CN105741959A - Single-core high-voltage power cable for 8.7/10kv and lower voltage - Google Patents
Single-core high-voltage power cable for 8.7/10kv and lower voltage Download PDFInfo
- Publication number
- CN105741959A CN105741959A CN201610287712.5A CN201610287712A CN105741959A CN 105741959 A CN105741959 A CN 105741959A CN 201610287712 A CN201610287712 A CN 201610287712A CN 105741959 A CN105741959 A CN 105741959A
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- Prior art keywords
- conductor
- outside
- power cable
- voltage power
- cable
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Abstract
The invention discloses a single-core high-voltage power cable for 8.7/10kv and lower voltage. The center of the cable is provided with an insulated core. A conductor shielding layer is extruded outside the insulated core. A stress control tube is arranged outside the conductor shielding layer. An elastic buffer layer, a non-woven fabric watertight layer and an armoring layer are successively extruded outside the stress control tube. A cooling tube is arranged outside the armoring layer. A corrosion-preventing layer is coated outside the cooling tube. A polyethylene oversheath is extruded outside the corrosion-preventing layer. The insulated core is composed of a conductor and a crosslinked polyethylene insulating layer which is extruded outside the conductor. The single-core high-voltage power cable has advantages of simple manufacture process, reasonable price, long service life, high flexibility, high waterproof performance, high cooling performance, high safety, etc.
Description
Technical field
The present invention relates to power cable field, referring in particular to a kind of rated voltage is 8.7/10kv and following single high voltage power cable.
Background technology
Along with the development of society, city is increasing, and power load is more and more higher, and the safety requirements of power supply is more and more important.Urban electricity supply circuit is more and more closeer, become increasingly complex, and simultaneously because the city appearance of the city needs, it is desirable to attractive in appearance as far as possible, does not adopt overhead transmission line as far as possible, adopts as much as possible and puts cable underground.Based on above reason, present large-scale, megapolis adopt the high-voltage cross-linking polythene cable of 10kV in a large number, get off to complete the conveying of Large Copacity electric energy by ground, to meet the demand of densely populated metropolis power consumption.
High tension cable is the one of power cable, refers to the power cable for transmitting between 10KV-35KV, is applied to the major trunk roads of electric power transmission more.Some high tension cable needs to be embedded under earth's surface, it is possible to prevents the damage of other external force, but thus needs the compressing of high intensity on opposing ground.
The structure composition of 10kV high voltage power cable mainly has conductor, crosslinked polyetylene insulated and external protection.10kV high tension cable, after energising, the electric field intensity in cable insulation is relatively big, any structural design is improper, manufacturing defect or installation and operation incorrect, all can cause cable breakdown, it is impossible to normally use；In cable making process, insulation to ensure not pollute, if there is impurity or bubble in insulation, then is easy to puncture after cable energising；If cable has moisture to enter the insulation of cable in running, then the life-span of cable can be substantially reduced；The conductor of bigger specification cable to be adopted the structure (milliken conductor) that polylith conductor is stitched together, to reduce the kelvin effect of electric energy transmitting procedure, improves the transmission capacity of cable, cable flexibility can be improved simultaneously, it is simple to bending；Structural design also to take into full account the water proofing property of cable, it is ensured that in cable use procedure, moisture can not to the possibility of cable internal penetration；Lay in running and do not limited by height fall, easy to maintenance；Owing to this cable is used for densely populated big city, fire resistance is also necessary, to reduce the generation of fire, there is also the problem that electric stress is concentrated, and prior art can not meet above demand.
Summary of the invention
The technical problem to be solved there is provided the 8.7/10kv and following single high voltage power cable that a kind of manufacturing process is simple, reasonable price, long service life, flexibility are good, water resistance is good, cooling performance is good, security performance is high.
A kind of 8.7/10kv of the present invention and following single high voltage power cable, the center of described cable is provided with an insulated wire cores, conductor shield is extruded outside insulated wire cores, it is externally provided with stress control tube at conductor shield, outside stress control tube, extrudes elastic cord breaker, non-woven fabrics water blocking layer and armor successively；It is externally provided with cooling tube at armor, outside cooling tube, scribbles anticorrosive coat, outside anticorrosive coat, extrude outer protective polyethylene set；Described insulated wire cores is made up of conductor and the crosslinked polyetylene insulated layer that is extruded in outside conductor.
Improving further, described conductor is the milliken conductor of 5 pieces of fan-shaped aluminium conductor formation stitched together.
Improving further, described conductor shield is identical with conductor structure, is formed by 5 pieces single fan-shaped shield is stitched together.
Improving further, described stress control tube is made up of non-linear resistance material, and it is put up no less than 20mm with insulation screen.
Improve further, described armor and anticorrosive coat to be shaped as irregular roundness ring-like.
The beneficial effects of the present invention is:
1, the conductor of the present invention is the milliken conductor of 5 pieces of fan-shaped aluminium conductor formation stitched together, cable is made to have better flexibility, it is more conducive to bending, simultaneously corresponding conductor shield is also adopted by same frame mode, 5 corresponding 5 fan-shaped aluminium conductors of independent shield, it is achieved man-to-man form shields.
2, the present invention is provided with stress control tube, it is that a kind of specific insulation is moderate, the heat-shrinkable tube of the special electrical parameter that dielectric constant is bigger, electric parameter is utilized to force the stress evacuating of insulation shield incision position to become along the more uniform distribution of stress tube, process electric stress concentration problem in cable, and control to alleviate electric field stress and concentrate, light, install easily, performance good.
3, when high tension cable is subject to external impact force, elastic cord breaker can effectively cushion from extraneous pressure, and well protection core is without damage.
4, the wrapped non-woven fabrics electricity waterstop of the present invention, multilamellar semiconductor waterstop soft, and meet water and can expand rapidly, can the entrance of blocks moisture effectively, extend cable service life.
5, the present invention is provided with cooling tube, balance will be reached around the whole circumference of cooling tube by the heat transmission of the wall of cooling tube, and realize efficient heat and be delivered to the cooling liquid being disposed in cooling tube so that the heat minimizing that cable is overall, reduce kelvin effect；And outside cooling tube, scribble Colophonium anti-corrosion material, it is prevented that cooling tube is corroded and bores a hole.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of 8.7/10kv of the present invention and following single high voltage power cable, the center of described cable is provided with an insulated wire cores, conductor shield 3 is extruded outside insulated wire cores, it is externally provided with stress control tube 4 at conductor shield, outside stress control tube, extrudes elastic cord breaker 5, non-woven fabrics water blocking layer 6 and armor 7 successively；It is externally provided with cooling tube 8 at armor, outside cooling tube, scribbles anticorrosive coat 9, outside anticorrosive coat, extrude outer protective polyethylene set 10；Described insulated wire cores is made up of conductor 1 and the crosslinked polyetylene insulated layer 2 that is extruded in outside conductor.
Wherein, the described milliken conductor that conductor 1 is 5 pieces of fan-shaped aluminium conductor formation stitched together, corresponding conductor shield is formed by 5 pieces single fan-shaped shield is stitched together, it is achieved that man-to-man form shields.
Described stress control tube is made up of non-linear resistance material, and it is put up no less than 20mm with insulation screen.
Described armor and anticorrosive coat to be shaped as irregular roundness ring-like so that the outward appearance of cable is more good-looking, and overall compactness, rounding property are better.
The invention provides the thinking of a kind of single high voltage power cable and method; the method and the approach that implement this technical scheme are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.The all available prior art of each component part not clear and definite in the present embodiment is realized.
Claims (5)
1. a 8.7/10kv and following single high voltage power cable, it is characterized in that: the center of described cable is provided with an insulated wire cores, conductor shield (3) is extruded outside insulated wire cores, it is externally provided with stress control tube (4) at conductor shield, outside stress control tube, extrudes elastic cord breaker (5), non-woven fabrics water blocking layer (6) and armor (7) successively；It is externally provided with cooling tube (8) at armor, outside cooling tube, scribbles anticorrosive coat (9), outside anticorrosive coat, extrude outer protective polyethylene set (10)；Described insulated wire cores is made up of conductor (1) and the crosslinked polyetylene insulated layer (2) that is extruded in outside conductor.
2. 8.7/10kv according to claim 1 and following single high voltage power cable, it is characterised in that: the described milliken conductor that conductor (1) is 5 pieces of fan-shaped aluminium conductor formation stitched together.
3. 8.7/10kv according to claim 1 and following single high voltage power cable, it is characterised in that: described conductor shield (3) is identical with conductor structure, is formed by 5 pieces single fan-shaped shield is stitched together.
4. 8.7/10kv according to claim 1 and following single high voltage power cable, it is characterised in that: described stress control tube (4) is made up of non-linear resistance material, and it is put up no less than 20mm with insulation screen.
5. 8.7/10kv according to claim 1 and following single high voltage power cable, it is characterised in that: described armor (7) and anticorrosive coat (9) to be shaped as irregular roundness ring-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287712.5A CN105741959A (en) | 2016-05-04 | 2016-05-04 | Single-core high-voltage power cable for 8.7/10kv and lower voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287712.5A CN105741959A (en) | 2016-05-04 | 2016-05-04 | Single-core high-voltage power cable for 8.7/10kv and lower voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105741959A true CN105741959A (en) | 2016-07-06 |
Family
ID=56288660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610287712.5A Pending CN105741959A (en) | 2016-05-04 | 2016-05-04 | Single-core high-voltage power cable for 8.7/10kv and lower voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105741959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466527A (en) * | 2020-11-18 | 2021-03-09 | 安徽神华特种线缆有限公司 | Copper-core polyvinyl chloride insulating single-core wire and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5281757A (en) * | 1992-08-25 | 1994-01-25 | Pirelli Cable Corporation | Multi-layer power cable with metal sheath free to move relative to adjacent layers |
| CN101673598A (en) * | 2009-10-02 | 2010-03-17 | 久盛电气股份有限公司 | Double-shielded mineral-insulated cable and manufacturing method thereof |
| CN102376402A (en) * | 2010-08-24 | 2012-03-14 | 上海嘉盟电力设备有限公司 | Heat shrinkage bush |
| CN202307294U (en) * | 2011-11-01 | 2012-07-04 | 江苏东峰电缆有限公司 | 110kV crosslinked polyethylene insulated high-voltage power cable |
| CN102760521A (en) * | 2011-04-27 | 2012-10-31 | 上海市电力公司 | Power cable with layered insulating stranded conductor |
| CN103000267A (en) * | 2012-12-20 | 2013-03-27 | 上海上缆藤仓电缆有限公司 | Crosslinked cable |
| CN205645375U (en) * | 2016-05-04 | 2016-10-12 | 江苏红峰电缆集团有限公司 | 8. 7 10kV reaches with core high voltage power cable that places an order |
-
2016
- 2016-05-04 CN CN201610287712.5A patent/CN105741959A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5281757A (en) * | 1992-08-25 | 1994-01-25 | Pirelli Cable Corporation | Multi-layer power cable with metal sheath free to move relative to adjacent layers |
| CN101673598A (en) * | 2009-10-02 | 2010-03-17 | 久盛电气股份有限公司 | Double-shielded mineral-insulated cable and manufacturing method thereof |
| CN102376402A (en) * | 2010-08-24 | 2012-03-14 | 上海嘉盟电力设备有限公司 | Heat shrinkage bush |
| CN102760521A (en) * | 2011-04-27 | 2012-10-31 | 上海市电力公司 | Power cable with layered insulating stranded conductor |
| CN202307294U (en) * | 2011-11-01 | 2012-07-04 | 江苏东峰电缆有限公司 | 110kV crosslinked polyethylene insulated high-voltage power cable |
| CN103000267A (en) * | 2012-12-20 | 2013-03-27 | 上海上缆藤仓电缆有限公司 | Crosslinked cable |
| CN205645375U (en) * | 2016-05-04 | 2016-10-12 | 江苏红峰电缆集团有限公司 | 8. 7 10kV reaches with core high voltage power cable that places an order |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466527A (en) * | 2020-11-18 | 2021-03-09 | 安徽神华特种线缆有限公司 | Copper-core polyvinyl chloride insulating single-core wire and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
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| WD01 | Invention patent application deemed withdrawn after publication |