CN202373316U - Diameter-expanding lead - Google Patents
Diameter-expanding lead Download PDFInfo
- Publication number
- CN202373316U CN202373316U CN2011202751454U CN201120275145U CN202373316U CN 202373316 U CN202373316 U CN 202373316U CN 2011202751454 U CN2011202751454 U CN 2011202751454U CN 201120275145 U CN201120275145 U CN 201120275145U CN 202373316 U CN202373316 U CN 202373316U
- Authority
- CN
- China
- Prior art keywords
- conductor layer
- conductor
- twisted wire
- type
- wire
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 75
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 26
- 239000004411 aluminium Substances 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 238000005728 strengthening Methods 0.000 claims description 21
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 230000009191 jumping Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 7
- 230000002950 deficient Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a diameter-expanding lead. The cross section of the diameter-expanding lead is successively provided with a reinforcing core, a twisted wire and an aluminium wire conductor layer from inside to outside. The aluminium wire conductor layer comprises a circular wire conductor layer and a mould wire conductor layer, wherein the circular wire conductor layer is arranged outside the mould wire conductor layer. The aluminium wire conductor layer is in the shape of a Z type, or a Y type, or a C type or a T type wire. The diameter-expanding lead allows a large diameter-expanding rate to be realized, is stable in structure, exhibits fine self-supporting performance, enables defects such as stranding jumping to be avoided, allows a pitch diameter ratio to be within a wide range, is low in cost and simple in manufacturing, and enables the application amount of leads in actual use, the structural size of an iron tower and the width of a line corridor to be minimized.
Description
Technical field
The utility model relates to the electric power transmission line field, is specifically related to a kind of expanded conductor.
Background technology
When transmission line was in high-voltage state or high height above sea level geographical position, the electric field of overhead transmission line, magnetic field, audible noise and radio interference level can exceed related request, for this reason; If plain conductor is adopted in design; Certainly will will strengthen conductor cross-section and the division radical that increases lead, certainly will increase physical dimension and the circuit width of corridor etc. of use amount, the iron tower of lead like this, thereby having strengthened construction investment has caused waste; And common lead generally adopts solid conductor; It is big to have weight, and caloric value is high, and the defective that can not in time dispel the heat.
And compare with the lead in equal aluminium cross section, expanded conductor has bigger diameter, and electric property is better.Under the prerequisite that satisfies transmission line capability and line project requirement, use expanded conductor can save conductor material, and then reduce iron tower load and construction weight.The expanded conductor of the type that is sparsely stranded has had relevant application in high altitude localities, northwest 330kV and 750kV work transmission line.
The type expanded conductor of being sparsely stranded mainly is in original common lay configuration, to extract the purpose that some single lines have reached hole enlargement out; The mode shortcoming of this kind hole enlargement is that enlarging rate is limited; The conductor structure poor stability possibly cause the defectives such as jumping thigh in the unwrapping wire process after the hole enlargement ratio acquires a certain degree; Another kind of hole enlargement mode commonly used is to utilize electric conducting material to process the tubular support core to come hole enlargement, and the shortcoming of this hole enlargement mode is that the processing of supporting-core is relatively more difficult, and cost is than the not flexible overhead transmission line that is not suitable for of lead higher and that process.
The utility model content
The purpose of the utility model is, proposes a kind of expanded conductor that is suitable for overhead transmission line, and structural stability is good.
For realizing above-mentioned purpose, the utility model provides a kind of expanded conductor, and said expanded conductor comprises: strengthening core (1); Its improvements are; Said twisted wire is made up of the circle line, and evenly white-out distributes and around said strengthening core, in the said said twisted wire outside that is made up of the circle line; Be coated with the aluminum steel conductor layer, said aluminum steel conductor layer comprises round line conductor layer and molded lines conductor layer.
In the optimal technical scheme that the utility model provides, said round line conductor layer is arranged on the outside of said molded lines conductor layer.
In second optimal technical scheme that the utility model provides; Said twisted wire around strengthening core is a multilayer, and is wherein, identical with the said twisted wire diameter of layer; The twisted wire diameter that is in internal layer is not more than and is in outer field twisted wire diameter, and said twisted wire is aluminum steel, aluminium alloy wire and aluminium-clad steel wire.
In the 3rd optimal technical scheme that the utility model provides, said strengthening core is galvanized strand wires, aluminum-cladding stranded wire, prestress wire or carbon fiber complex core aluminium stranded conductor.
In the 4th optimal technical scheme that the utility model provides, the shape in the cross section of said molded lines conductor layer adopt " Z type ", " the Y type ", the structure of " C type " or " T type " line.
In the more preferably technical scheme that the utility model provides, said strengthening core, said twisted wire around strengthening core are stranded successively with said molded lines conductor layer and said round line conductor layer, are reverse stranding between the adjacent layer, and outermost strand is to for to the right.
With the prior art ratio, the beneficial effect of the utility model is that said expanded conductor can be realized big enlarging rate; Round line conductor layer is set outside the molded lines conductor layer makes the structure of expanded conductor more stable, the self-supporting performance is good, can avoid jumping the generation of defectives such as thigh; The lay ratio that makes expanded conductor is in a scope than broad; And make that expanded conductor weight is little, caloric value is low, heat radiation is timely, cost is low and make simply, can also reduce the use amount of conductor material, the physical dimension and the circuit width of corridor of iron tower, and the corona loss that reduces lead; Reduce noise, reduce energy consumption.The expanded conductor that the utility model provides not only only is used for the highlands, near the circuit the city, uses, and can reduce circuit noise, makes circuit and environment harmony, coordination more.
Description of drawings
Fig. 1 is the structural representation of conduction radial line
The a.Z molded lines
The b.Y molded lines
The c.C molded lines
The d.T molded lines
Embodiment
Shown in Fig. 1 a, 1b, 1c, 1d, expanded conductor comprises: strengthening core (1), strengthening core (1) are galvanized strand wires, aluminum-cladding stranded wire, prestress wire or organic fiber reinforced-core; Be in around the said strengthening core of conductive wire cross-section center, evenly white-out distributing around said strengthening core, by the twisted wire (2) that the circle line constitutes, said twisted wire is aluminum steel, aluminium alloy wire and aluminium-clad steel wire; In the said said twisted wire outside that constitutes by the circle line, be coated with molded lines conductor layer (3) and circle line conductor layer (4) successively; Said strengthening core (1), said twisted wire around strengthening core (1) (2), said molded lines conductor layer (3) and said round line conductor layer (4) are stranded successively, are reverse stranding between the adjacent layer, and outermost strand is to for to the right.
Wherein, said twisted wire around strengthening core (1) (2) is a multilayer, and identical with said twisted wire (2) diameter of layer, twisted wire (2) diameter that is in internal layer is not more than and is in outer field twisted wire diameter (2); The cross sectional shape of said molded lines conductor layer (3) be " Z type ", " the Y type ", the structure of " C type " or " T type " line; Said round line conductor layer (4) and said molded lines conductor layer (3) are aluminum steel or aluminium alloy wire, and wherein the lay ratio of individual layer aluminium alloy wire or aluminum steel is 10 to 16.
The specification of said expanded conductor can be: the diameter of said expanded conductor is 35.2mm to 47.4mm; Steel wire or aluminium wire that said strengthening core is 3mm to 4.68mm by 7 diameters constitute; Two-layer said twisted wire from the inside to surface is that the round aluminum steel of 4.80mm to 4.82mm and the round aluminum steel of 6 diameter 4.80mm to 4.82mm constitute by 3 diameters respectively, and said molded lines conductor layer is made up of 19 to 21 aluminum steels and cross-sectional area is 14.89mm
2To 22.33mm
2, the round aluminum steel that said round line conductor layer is 4.70mm to 4.75mm by 22 to 29 diameters constitutes.
The specification of said expanded conductor also can be: the diameter of said expanded conductor is 34.4mm to 48.2mm; Steel wire or aluminium wire that said strengthening core is 2.80mm to 2.92mm by 7 diameters constitute; Two-layer said twisted wire from the inside to surface is that the round aluminum steel of 5.64mm to 5.72mm and the round aluminum steel of 6 diameter 5.64mm to 5.72mm constitute by 3 diameters respectively, and said molded lines conductor layer is made up of 20 to 24 aluminum steels and cross-sectional area is 16.26mm
2To 24.40mm
2, the round aluminum steel that said round line conductor layer is 5.50mm to 5.58mm by 25 to 30 diameters constitutes.
Said expanded conductor is made by Qingdao Hanhe Cable Co., Ltd..
What need statement is that the utility model content and embodiment are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the qualification to the utility model protection range.Those skilled in the art can do various modifications, be equal to replacement or improvement under the spirit and principle inspiration of the utility model.But these changes or modification are all in the protection range that application is awaited the reply.
Claims (6)
1. expanded conductor, the cross section of said expanded conductor is strengthening core (1), twisted wire (2) and aluminum steel conductor layer (3,4) from inside to outside successively; It is characterized in that; Said twisted wire (2) is made up of the circle line, and evenly white-out distributes and around said strengthening core (1), in said said twisted wire (2) outside that is made up of the circle line; Be coated with the aluminum steel conductor layer, said aluminum steel conductor layer comprises round line conductor layer (4) and molded lines conductor layer (3).
2. expanded conductor as claimed in claim 1 is characterized in that, said round line conductor layer (4) is arranged on the outside of said molded lines conductor layer (3).
3. expanded conductor as claimed in claim 2; It is characterized in that; Said twisted wire around strengthening core (1) (2) is a multilayer, and is wherein, identical with the said twisted wire diameter of layer; The twisted wire diameter that is in internal layer is not more than and is in outer field twisted wire diameter, and said twisted wire is aluminum steel, aluminium alloy wire and aluminium-clad steel wire.
4. expanded conductor as claimed in claim 3 is characterized in that, said strengthening core (1) is galvanized strand wires, aluminum-cladding stranded wire, prestress wire or carbon fiber complex core aluminium stranded conductor.
5. expanded conductor as claimed in claim 3 is characterized in that, the shape in the cross section of said molded lines conductor layer (3,4) adopt " Z type ", " the Y type ", the structure of " C type " or " T type " line.
6. like claim 1,2,3,4 or 5 described expanded conductors; It is characterized in that; Said strengthening core (1), said twisted wire around strengthening core (1) (2) are stranded successively with said molded lines conductor layer (3) and said round line conductor layer (4); Be reverse stranding between the adjacent layer, and outermost strand is to for to the right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202751454U CN202373316U (en) | 2011-08-01 | 2011-08-01 | Diameter-expanding lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202751454U CN202373316U (en) | 2011-08-01 | 2011-08-01 | Diameter-expanding lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373316U true CN202373316U (en) | 2012-08-08 |
Family
ID=46597010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202751454U Expired - Lifetime CN202373316U (en) | 2011-08-01 | 2011-08-01 | Diameter-expanding lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373316U (en) |
-
2011
- 2011-08-01 CN CN2011202751454U patent/CN202373316U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140327 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140327 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140327 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |