to a kind of cable; Particularly a kind of have better mechanical performance and a Corrosion Protection; Convenient for installation and maintenance; Good environmental protection has the non-ferrous metal sheath shielding of enough transient state short-circuit current capacity, is applied to 750kV～crosslinked polyetylene insulated, the fiber composite power cable of 1100kV ultra high voltage of large-scale power station intelligent grid on-line operation data acquisition.
Background technology
Along with the high speed development of State Grid's industry, domestic 750kV and 1000kV ultra high voltage, big capacity, telecommunicate power transmission and transformation intelligent grid construction project have begun to start, and the construction of intelligent grid need be transmitted high-voltage circuit and move online measurement signal.
Based on the characteristics of distinctive insulation property of optical fiber and measurement signal, can process the online electro-optical signal converter of a series of high voltage.Like voltage, electric current, the conversion of electric frequency electro-optical signal, mechanics voltage sensitive sensor and the most frequently used high voltage power transmission cable optic fibre temperature transducer etc.; And utilize that the optical-fibre communications transmission capacity is big, transmission quality good, and do not receive electromagnetic noise interference, do not receive the influence of high voltage, big electric current, high temperature resistant, corrosion resistant advantage; Make the Fibre Optical Sensor mechanics of communication obtain application more and more widely in high-voltage intelligent electrical network field.
But, international, domestic 750kV～big capacity of 1100kV ultra high voltage, telecommunicate power transmission and transformation, online collection of intelligent grid service data and the automation control information transmission photoelectricity composite power cable product of carrying out of ability of also not being applicable at present.
Summary of the invention
The purpose of the utility model provides the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage; This cable machinery intensity is high, and corrosion-resistant, loss is little; Convenient for installation and maintenance; Good environmental protection is specially adapted to large-scale power grid, power station 750kV～1100kV ultra high voltage, big capacity ac transmission, and can onlinely carry out collection of intelligent grid service data and automation control information transmission.
In order to solve the problems of the technologies described above; The technical scheme of the utility model is: a kind of ultra high voltage power cable with cross-linked polyethylene insulation, and cable comprises conductor, semiconductive strapping, conductor shield, insulating barrier, insulation screen, semiconductive water-blocking buffer layer, metal screen layer, insulation outer jacket, conduction outer jacket respectively successively from internal layer to skin; The semiconductive water-blocking buffer layer also is provided with the Optical Fiber Composite unit.
In order to weaken the kelvin effect of conductor when carrying high current load, said conductor preferentially adopts the copper milliken conductor, can adopt also that aluminium milliken conductor, multiple conducting wires are stranded to press that round copper conductor or multiple conducting wires are stranded to press round aluminium conductor.
Described conductor shield, insulation screen adopt ultra-smooth semiconductive polyolefin shielding material to process.
Described insulating barrier preferentially adopts ultrapurification ultra high voltage cross-linked polyethylene insulating material, also can adopt the ultrapurification insulating material of polyethylene to process.
Described semiconductive water-blocking buffer layer adopts semiconductive wrapped the processing of buffer strip branch multilayer that block water.
Described Optical Fiber Composite unit is located at semiconductive and is blocked water in the middle of first lapping layer and second lapping layer of buffer strip.
Described semiconductive water-blocking buffer layer is provided with 1 or 2 Optical Fiber Composite unit.
Described Optical Fiber Composite unit comprises optical fiber, filling optical fiber cream, highstrenghtpiston pine sleeve pipe from the inner to the outer successively respectively.
Described metal screen layer adopts wrinkle copper sleeve or circle copper sleeve, corrugated aluminium sheath pipe or circle aluminum casing to process.
Said conduction outer jacket adopts conduction polyolefin material or semiconductive polyolefin material to process.
The crosslinked polyetylene insulated fiber composite power cable of the ultra high voltage that the utility model provides; Have mechanical performance and Corrosion Protection preferably, loss is little, and is convenient for installation and maintenance; Good environmental protection; Metallic shield is with enough transient state short-circuit current capacity, is applicable to large-scale power grid, power station 750kV～1100kV ultra high voltage, big capacity, intelligent grid operation transmission of electricity, and can onlinely carries out collection of intelligent grid service data and automation control information transmission.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of Optical Fiber Composite unit.
Embodiment
Shown in Fig. 1 or 2; The utility model comprises conductor 1, semiconductive strapping 2, conductor shield 3, insulating barrier 4, insulation screen 5, semiconductive water-blocking buffer layer 6, metal screen layer 7, insulation outer jacket 8, conduction outer jacket 9 respectively successively from internal layer to skin, and semiconductive water-blocking buffer layer 6 also is provided with Optical Fiber Composite unit 10.
In order to satisfy the needs of ultra high voltage, big capacity ac transmission; Weaken the kelvin effect of conductor when carrying high current load; The said conductor 1 normal copper milliken conductor that adopts is a pattern commonly used with five milliken conductors, seven milliken conductors or nine milliken conductors that are added with the center circle lead.Also can adopt the aluminium milliken conductor, or adopt stranded round copper conductor or the aluminium conductor of pressing of multiple conducting wires.
In order to strengthen the steadiness of conductor structure, conductor 1 is outside equipped with wrapped semiconductive strapping 2, and semiconductive strapping 2 is united the conductor screen that constitutes cable with conductor shield 3.
Described conductor shield 3, insulation screen 5 adopt ultra-smooth semiconductive polyolefin shielding material to make.
Described insulating barrier 4 adopts ultrapurification ultra high voltage cross-linked polyethylene insulating material or ultrapurification insulating material of polyethylene to process.
Described semiconductive water-blocking buffer layer 6 adopts semiconductives wrapped the processing of buffer strip branch multilayer that block water.
Described Optical Fiber Composite unit 10 adopts 1 or 2 of highstrenghtpiston pine casing fiber optic unit
,Being positioned over semiconductive blocks water in the middle of first lapping layer and second lapping layer of buffer strip.
Described Optical Fiber Composite unit 10 comprises optical fiber 11 from the inner to the outer successively respectively, fills optical fiber cream 12, highstrenghtpiston pine sleeve pipe 13.
As required, optical fiber 11 can adopt several data communication optical fiber, TEMP optical fiber or mechanics sensor fibre; Highstrenghtpiston pine sleeve pipe 13 adopts the polyester plastics pine sleeve pipe of high-modulus, or adopts high temperature resistant, corrosion-resistant, high insulation, low frictional factor, the Teflon optical fiber loose tube of good mechanical strength is arranged.
Because the utility model has higher requirement to the loss and the capacity of short circuit of metal screen layer; The said metal screen layer 7 normal less soft copper materials of resistivity that adopt are processed; Select the soft copper band of certain width and number millimeters thick for use, the circumference of the copper pipe sheath of processing as required cuts into certain width with copper strip; Be wrapped on the semiconductive water-blocking buffer layer 6 of cable through the metal tube shaping mould then, constitute the copper sleeve that certain interval is arranged with semiconductive water-blocking buffer layer 6; Adopt the metal tube argon arc welding to meet sb. at the airport again, the vertical bag of the copper sleeve piece of first one-step forming is implemented vertically welding automatically.Metal tube can produce certain heat when vertical bag welding, the semiconductive water-blocking buffer layer of cable insulation core outside at this moment plays and stops the welding action of high temperature, and protection cable insulation core is not scalded.
Also possess certain clearance between the copper sleeve of the vertical bag of completion piece welding and the semiconductive water-blocking buffer layer; Re-use rotation and press make-up machine moulding is pressed in copper sleeve rotation, process the wrinkle copper sleeve; Or adopt drawing to shrink impacted process, process round copper sleeve.Its internal circular surfaces of the copper sleeve of moulding should moderately stick on the semiconductive water-blocking buffer layer 6.Insulation shield layer 5 → constituted complete cable outer layer metallic shield continuity path like this through semiconductive water-blocking buffer layer 6 → metal screen layer 7.
The said insulation outer jacket 8 normal polyethylene insulation protective cover materials that adopt are processed, and for preventing the polyethylene insulation outer jacket cracking of cable, often adopt modification medium density polyethylene insulating sleeve.Also can adopt the polyvinyl chloride insulation sheath.The metallic sheath surface extrudes the plastics outer jacket after answering the cable pitch or PUR of spraying melting again.
In order to strengthen the firmness of the conductive layer on the cable insulation outer jacket 8; Make the withstand voltage test convenient and reliable operation of insulation outer jacket 8; On insulation outer jacket 8, extrude one deck conduction outer jacket 9 again; Conduction outer jacket 9 adopts the conduction polyolefin material that merges mutually with insulation outer jacket 8 to process, and also can adopt semiconductive polyolefin material to process.
The interface of insulating between outer jacket and the conduction outer jacket for the metallic shield that makes cable fuses well, and two layers of plastic co-extrusion technology of insulation outer jacket 8 and 9 employings of conduction outer jacket are made.
Claims (10)
1. crosslinked polyetylene insulated fiber composite power cable of ultra high voltage is characterized in that: cable comprises conductor (1), semiconductive strapping (2), conductor shield (3), insulating barrier (4), insulation screen (5), semiconductive water-blocking buffer layer (6), metal screen layer (7), insulation outer jacket (8), conduction outer jacket (9) respectively successively from internal layer to skin; Also be provided with Optical Fiber Composite unit (10) in the semiconductive water-blocking buffer layer (6).
2. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 1 is characterized in that: described conductor (1) adopts that copper milliken conductor, multiple conducting wires are stranded to press that round copper conductor, aluminium milliken conductor or multiple conducting wires are stranded to press round aluminium conductor and process.
3. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 1 is characterized in that: described conductor shield (3), insulation screen (5) adopt ultra-smooth semiconductive polyolefin shielding material to process.
4. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 1 is characterized in that: described insulating barrier (4) adopts ultrapurification ultra high voltage cross-linked polyethylene insulating material or ultrapurification insulating material of polyethylene to process.
5. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 1 is characterized in that: described semiconductive water-blocking buffer layer (6) adopts semiconductive wrapped the processing of buffer strip branch multilayer that block water.
6. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 1 is characterized in that: described Optical Fiber Composite unit (10) is located at semiconductive and is blocked water in the middle of first lapping layer and second lapping layer of buffer strip.
7. according to claim 1 or the crosslinked polyetylene insulated fiber composite power cable of 5 described ultra high voltages, it is characterized in that: described semiconductive water-blocking buffer layer (6) is provided with 1 or 2 Optical Fiber Composite unit (10).
8. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 6; It is characterized in that: described Optical Fiber Composite unit (10) comprises optical fiber (11) from the inner to the outer successively respectively; Fill optical fiber cream (12), highstrenghtpiston pine sleeve pipe (13).
9. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 1 is characterized in that: described metal screen layer (7) adopts wrinkle copper sleeve or circle copper sleeve, corrugated aluminium sheath pipe or circle aluminum casing to process.
10. the crosslinked polyetylene insulated fiber composite power cable of ultra high voltage according to claim 1 is characterized in that: said conduction outer jacket (9) adopts conduction polyolefin material or semiconductive polyolefin material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201222710U CN202512937U (en) | 2012-03-28 | 2012-03-28 | Extra-high voltage crosslinked polyethylene insulation optical fiber composite power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201222710U CN202512937U (en) | 2012-03-28 | 2012-03-28 | Extra-high voltage crosslinked polyethylene insulation optical fiber composite power cable |
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| Publication Number | Publication Date |
|---|---|
| CN202512937U true CN202512937U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201222710U Expired - Fee Related CN202512937U (en) | 2012-03-28 | 2012-03-28 | Extra-high voltage crosslinked polyethylene insulation optical fiber composite power cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123825A (en) * | 2013-03-22 | 2013-05-29 | 国网电力科学研究院 | High voltage and ultrahigh voltage flexible direct current transmission optical fiber composite extrusion insulation submarine cable |
| CN103824638A (en) * | 2014-02-14 | 2014-05-28 | 申环电缆科技有限公司 | Intelligent power grid-used high-voltage photoelectric composite cable with externally-arranged optical fibers |
| CN104575808A (en) * | 2014-12-29 | 2015-04-29 | 上海南大集团有限公司 | Intelligent maintenance-free cable |
| CN107767989A (en) * | 2017-10-18 | 2018-03-06 | 扬州大学 | A kind of polyether-ether-ketone high pressure flexible direct current transmission of electricity optical fiber compound extruded cable |
-
2012
- 2012-03-28 CN CN2012201222710U patent/CN202512937U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123825A (en) * | 2013-03-22 | 2013-05-29 | 国网电力科学研究院 | High voltage and ultrahigh voltage flexible direct current transmission optical fiber composite extrusion insulation submarine cable |
| CN103123825B (en) * | 2013-03-22 | 2016-02-03 | 国网电力科学研究院 | High pressure and ultrahigh voltage flexible direct current transmission optical fiber compound extruded insulation submarine cable |
| CN103824638A (en) * | 2014-02-14 | 2014-05-28 | 申环电缆科技有限公司 | Intelligent power grid-used high-voltage photoelectric composite cable with externally-arranged optical fibers |
| CN104575808A (en) * | 2014-12-29 | 2015-04-29 | 上海南大集团有限公司 | Intelligent maintenance-free cable |
| CN107767989A (en) * | 2017-10-18 | 2018-03-06 | 扬州大学 | A kind of polyether-ether-ketone high pressure flexible direct current transmission of electricity optical fiber compound extruded 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 |
Granted publication date: 20121031 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |