CN203895167U - Lead for extra-high-voltage DC line - Google Patents
Lead for extra-high-voltage DC line Download PDFInfo
- Publication number
- CN203895167U CN203895167U CN201420114110.6U CN201420114110U CN203895167U CN 203895167 U CN203895167 U CN 203895167U CN 201420114110 U CN201420114110 U CN 201420114110U CN 203895167 U CN203895167 U CN 203895167U
- Authority
- CN
- China
- Prior art keywords
- conductor layer
- extra
- lead
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- H01B5/10—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
- H01B5/102—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
- H01B5/104—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of metallic wires, e.g. steel wires
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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
- H01B9/008—Power cables for overhead application
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- Non-Insulated Conductors (AREA)
Abstract
The utility model discloses a lead for an extra-high-voltage DC line. The lead includes an inner conductor formed by twisting seven galvanized steel wires together. A copper conductor layer and an aluminum conductor layer are arranged outside the inner conductor successively from inside out. The lead for the extra-high-voltage DC line provided by the utility model is reasonable in structure, high in strength and high in using safety and facilitates extra-high-voltage power transmission line construction. By adopting the lead provided by the utility model, advantages of large capacity, long range and low loss of extra-high-voltage power transmission can be made full use. Large-range resource superiority configuration can be achieved. Land resource can be saved effectively and construction investment and operation cost can be reduced. Environmental pollution caused by coal power can be reduced.
Description
Technical field
The utility model relates to a kind of electric wire, is a kind of UHVDC Transmission Lines wire specifically.
Background technology
Along with social development, power transmission technology is constantly progressive, and transmission voltage improves constantly, and transmission of electricity length is more and more longer, and transmission of electricity, by past form of communication, develops into interchange, direct current and deposits.As the aerial condutor of electric energy transmitting also development, its security requirement is more and more higher.
The construction that carry out ± 800kV of China direct-current ultra high voltage power transmission engineering exchanges with 1000kV, urgent need is wanted a large amount of special-purpose power transmission lines of ultra high voltage, but current used transmission pressure intensity is low, poor safety performance.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of UHVDC Transmission Lines wire rational in infrastructure and safe to use.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of UHVDC Transmission Lines wire, comprise 7 stranded inner wires that form of galvanized steel wire, and in the outside of inner wire, be provided with successively from inside to outside copper conductor layer and aluminium conductor layer.
Further, described copper conductor layer be by 10 copper cash according to the stranded copper conductor layer forming of inner wire concentric manner.
Further, described aluminium conductor layer be by 66 round aluminum steels according to the stranded aluminium conductor layer forming of inner wire concentric manner.
Further, described aluminium conductor layer haves three layers and simultaneously according to forming with inner wire concentric manner is stranded, the quantity of round aluminum steel is followed successively by 16,22,28 from inside to outside.
Beneficial effect: compared with prior art, the utility model is rational in infrastructure, intensity is high, safe to use, and can realize better UHV transmission line construction, can give full play to that the capacity that UHV transmission has is large, distance, loss is low and can realize resources advantage configuration on a large scale, can effectively economize the land resource, can save construction investment and operating cost, reduce coal electricity environmental pollution.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of UHVDC Transmission Lines wire, comprises inner wire 1, in the outside of inner wire 1, is provided with successively from inside to outside copper conductor layer 2 and aluminium conductor layer 3.Wherein, inner wire 1 is by 7 stranded forming of galvanized steel bar line, copper conductor layer 2 by 10 copper cash according to stranded the forming of inner wire 1 concentric manner.Aluminium conductor layer 3 by 66 round aluminum steels according to stranded the forming of inner wire 1 concentric manner.
Above-mentioned aluminium conductor layer 3 haves three layers and simultaneously according to forming with inner wire 1 concentric manner is stranded, the quantity of round aluminum steel is followed successively by 16,22,28 from inside to outside.
Galvanized steel wire in the utility model adopts G3A Extra High Strength zinc-coated wire, has good mechanical performance and good electric property, and all the conventional wires higher than same specification in IEC standard requires performance.
The external diameter of every galvanized steel bar line is 3.57mm, and the tensile strength of this galvanized steel bar line is not less than 1520Mpa; The external diameter of every round aluminum steel is 4.58mm, and the tensile strength of this circle aluminum steel is not less than 165MPa, and during 20 ℃ of aluminum steels, DC resistivity is not more than 28.034n Ω .m(61.5%IACS).The external diameter of copper cash is also 4.58mm.
Adopt can effectively solve ± 800kV of the utility model UHVDC Transmission Lines transmission of electricity wire.The anti-pull-off force of whole wire is greater than 294.23kN, and in the time of 20 ℃, wire D.C. resistance is not more than 0.02291 Ω/km.
The above is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, do not departing under the prerequisite of the utility model principle; can also make some modification and improvement, these also should be considered as belonging to protection range of the present utility model.
Claims (1)
1. a UHVDC Transmission Lines wire, is characterized in that, it is by 7 stranded inner wires that form of galvanized steel wire, and the copper conductor layer being provided with successively from inside to outside in the outside of inner wire and aluminium conductor layer form; Wherein copper conductor layer be by 10 copper cash according to the stranded copper conductor layer forming of inner wire concentric manner; Described aluminium conductor layer haves three layers and simultaneously according to forming with inner wire concentric manner is stranded, the quantity of round aluminum steel is followed successively by 16,22,28 from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114110.6U CN203895167U (en) | 2014-03-14 | 2014-03-14 | Lead for extra-high-voltage DC line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114110.6U CN203895167U (en) | 2014-03-14 | 2014-03-14 | Lead for extra-high-voltage DC line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895167U true CN203895167U (en) | 2014-10-22 |
Family
ID=51721539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420114110.6U Expired - Fee Related CN203895167U (en) | 2014-03-14 | 2014-03-14 | Lead for extra-high-voltage DC line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565062A (en) * | 2018-03-13 | 2018-09-21 | 南方电网科学研究院有限责任公司 | High-voltage dc transmission electric lead |
-
2014
- 2014-03-14 CN CN201420114110.6U patent/CN203895167U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565062A (en) * | 2018-03-13 | 2018-09-21 | 南方电网科学研究院有限责任公司 | High-voltage dc transmission electric lead |
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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: 20141022 Termination date: 20160314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |