CN103953216A - Double-circuit power transmission line using V-shaped combined string straight-line towers - Google Patents
Double-circuit power transmission line using V-shaped combined string straight-line towers Download PDFInfo
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- CN103953216A CN103953216A CN201410117697.0A CN201410117697A CN103953216A CN 103953216 A CN103953216 A CN 103953216A CN 201410117697 A CN201410117697 A CN 201410117697A CN 103953216 A CN103953216 A CN 103953216A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a double-circuit power transmission line using V-shaped combined string straight-line towers and relates to the technical field of high-voltage power transmission lines. The double-circuit power transmission line comprises two base V-shaped combined string straight-line towers and two base 5E1-SZ2 type straight-line towers, wherein the two base V-shaped combined string straight-line towers are respectively arranged at two ends of a tense section of a line corridor, and then the two base 5E1-SZ2 type straight-line towers are respectively arranged on the outer sides of the two base V-shaped combined string straight-line towers; each V-shaped combined string straight-line tower comprises a tower body; a V-shaped combined string is suspended on a cross arm of each tower body; a jump wire support is additionally arranged on a cross arm head; a jumper wire string is suspended below the jumper wire support; the V-shaped combined string is formed by butting two strain insulator-strings which are horizontally arranged along the line direction; meanwhile, a V-shaped connecting fitting is connected at the butted part of the two strain insulator-strings in a direction perpendicular to the line. When the double-circuit power transmission line disclosed by the invention passes through a corridor tension section, the width of the line corridor can be effectively reduced and the workload of channel cleaning is reduced.
Description
Technical field:
The present invention relates to ultra-high-tension power transmission line technical field, relate in particular to a kind of dual loop transmission line that uses V-arrangement combination string tangent tower.
Background technology:
Tangent tower limit, existing ultra-high-tension power transmission line double loop wire phase spacing is larger, tower head width is larger, taking national grid modular design 5E1-SZ2 tower as example, while adopting I string to arrange, tower head width is 19.3m, while adopting V string to arrange, tower head width is 17.4m, and width of corridor demand is large, when by the nervous section in corridor, apart from nearly (seeing Fig. 1) of house, increase channel cleanup engineering quantity, increase the uncertain factor in work progress.
Summary of the invention:
The object of this invention is to provide a kind of dual loop transmission line that uses V-arrangement combination string tangent tower, when by the nervous section in corridor, can effectively compress circuit width of corridor, reduced channel cleanup engineering quantity.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: it comprises two base V-arrangement combination string tangent towers, two base 5E1-SZ2 type tangent towers, the each base V-arrangement combination string tangent tower of installing in nervous section two ends in circuit corridor, and then in the outside of two base V-arrangement combination string tangent towers, one base 5E1-SZ2 type tangent tower is respectively installed respectively, it comprises tower body described V-arrangement combination string tangent tower, on tower body cross-arm, be hung with V-type combination string, add wire jumper support at cross-arm head, wire jumper support below is hung with jumper string, described V-type combination string is docked by two strain insulator-strings along line direction horizontal arrangement, in two strain insulator-string joint horizontal path directions, be connected with and adopt V-type to connect gold utensil simultaneously.
The present invention, compared with conventional shaft tower grouping circuits, has the following advantages:
(1) use V-type combination string tangent tower, short 3.65 meters compared with the one-sided cross-arm of 5E1-SZ2 tower, can effectively compress width of corridor 7.3m, reduce channel cleanup engineering quantity, the civil difficulty while having reduced construction, has controlled construction costs.
(2) the V-type string windage yaw that uses V-type combination string tangent tower and shaft tower connected mode to adopt reduces, and more conventional section lead windage yaw is apart from reducing about 1.9m, and safety is higher.
(3) use V-type combination string tangent tower tower weight to use the conventional double loop tangent tower tower weight of I string and V string light, effectively saved tower material, controlled construction costs.
(4) provide a kind of solution to corridor nervous section line route, improved applicability.
Brief description of the drawings:
Fig. 1 is the structural representation of conventional shaft tower grouping circuits;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of V-arrangement combination string tangent tower;
Fig. 4 is the structural representation of V-type combination string;
Fig. 5 is the left view that in Fig. 4, V-type connects gold utensil.
Detailed description of the invention:
With reference to Fig. 2-4, it comprises two base V-arrangement combination string tangent towers 8 the present invention, two base 5E1-SZ2 type tangent towers 9, the each base V-arrangement combination string tangent tower 8 of installing in nervous section two ends in circuit corridor, and then in the outside of two base V-arrangement combination string tangent towers 8, a base 5E1-SZ2 type tangent tower 9 is respectively installed respectively, wherein V-arrangement combination string tangent tower 8 it comprise tower body 1, on tower body 1 cross-arm, be hung with V-type combination string 2, add wire jumper support 3 at cross-arm head, wire jumper support 3 belows are hung with jumper string 4, described V-type combination string 2 is docked by two strain insulator-strings 5 along line direction horizontal arrangement, in two strain insulator-strings, 5 joint horizontal path directions, adopt V-type to connect gold utensil 6 and connect strain insulator-string 5 and cross-arm simultaneously, it is that the yoke plate 7 being equipped with by lower end is connected with strain insulator-string 5 joints that described V-type connects gold utensil 6, owing to adopting strain insulator-string, so just can realize near tower body without live components, between circuit and tower body, distance is no longer subject to clearance distance control, only need meet under strong wind operating mode strain insulator-string and tower body contactless, and V-type connects gold utensil and no longer needs to install insulator, adopting in addition V-type to connect gold utensil can control circuit windage yaw amount, further reduce wire spaced apart, reduce conducting wire hanging point to ground level, because using strain insulator-string need to adopt wire jumper conducting, as adopt conventional wire jumper, wire jumper is positioned at strain insulator-string below, wire jumper is originally as electrical body, for meeting the electric clearance of wire and tower body, hitch point position is subject to wire jumper clearance control, and the present invention is by increasing wire jumper support, the jumper string that adopts wire jumper support below to hang makes wire jumper realize wire conducting function and meet electric clearance requirement away from tower body, in the case of not changing the mechanical characteristic of insulator string, shaft tower compared with conventional needle to corridor compression, effectively reduce tower head width, reduce shaft tower weight, reducing circuit corridor takies.
Because 5E1-SZ2 type tangent tower 9 planning can compatible 0～3 ° of corner, in the present invention, use 5E1-SZ2 type tangent tower 9 to turn 0.54 ° to 220kV side, approximately 3.65 meters of offset distances, make full use of 3.65 meters of width of corridors that V-arrangement combination string tangent tower 8 is saved, because use after V-arrangement combination string tangent tower 8, in the present invention, central lines of track can be to 3.65 meters of built line side skews, away from 3.65 meters of the same compressions of built line side circuit cross-arm, add up to like this distance between limit wire and house owed by a citizen to expand 7.3 meters, thereby effectively control housing demolition amount, solve the nervous section in corridor and used the large shortcoming of conventional shaft tower channel cleanup engineering quantity.
Claims (2)
1. one kind uses the dual loop transmission line of V-arrangement combination string tangent tower, it comprises two base V-arrangement combination string tangent towers, two base 5E1-SZ2 type tangent towers, the each base V-arrangement combination string tangent tower of installing in nervous section two ends in circuit corridor, and then in the outside of two base V-arrangement combination string tangent towers, one base 5E1-SZ2 type tangent tower is respectively installed respectively, it is characterized in that, it comprises tower body described V-arrangement combination string tangent tower, on tower body cross-arm, be hung with V-type combination string, add wire jumper support at cross-arm head, wire jumper support below is hung with jumper string, described V-type combination string is docked by two strain insulator-strings along line direction horizontal arrangement, in two strain insulator-string joint horizontal path directions, be connected with and adopt V-type to connect gold utensil simultaneously.
2. according to the transmission line of electricity described in claim 1, it is characterized in that, it is that the yoke plate being equipped with by lower end is connected with strain insulator-string joint that described V-type connects gold utensil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117697.0A CN103953216B (en) | 2014-03-24 | 2014-03-24 | A kind of dual loop transmission line that string tangent tower is combined using V-arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117697.0A CN103953216B (en) | 2014-03-24 | 2014-03-24 | A kind of dual loop transmission line that string tangent tower is combined using V-arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953216A true CN103953216A (en) | 2014-07-30 |
| CN103953216B CN103953216B (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410117697.0A Active CN103953216B (en) | 2014-03-24 | 2014-03-24 | A kind of dual loop transmission line that string tangent tower is combined using V-arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN103953216B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07176233A (en) * | 1993-12-20 | 1995-07-14 | Asahi Tec Corp | Jumper wire v-shape hanging device |
| JPH11127532A (en) * | 1997-10-20 | 1999-05-11 | Asahi Electric Works Ltd | Arm device for steel tower |
| CN201430398Y (en) * | 2009-06-19 | 2010-03-24 | 河南省电力勘测设计院 | Three-column position-changing tension tower |
| CN202601332U (en) * | 2012-06-06 | 2012-12-12 | 南京电力金具设计研究院 | Combined strain insulator string |
| CN103022951A (en) * | 2012-12-27 | 2013-04-03 | 四川电力设计咨询有限责任公司 | Jumping around transposition tower in common-tower double-circuit transmission line |
-
2014
- 2014-03-24 CN CN201410117697.0A patent/CN103953216B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07176233A (en) * | 1993-12-20 | 1995-07-14 | Asahi Tec Corp | Jumper wire v-shape hanging device |
| JPH11127532A (en) * | 1997-10-20 | 1999-05-11 | Asahi Electric Works Ltd | Arm device for steel tower |
| CN201430398Y (en) * | 2009-06-19 | 2010-03-24 | 河南省电力勘测设计院 | Three-column position-changing tension tower |
| CN202601332U (en) * | 2012-06-06 | 2012-12-12 | 南京电力金具设计研究院 | Combined strain insulator string |
| CN103022951A (en) * | 2012-12-27 | 2013-04-03 | 四川电力设计咨询有限责任公司 | Jumping around transposition tower in common-tower double-circuit transmission line |
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| Publication number | Publication date |
|---|---|
| CN103953216B (en) | 2017-12-15 |
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