CN106057291A - SZ-shaped single wire water-blocking conductor for +/-500kV flexible DC cable and submarine cable - Google Patents
SZ-shaped single wire water-blocking conductor for +/-500kV flexible DC cable and submarine cable Download PDFInfo
- Publication number
- CN106057291A CN106057291A CN201610640250.0A CN201610640250A CN106057291A CN 106057291 A CN106057291 A CN 106057291A CN 201610640250 A CN201610640250 A CN 201610640250A CN 106057291 A CN106057291 A CN 106057291A
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- Prior art keywords
- single line
- water
- conductor
- stranded
- 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
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
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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
- H01B7/14—Submarine 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
- H01B7/28—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The invention discloses an SZ-shaped single wire water-blocking conductor for a +/-500kV flexible DC cable and a submarine cable. The conductor comprises a central conductor core, water-blocking filling materials, SZ-shaped single wire twisted layers and a semi-conductive water-blocking strapping tape, wherein the SZ-shaped single wire twisted layers are arranged outside the central conductor core, the water-blocking filling materials are arranged in gaps of single copper wires as well as positions between the central conductor core and the SZ-shaped single wire twisted layer and between the SZ-shaped single wire twisted layers, and the semi-conductive water-blocking strapping tape is arranged in the outermost layer of the conductor. According to the invention, the requirement of long-time continuous production of the conductor is met, the production efficiency is improved, twisting of the SZ-shaped single copper wires can improve the filling coefficient of the conductor obviously, the water-blocking performance of the conductor is higher, using requirements for underwater power transmission are satisfied, and the line cost can be reduced to a large degree compared with that of the same power transmission capability.
Description
Technical field
The present invention relates to a kind of cable conductor, be applicable to, particularly to one, the direct current cables that electric pressure is ± 500kV
And the heavy in section SZ shape single line of sea cable blocks water circular copper conductors, the invention belongs to technical field of cable.
Background technology
Along with country proposes to build global energy the Internet, promote and meet global power demand with cleaning and green mode
Proposal, how Efficient Development and the problem utilizing the clean energy resource such as wind energy, water power to become power industry scientific research personnel's growing interest.
Global energy the Internet substantially with extra-high voltage grid as bulk transmission grid, the strong intelligent grid of global interconnection, be cleaning energy
Source large-scale development in the world, the basic platform configuring, utilizing, essence is exactly extra-high voltage grid+intelligent grid+cleaning energy
The combination in source.Circuit cost is low, line loss is little, system stability because of it for Technology of HVDC based Voltage Source Converter, active power and idle merit
Rate controls flexibly, reliable, facilitates the advantage such as built by separate periods and compatilizing mechanism to receive significant attention, in isolated island power transmission, city
The fields such as the capacity-increasing transformation of power distribution network, AC system interconnect, large-scale wind power field is grid-connected, and be widely used, especially exist
There is obvious advantage in remote submarine transmission field.
Flexible direct current cable and sea cable are the critical equipment of Technology of HVDC based Voltage Source Converter, in order to meet the great Rong of flexible direct current
Amount transmission of electricity feature, flexible direct current cable and sea cable need to use more heavy in section conductor to improve self current capacity, meanwhile,
The line loss that conductor DC resistance brings can also be reduced, along with electric pressure and the raising of transmission capacity, flexible direct current electricity
Cable and sea cable propose more heavy in section requirement to conductor.
Flexible DC power transmission avoids kelvin effect and the kindred effect of ac transmission process, and flexible DC power transmission
Longer apart from transmission of electricity, the length that produces continuously of product is proposed the highest requirement, what heavy in section high-voltage alternating cable used divides
Cutting form of conductors to be unsuitable for long length continuous way and produce, the most in most cases flexible direct current cable and sea cable conductor do not use point
Cut form of conductors.For cross section at 2000mm2Following flexible direct current cable and sea cable conductor, press circular stranded conductor permissible
Meeting its structure to design and production requirement continuously, and effectively realize the longitudinal water-blocking of conductor, the most existing multinomial engineering should
With.But when cross-sectional area of conductor is more than 2000mm2, the most monofilament radical abilities that be can be done by by current conductor strand equipment limit
System, realizes increasing section further and can only rely on increase filament diameter, has easily caused monofilament gap compared with big and to press coefficient inclined
Little drawback, brings bigger difficulty for follow-up insulating exruded production, and bigger conductor diameter causes cable holistic cost
Rising, it is therefore desirable to the heavy in section water-blocking conductor of exploitation new structure adapts to higher transmission capacity and higher voltage grade is flexible
Direct current transportation needs.
Summary of the invention
Goal of the invention: the invention aims to solve deficiency of the prior art, it is provided that one ± 500kV is flexible straight
Stream cable and sea cable SZ shape single line water-blocking conductor, breach and press the cross section limit that circular stranded conductor causes due to production equipment
System, and milliken conductor can be made up cannot realize long length quantity-produced drawback, use the design of rational structure further
Improve longitudinal water-blocking performance and the activity coefficient of conductor, the activity coefficient of conductor can be made more than 93%, carry for flexible DC power transmission
For excellent performance, cost-effective heavy in section water-blocking conductor；Provide well for exploitation ± 500kV flexible direct current cable and sea cable
Technical support and product supporting, meet offshore wind farm and island power the transmission of development field electric power in the urgent need to.
Technical scheme: one of the present invention ± 500kV flexible direct current cable and sea cable SZ shape single line water-blocking conductor,
Block water strapping tape including center conductor core, the packing material that blocks water, SZ shape single line stranded layer, semiconductive, at center conductor core
It is outside equipped with multilamellar SZ shape single line stranded layer, equal at center conductor core, the copper single line gap of SZ shape single line stranded layer and interlayer
It is provided with the packing material that blocks water, conductor outermost layer is provided with semiconductive and blocks water strapping tape.
Further, described center conductor core uses circular copper single line to make, can according to different conductor cross section demand
It is arranged to an independent circular copper single line or uses many circular copper single lines to press stranded forming by layering, if described center
When conductor thread core uses many circular copper single lines to press stranded forming by layering, then need to insert the material that blocks water in stranding process
Material.
Further, the described packing material that blocks water uses ambient crosslinking type siloxane organic silicon rubber material or contains
The non-weaving cloth material class waterstop of imbibition granule coordinates water blocking yarn and water-proofing powder to combine.
Further, described SZ shape single line stranded layer uses cross sectional shape to be S-shaped or Z-shaped metal cladding or not plating
The copper single line of layer is stranded to be formed, and the number of plies is 1-6 layer.
Further, described SZ shape single line stranded layer needs S-shaped single line stranded layer and Z-shaped single line stranded interlayer time stranded
Every placement, wherein S-shaped copper single line is the most stranded according to counter clockwise direction along conductor direction of advance in process of production, and Z-shaped copper single line exists
Along conductor direction of advance according to clockwise the most stranded in production process, two S-shaped that same stranded layer is adjacent or Z-shaped copper single line
Mutually overlap joint.
Further, the different root of multilamellar is set gradually according to S-shaped copper single line with Z-shaped copper single line size and cross-sectional area of conductor design
The SZ shape single line stranded layer of number.
Further, the described semiconductive strapping tape that blocks water uses and blocks water strapping tape containing the semiconductive of imbibition granule.
Beneficial effect: beneficial effects of the present invention is as follows:
(1) ± 500kV flexible direct current cable and sea cable heavy in section SZ shape single line block water copper conductor close structure, phase in each layer
Two adjacent SZ shape copper single lines the most mutually overlap, and make each layer of SZ shape single line stranded layer constitute a stable overall knot
Structure, it is to avoid other form conductors loose drawback easily occur when the fastening of naked core or other External Force Actings；
(2) ± 500kV flexible direct current cable and sea cable heavy in section SZ shape single line block water copper conductor and round compacted comductor and divide
Cutting conductor to compare, meet long length and produce needs continuously, improve production efficiency, SZ shape monofilament is stranded can significantly improve conductor
Activity coefficient, makes conductor possess more preferable block-water performance, meets the use requirement of submarine transmission, and can be at identical transmission of electricity energy
Line cost is saved largely under power；
(3) ± 500kV flexible direct current cable and the sea cable heavy in section SZ shape single line copper conductor that blocks water is exploitation ± 500kV Large Copacity
Flexible direct current cable and the key technology of sea cable, for nation-building marine resources, promote the strategic development of global energy interconnection
Important role；
(4) ± 500kV flexible direct current cable and the sea cable heavy in section SZ shape single line circular copper conductors that blocks water has filled up domestic similar
The blank of product, is obviously enhanced China's international competitiveness in flexible direct-current transmission field.
Accompanying drawing explanation
Fig. 1 is the structural representation of conductor of the present invention.
Detailed description of the invention
One as shown in Figure 1 ± 500kV flexible direct current cable and sea cable SZ shape single line water-blocking conductor, lead including center
Body core 1, the packing material 2 that blocks water, SZ shape single line stranded layer 3, semiconductive block water strapping tape 4, arrange center conductor core 1 is outer
There is multilamellar SZ shape single line stranded layer 3, be respectively provided with at center conductor core 1, the copper single line gap of SZ shape single line stranded layer 3 and interlayer
Block water packing material 2, conductor outermost layer is provided with semiconductive and blocks water strapping tape 4.
Described center conductor core 1 uses circular copper single line to make, and can be set to one according to different conductor cross section demand
Root individually circular copper single line or use many circular copper single lines to press stranded forming by layering, such as the employing of center conductor core
Many circular copper monofilament press twisting process by layering to be prepared, then need to insert material water-proof material in stranding process.
The described packing material 2 that blocks water uses ambient crosslinking type siloxane organic silicon rubber material or containing imbibition
The non-weaving cloth material class waterstop of granule coordinates water blocking yarn and water-proofing powder to combine, described in the packing material that blocks water have well
Water preventing ability and heat stability, meet product use requirement under hundreds of meter of depth of water environment, and insulating exruded at product
With do not have state change and the situation such as thermal decomposition in cross-linking process and at a temperature of longtime running, to the electric property of cable and
Mechanical and physical performances etc. are without negative effect.
The number of plies of described SZ shape single line stranded layer 3 is 1-6 according to the number of plies that the different requirements of conductor diameter can select
Any one number of plies in Ceng.
Described SZ shape single line stranded layer 3 uses cross section approximate shapes to be S-shaped or Z-shaped copper single line is stranded forms, stranded
Time need to be spaced apart S-shaped single line stranded layer and Z-shaped single line stranded layer, i.e. one layer S-shaped single line stranded layer, one layer of Z-shaped single line
Stranded layer is arranged.Wherein S-shaped copper single line is the most stranded according to counter clockwise direction along conductor direction of advance in process of production, Z-shaped copper list
Line in process of production along conductor direction of advance according to clockwise the most stranded, two S-shaped that same stranded layer is adjacent or Z-shaped copper
Single line mutually overlaps, it is ensured that conductor has good overall structure stability.At center conductor core outer layer according to SZ shape
Copper single line size and cross-sectional area of conductor design set gradually the SZ shape single line stranded layer of multilamellar difference radical, the SZ shape copper list of innermost layer
Line radical is few, becomes big due to sectional area the most outward, and its SZ shape single line radical used just becomes many.
The described semiconductive strapping tape 4 that blocks water uses and blocks water strapping tape containing the semiconductive of imbibition granule.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people being familiar with this specialty
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
Any simple modification, equivalent variations and the modification being made above example, all still falls within the range of technical solution of the present invention.
Claims (5)
1. one kind ± 500kV flexible direct current cable and sea cable SZ shape single line water-blocking conductor, it is characterised in that: include center conductor
Core (1), the packing material that blocks water (2), SZ shape single line stranded layer (3), semiconductive block water strapping tape (4), at center conductor core
(1) multilamellar SZ shape single line stranded layer (3) it is outside equipped with, at center conductor core (1), the copper single line of SZ shape single line stranded layer (3)
Gap and interlayer are provided with the packing material that blocks water (2), conductor outermost layer is provided with semiconductive and blocks water strapping tape (4).
One the most according to claim 1 ± 500kV flexible direct current cable and sea cable SZ shape single line water-blocking conductor, it is special
Levy and be: described center conductor core (1) uses circular copper single line to make, and can be set to one according to different conductor cross section demand
Root individually circular copper single line or use many circular copper single lines to press stranded forming by layering；If described center conductor core
(1) when using many circular copper single lines to press stranded forming by layering, then need to insert material water-proof material in stranding process.
One the most according to claim 1 ± 500kV flexible direct current cable and sea cable SZ shape single line water-blocking conductor, it is special
Levy and be: the described packing material that blocks water (2) uses ambient crosslinking type siloxane organic silicon rubber material or swollen containing water suction
The non-weaving cloth material class waterstop of swollen granule coordinates water blocking yarn and water-proofing powder to combine.
One the most according to claim 1 ± 500kV flexible direct current cable and sea cable SZ shape single line water-blocking conductor, it is special
Levy and be: the copper that described SZ shape single line stranded layer (3) uses cross sectional shape to be S-shaped or Z-shaped metal cladding or not metal cladding
Single line is stranded to be formed, and the number of plies is 1-6 layer.
5., according to one ± 500kV flexible direct current cable and the sea cable SZ shape single line water-blocking conductor of claim 1 or 4, it is special
Levy and be: described SZ shape single line stranded layer (3) needs time stranded to be spaced S-shaped copper single line stranded layer and Z-shaped copper single line stranded layer
Placing, wherein S-shaped single line is according to the most stranded, and Z-shaped single line is according to the most stranded, and same stranded layer is adjacent
Two S-shaped or Z-shaped copper single line mutually overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640250.0A CN106057291A (en) | 2016-08-08 | 2016-08-08 | SZ-shaped single wire water-blocking conductor for +/-500kV flexible DC cable and submarine cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640250.0A CN106057291A (en) | 2016-08-08 | 2016-08-08 | SZ-shaped single wire water-blocking conductor for +/-500kV flexible DC cable and submarine cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106057291A true CN106057291A (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610640250.0A Pending CN106057291A (en) | 2016-08-08 | 2016-08-08 | SZ-shaped single wire water-blocking conductor for +/-500kV flexible DC cable and submarine cable |
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| Country | Link |
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| CN (1) | CN106057291A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610848A (en) * | 2017-08-09 | 2018-01-19 | 江苏亨通高压海缆有限公司 | System and process for improving water resistance of conductor |
| CN110473667A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of flexible water-proof cabtyre cable |
| CN110797136A (en) * | 2019-11-20 | 2020-02-14 | 江苏亨通高压海缆有限公司 | Z-shaped sealed cable conductor of high-voltage direct-current submarine cable and design method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201408563Y (en) * | 2009-02-26 | 2010-02-17 | 江苏通光强能输电线科技有限公司 | Ice and snow proofing overhead conductor |
| JP2010225457A (en) * | 2009-03-24 | 2010-10-07 | Viscas Corp | Low wind pressure wire |
| CN202394555U (en) * | 2011-12-20 | 2012-08-22 | 航天电工技术有限公司 | Steel-cored formed large-section aluminium-alloy conductor |
| CN203397747U (en) * | 2013-08-21 | 2014-01-15 | 重庆泰山电缆有限公司 | Large cross-section compacted circular water blocking conductor |
-
2016
- 2016-08-08 CN CN201610640250.0A patent/CN106057291A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201408563Y (en) * | 2009-02-26 | 2010-02-17 | 江苏通光强能输电线科技有限公司 | Ice and snow proofing overhead conductor |
| JP2010225457A (en) * | 2009-03-24 | 2010-10-07 | Viscas Corp | Low wind pressure wire |
| CN202394555U (en) * | 2011-12-20 | 2012-08-22 | 航天电工技术有限公司 | Steel-cored formed large-section aluminium-alloy conductor |
| CN203397747U (en) * | 2013-08-21 | 2014-01-15 | 重庆泰山电缆有限公司 | Large cross-section compacted circular water blocking conductor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107610848A (en) * | 2017-08-09 | 2018-01-19 | 江苏亨通高压海缆有限公司 | System and process for improving water resistance of conductor |
| CN110473667A (en) * | 2018-05-09 | 2019-11-19 | 江苏宝安电缆有限公司 | A kind of flexible water-proof cabtyre cable |
| CN110797136A (en) * | 2019-11-20 | 2020-02-14 | 江苏亨通高压海缆有限公司 | Z-shaped sealed cable conductor of high-voltage direct-current submarine cable and design method thereof |
| WO2021098003A1 (en) * | 2019-11-20 | 2021-05-27 | 江苏亨通高压海缆有限公司 | Z-shaped sealed cable conductor of high-voltage direct-current submarine cable and design method thereof |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180621 Address after: 226000 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu Applicant after: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd. Applicant after: Global energy Internet Institute, Inc. Applicant after: National Institute of economic and technology research, Jiangsu Electric Power Co., Ltd. Address before: 226000 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu Applicant before: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
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| RJ01 | Rejection of invention patent application after publication |