CN101847464A - Low-corona lead expanded by using round wire-supported profile line - Google Patents
Low-corona lead expanded by using round wire-supported profile line Download PDFInfo
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- CN101847464A CN101847464A CN 201010153547 CN201010153547A CN101847464A CN 101847464 A CN101847464 A CN 101847464A CN 201010153547 CN201010153547 CN 201010153547 CN 201010153547 A CN201010153547 A CN 201010153547A CN 101847464 A CN101847464 A CN 101847464A
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Abstract
The invention relates to a low-corona lead expanded by using a round wire-supported profile line, belongs to the technical field of the design and manufacturing of leads for transmission line engineering, in particular relates to a lead of a transmission line, which saves materials, reduces energy consuming resources, is more coordinate with the environment and is used for reducing corona loss and reducing noise. The low-corona lead is characterized in that the low-corona lead is an expanded lead which is formed by supporting an outermost profile line of the lead by uniformly-scattered round wires. Round wires are hinged on a force bearing piece and the force bearing piece is positioned in the center of the lead; one layer, two layers or three layers of round wires may be hinged on a profile line conductor layer outside a supporting round wire; the cross sections of the profile lines have an S shape, Z shape, Y shape, C shape, or T shape and the like; and the profile lines are connected with each other in an embedding mode while hinging so as to form a firm and reliable tubular structure and a smooth surface. As the low-corona lead has a large diameter and a smooth surface, the low-corona lead has the advantages of reducing corona loss, reducing line noises, saving lead materials and tower materials for lines and enhancing the conveying capacity of the lines.
Description
Technical field
Belong to work transmission line with lead design, manufacture technology field, more precisely transmission line be economical with materials, resource such as cut down the consumption of energy, and more coordinate with environment, be used to reduce corona loss, reduce a kind of lead of noise.
Background technology
In order to save the used for transmission line material, reduce the corona loss of lead, reduce energy consumption, often adopt expanded conductor in the highlands.Existing expanded conductor technology mainly contains following several:
Take out a strand formula expanded conductor: promptly adjacent outer, the internal layer aluminum steel of lead are taken out some single lines, reach, but obtain bigger wire diameter to reduce the aluminum steel cross section.The structure of this expanded conductor outermost layer aluminum steel is very unstable, the phenomenon of wire jumper may occur, and the single line of taking out can not be too many, collapses otherwise the outer single line of lead is easily routed, so the scope of hole enlargement is restricted.
Do to support and hole enlargement with metal tube: what adopt in early days is zinc-plated metal hose, because it is not corrosion-resistant, lead is early damaged, and galvanized flexible tube not only to the electric conductivity of lead without any benefit, also increase wire weight, reduced the anharmonic ratio of drawing of lead.Later stage makes pipe into made of aluminum, can overcome shortcoming corrosion-resistant and the conduction difference, but the stressed member of lead is difficult to be in the center of lead, thereby structure is stable inadequately, and makes the on the high side of aluminum pipe with extrusion or aluminium strip welding.
Also having a kind of technology is to make pipe with the molded lines strand, and load spare and inside pipe wall in pipe serve as a contrast last 3～4 plastic tubes again with strand system pattern, make conductor structure stable.But the plastic tube of this lead has increased the weight of lead, has reduced the anharmonic ratio of drawing of lead, and manufacture difficulty is increased, and plastic tube does not only have any benefit to the electric property of lead, has also wasted plastics, has increased difficulty to construction simultaneously yet.
On the pipe that molded lines is twisted into, by the aluminum steel and the mixed strand of load spare of conduction, these single lines all are the circle line, it can expand the diameter of lead greatlyyer, but load spare is not in the center of lead, and stress is relatively poor, and it is suitable for the bus as transformer station most at present.
Summary of the invention
The invention provides the hole enlargement scope can be bigger, and load spare is in the center of lead, and the processing of being not difficult, a kind of low electrical discharge wire by the hole enlargement of circle wire-supported profile line that price is not high.
The technical scheme that the present invention takes:
Low electrical discharge wire by the hole enlargement of circle wire-supported profile line, comprise load spare, its scheme is: be in the conductive wire cross-section center load spare around, the even twisted wire that constitutes of the round line around load spare of distributing of white-out, skin is twisted into the outer contact of smooth surface around the axle center by compact arranged molded lines.
Good effect behind enforcement the present invention is:
Utilize conventional wires sectional area and corresponding mechanics, the electrical parameter of former line design to make expanded conductor, it can save the lead material, also can save the iron tower that is complementary, the material on basis etc.Expanded conductor has reduced the corona loss of lead, reduces noise, reduces energy consumption.The low electrical discharge wire of hole enlargement of the present invention not only only is used for the highlands, uses near the circuit the city, can reduce circuit noise, makes circuit and environment harmony, coordination more.
Description of drawings
Fig. 1 is the low electrical discharge wire structural representation of one deck circle wire-supported profile line hole enlargement
A.S molded lines (Z molded lines)
The b.Y molded lines
The c.C molded lines
The d.T molded lines
Fig. 2 is the low electrical discharge wire structural representation of two layers of round wire-supported profile line hole enlargement
E.S molded lines (Z molded lines)
The f.Y molded lines
The g.C molded lines
The h.T molded lines
Illustrate: 1. load spare; 2. justify line; 3.S shape or be Z-shaped molded lines;
4.Y molded lines; 5.C molded lines; 6.T molded lines;
Embodiment
Now the invention will be further described in conjunction with the accompanying drawings
Low electrical discharge wire by the hole enlargement of circle wire-supported profile line, comprise load spare, its formation is: be in the conductive wire cross-section center load spare 1 around, evenly white-out is distributing around the twisted wire of round line 2 formations of load spare, outer by compact arranged molded lines (3,4,5,6) be twisted into the outer contact of smooth surface around the axle center.
Described load spare is a galvanized strand wires, or aluminum-cladding stranded wire or prestress wire or organic fiber reinforced-core.
Described round line around load spare be one deck, two layers or multilayer; Identical with layer circle linear diameter; Two-layer or sandwich construction, the round linear diameter that is in internal layer is slightly less than and is in outer field round linear diameter; The circle line is aluminum steel, aluminium alloy wire or aluminium-clad steel wire.
Described molded lines, its cross section be shaped as S shape or for Z-shaped 3 for Y shape 4 or for C shape 5 and or for T shape 6; The molded lines material is aluminium, aluminium alloy.
Described around or stranded be every deck wire of whole lead, no matter be molded lines or circle line, or the twisted wire of load spare, the strand of its adjacent layer is on the contrary; Outermost strand to, can be left-hand or dextrad, be advisable with dextrad.
Embodiment
Electric conducting materials such as aluminium that lead is used and aluminium alloy are made the molded lines that the cross section is shapes such as S, Z, Y, C or T, with stranded form molded lines are twisted into a columnar tubular structure.The tubular structure that this is twisted into by the conducting metal molded lines, surface are very smooth, and can be made into required random length; The electric conductor of this tubular structure, centre are empty.In hollow tubular structure, place the load spare of strand system, as galvanized strand wires, aluminum-cladding stranded wire or organic material composite fibre core etc., in order to guarantee that load spare is in the center of whole lead and the non-migration or the changing of the relative positions, between load spare and contact tube inwall, play a supportive role with the circle line, the circle line is twisted on load spare, this round line can be dredged is arranged in one deck, two layers or multilayer structure, when adopting several layers circle line to twist the strand product of outside load spare, forming, just with to conduct electricity the internal diameter of the tubular structural member that molded lines is twisted into consistent, this version guarantees that just load spare is in the center of whole conductor cross-section to its external diameter.
Be used for round line as strutting piece, by uniform white-out by every layer round line quantity, the diameter of each interlayer circle line, generally be identical, also can be inequality, but for the round line with the hank layer, diameter is identical, twist interlayer circle linear diameter not simultaneously when difference, the internal layer of close load spare circle line can be less than its outer field diameter; These are as the round line that supports usefulness, and its material is consistent with the material of conductive tubular thing, also can adopt the higher conducting metal wire rod of intensity.Every deck wire of whole lead, no matter be molded lines or circle line, or the twisted wire of load spare, the strand of its adjacent layer is to should be opposite, outermost strand to, can be left-hand or dextrad, commonly usedly be dextrad.
During making the molded lines of making in advance, circle line and load spare are placed on the appropriate location of stranding machine, and guarantee that the circle line is in uniform white-out state, in stranded process once, just can finish the making of low electrical discharge wire.
In order to make the conventional lead of using can obtain bigger diameter, adopt aluminium round wire to support the low electrical discharge wire of aluminium molded lines hole enlargement.
Example 1. steel reinforced aluminium conductor LGJ-500/45, its diameter is 30mm, for the diameter that reaches with steel reinforced aluminium conductor ACSR-720/50 is the corresponding to requirement of 36.2mm, adopt the mode of circle wire-supported profile line hole enlargement to reach: on the galvanized strand wires of 7/3.02mm for this reason, strand system 3/4.81mm outside the lining reaches and two layers of round aluminum steel support structure layers of 6/4.81mm, outermost layer is a S type aluminum steel layer, 20/18.61mm
2, it is tight that strand is made structure, the mutual embedding connection of each S type aluminium single line, thereby very firm, form tubular structure with smooth surface, just making external diameter is the low electrical discharge wire of 36.2mm.
Example 2. steel reinforced aluminium conductor LGJ-630/45 diameters are 33.6mm, for the diameter that reaches with steel reinforced aluminium conductor JL/G1A-900-72/7 is the corresponding to requirement of 39.9mm, adopt the mode of circle wire-supported profile line hole enlargement to reach: on the galvanized strand wires of 7/2.86mm for this reason, two layers of round aluminum steel support structure layers of strand system 3/5.68mm and 5/5.68mm outside the lining reaches, outermost layer is a S type aluminum steel layer, 22/20.33mm
2, it is tight that strand is made structure, the mutual embedding connection of each S type aluminium single line, thereby very firm, form tubular structure with smooth surface, just making external diameter is the low electrical discharge wire of 39.9mm.
Claims (5)
1. by the low electrical discharge wire of justifying the wire-supported profile line hole enlargement, comprise load spare, it is characterized in that: be in the conductive wire cross-section center load spare (1) around, evenly white-out is distributing around the twisted wire of round line (2) formation of load spare, outer by compact arranged molded lines (3,4,5,6) be twisted into the outer contact of smooth surface around the axle center.
2. a kind of low electrical discharge wire according to claim 1 by the hole enlargement of circle wire-supported profile line. it is characterized in that: described load spare is a galvanized strand wires, or aluminum-cladding stranded wire or prestress wire or organic fiber reinforced-core.
3. a kind of low electrical discharge wire according to claim 1 by circle wire-supported profile line hole enlargement. it is characterized in that: described round line around load spare be one deck, two layers or multilayer; Identical with layer circle linear diameter; Two-layer or sandwich construction, the round linear diameter that is in internal layer is slightly less than and is in outer field round linear diameter; The circle line is aluminum steel, aluminium alloy wire or aluminium-clad steel wire.
4. a kind of low electrical discharge wire according to claim 1 by circle wire-supported profile line hole enlargement. it is characterized in that: described molded lines, its cross section be shaped as S shape or for Z-shaped (3) for Y shape (4) or for C shape (5) and or be T shape (6); The molded lines material is aluminium, aluminium alloy.
5. a kind of low electrical discharge wire according to claim 1 by circle wire-supported profile line hole enlargement. it is characterized in that: described around or stranded be every deck wire of whole lead, no matter be molded lines or circle line, or the twisted wire of load spare, the strand of its adjacent layer is on the contrary; Outermost strand to, can be left-hand or dextrad, commonly used be dextrad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010153547 CN101847464A (en) | 2010-04-22 | 2010-04-22 | Low-corona lead expanded by using round wire-supported profile line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010153547 CN101847464A (en) | 2010-04-22 | 2010-04-22 | Low-corona lead expanded by using round wire-supported profile line |
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| CN101847464A true CN101847464A (en) | 2010-09-29 |
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| CN 201010153547 Pending CN101847464A (en) | 2010-04-22 | 2010-04-22 | Low-corona lead expanded by using round wire-supported profile line |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175955A (en) * | 2011-02-17 | 2011-09-07 | 甘肃电力科学研究院 | Windproof corona-resistant expanded conductor for withstand voltage test on extra-high voltage electrical equipment |
| CN102354569A (en) * | 2011-09-22 | 2012-02-15 | 安徽省电力公司合肥供电公司 | Diameter-expanding cable |
| CN102637479A (en) * | 2012-05-22 | 2012-08-15 | 江苏中天科技股份有限公司 | Molded line wire drawing type expanded diameter conducting wire |
| CN102646476A (en) * | 2012-05-15 | 2012-08-22 | 黄豪士 | Stress transfer type guide wire with guide wire arc dependent on force bearing piece and manufacturing method thereof |
| CN102903424A (en) * | 2012-09-28 | 2013-01-30 | 中国电力科学研究院 | Sparsely twisted type expanded lead |
| CN102915787A (en) * | 2011-08-01 | 2013-02-06 | 中国电力科学研究院 | Expanded conductor |
| CN106876031A (en) * | 2017-03-16 | 2017-06-20 | 江苏亨通电力特种导线有限公司 | A kind of self-damping low loss and high strength aluminium Baogang core heat-resisting aluminium alloy twisted wire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02165508A (en) * | 1988-12-20 | 1990-06-26 | Furukawa Electric Co Ltd:The | Low corona and low wind noise electric wire |
| EP0379853A1 (en) * | 1989-01-26 | 1990-08-01 | Cableries Et Corderies Du Hainaut S.A. | Electrical cable for high tensions |
| CN101635177A (en) * | 2008-07-25 | 2010-01-27 | 上海电缆研究所 | Overhead power transmission conducting wire |
-
2010
- 2010-04-22 CN CN 201010153547 patent/CN101847464A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02165508A (en) * | 1988-12-20 | 1990-06-26 | Furukawa Electric Co Ltd:The | Low corona and low wind noise electric wire |
| EP0379853A1 (en) * | 1989-01-26 | 1990-08-01 | Cableries Et Corderies Du Hainaut S.A. | Electrical cable for high tensions |
| CN101635177A (en) * | 2008-07-25 | 2010-01-27 | 上海电缆研究所 | Overhead power transmission conducting wire |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175955A (en) * | 2011-02-17 | 2011-09-07 | 甘肃电力科学研究院 | Windproof corona-resistant expanded conductor for withstand voltage test on extra-high voltage electrical equipment |
| CN102175955B (en) * | 2011-02-17 | 2012-09-05 | 甘肃电力科学研究院 | Windproof corona-resistant expanded conductor for withstand voltage test on extra-high voltage electrical equipment |
| CN102915787A (en) * | 2011-08-01 | 2013-02-06 | 中国电力科学研究院 | Expanded conductor |
| CN102915787B (en) * | 2011-08-01 | 2016-09-28 | 中国电力科学研究院 | Expanded diameter conductor |
| CN102354569A (en) * | 2011-09-22 | 2012-02-15 | 安徽省电力公司合肥供电公司 | Diameter-expanding cable |
| CN102646476A (en) * | 2012-05-15 | 2012-08-22 | 黄豪士 | Stress transfer type guide wire with guide wire arc dependent on force bearing piece and manufacturing method thereof |
| CN102637479A (en) * | 2012-05-22 | 2012-08-15 | 江苏中天科技股份有限公司 | Molded line wire drawing type expanded diameter conducting wire |
| CN102903424A (en) * | 2012-09-28 | 2013-01-30 | 中国电力科学研究院 | Sparsely twisted type expanded lead |
| CN102903424B (en) * | 2012-09-28 | 2017-10-27 | 中国电力科学研究院 | One kind is sparsely stranded type expanded diameter conductor |
| CN106876031A (en) * | 2017-03-16 | 2017-06-20 | 江苏亨通电力特种导线有限公司 | A kind of self-damping low loss and high strength aluminium Baogang core heat-resisting aluminium alloy twisted wire |
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Open date: 20100929 |