CN202945851U - Medium and heavy ice area 110KV electric transmission line single circuit straight-line tower - Google Patents
Medium and heavy ice area 110KV electric transmission line single circuit straight-line tower Download PDFInfo
- Publication number
- CN202945851U CN202945851U CN 201220414764 CN201220414764U CN202945851U CN 202945851 U CN202945851 U CN 202945851U CN 201220414764 CN201220414764 CN 201220414764 CN 201220414764 U CN201220414764 U CN 201220414764U CN 202945851 U CN202945851 U CN 202945851U
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- transmission line
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Abstract
The utility model discloses a medium and heavy ice area 110KV electric transmission line single circuit straight-line tower. The tower is integrally in a wine glass shape. The medium and heavy ice area 110KV electric transmission line single circuit straight-line tower comprises tower legs, a tower body, lower crank arms, upper crank arms, a wire cross arm and ground wire supports from bottom to top, wherein the wire cross arm is composed of a middle wire cross arm and two side wire cross arms, the vertical distance (H) between the upper plane of the ground wire supports and the lower plane of the side wire cross arms is 4.5 meters, the distance (W1) between two ground wire hanging points on the ground wire supports is 9.2 meters, and the distance (W2) between the two side wire cross arms is 13.2 meters. The medium and heavy ice area 110KV electric transmission line single circuit straight-line tower is capable of improving the requirements for the electrical distance in medium and heavy ice areas and the requirements for structural stress, and capable of improving the capacity of an iron tower for bearing imbalanced tension of ice coatings.
Description
Technical field
The utility model relates to a kind of steel tower that erects power transmission lines, more particularly, relate in particular to a kind of be applicable to icing at 20mm with 110KV transmission line of electricity single loop tangent tower upper, heavy icing area.
Background technology
At the beginning of 2008, the large tracts of land ice damage that occurs in China Central China, some areas, East China has caused serious destruction to China's transmission line of electricity, and the 110KV transmission line of electricity is impaired especially serious.By to ice damage district's transmission line of electricity Field Research, make an on-the-spot survey and analysis is learnt, powerline ice-covering unbalanced tensile force, lead wire and earth wire and wire spacing deficiency are to cause ice damage district transmission line of electricity to fall one of major reason of tower.Because tangent tower bears the ability of icing unbalanced tensile force much smaller than anchor support, the destruction overwhelming majority that causes transmission line of electricity is to be caused by collapsing of tangent tower, thus State Grid Corporation of China in the modular design of issue in 2005 can not satisfy current specifications in, the electrical structure requirement of heavy icing area.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provide a kind of be applicable to icing at 20mm with 110KV transmission line of electricity single loop tangent tower upper, heavy icing area, improve steel tower in, the electrical distance of heavy icing area requires and the structure stress requirement, improves the ability that steel tower bears the icing unbalanced tensile force.
for achieving the above object, in provided by the utility model, heavy icing area 110KV transmission line of electricity single loop tangent tower, comprise tower leg and the tower body that is fixedly connected on tower leg, be fixedly connected with two lower bent levers on tower body, crank arm being fixedly connected with on lower bent lever, be fixedly connected with middle wire cross-arm between the top of cranking arm on two, be fixedly connected with two limit wire cross-arms in the end of middle wire cross-arm, be fixedly connected with two earth wire supports on middle wire cross-arm, be fixedly connected with the ground wire hanging point on the top of earth wire support, vertical distance H between the lower plane of the upper plane of described earth wire support and limit wire cross-arm is 4.5m, distance W 1 between two ground wire hanging points on earth wire support is 9.2m, distance W 2 between the wire cross-arm of both sides is 13.2m.
The utility model adopts technique scheme, can improve steel tower in, the electrical distance of heavy icing area requires and the structure stress requirement, improves the ability that steel tower bears the icing unbalanced tensile force.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: the 1-tower leg; The 2-tower body; The 3-lower bent lever; Crank arm on 4-; Wire cross-arm in 5-; 6-limit wire cross-arm; The 7-earth wire support; 8-ground wire hanging point.
The specific embodiment
The utility model is described in further detail below in conjunction with the embodiment in accompanying drawing, but do not consist of any restriction of the present utility model.
Consult shown in Figure 1, in the utility model, heavy icing area 110KV transmission line of electricity single loop tangent tower, its tower integral body is wine glass-shaped, comprise from the bottom to top tower leg 1, tower body 2, lower bent lever 3, on crank arm 4, wire cross-arm and earth wire support 7, wherein, the wire cross-arm is made of a middle wire cross-arm 5 and two limit wire cross-arms 6.
Described tower leg 1 adopts the complete unequel leg extension design, by 1 meter differential setting, this kind design can arbitrary orientation be regulated the length that steel tower connects leg and is changed with adaptation to the ground, to realize cooperatively interacting of tower leg and landform, can reduce the quantity of sword cutting edge of a knife or a sword excavation when construction, reduce workload.In addition, this kind design drops to minimum to the damaged condition of landform, landforms and vegetation around steel tower, be beneficial to environmental protection.
Described tower body 2 is fixedly connected on tower leg 1, and the cross section of this tower body 2 is square, the tower body of square structure can improve steel tower in, the structure stress situation of heavy icing area, make steel tower stressed better.
Be fixedly connected with two lower bent levers 3 on tower body 2, crank arm 4 being fixedly connected with on lower bent lever 3, be fixedly connected with middle wire cross-arm 5 between 4 the top of cranking arm on two, a wire that is used for the centre of suspension transmission line of electricity, be fixedly connected with two limit wire cross-arms 6 in the end of middle wire cross-arm 5, be used for hanging another two wires of transmission line of electricity.Be fixedly connected with two earth wire supports 7 on middle wire cross-arm 5, be fixedly connected with ground wire hanging point 8 on the top of earth wire support 7, be used for hanging ground wire.
Vertical distance H between the lower plane of the upper plane of described earth wire support 7 and limit wire cross-arm 6 is 4.5m, distance W 1 between two ground wire hanging points 8 on earth wire support 7 is 9.2m, distance W 2 between both sides wire cross-arm 6 is 13.2m, adopts this kind design to improve electrical distance requirement between lead wire and earth wire and wire.
Claims (3)
1. in one kind, heavy icing area 110KV transmission line of electricity single loop tangent tower, comprise tower leg and the tower body that is fixedly connected on tower leg, be fixedly connected with two lower bent levers on tower body, crank arm being fixedly connected with on lower bent lever, be fixedly connected with middle wire cross-arm between the top of cranking arm on two, be fixedly connected with two limit wire cross-arms in the end of middle wire cross-arm, be fixedly connected with two earth wire supports on middle wire cross-arm, be fixedly connected with the ground wire hanging point on the top of earth wire support, it is characterized in that: the vertical distance H between the lower plane of the upper plane of described earth wire support and limit wire cross-arm is 4.5m, distance W 1 between two ground wire hanging points on earth wire support is 9.2m, distance W 2 between the wire cross-arm of both sides is 13.2m.
2. according to claim 1, heavy icing area 110KV transmission line of electricity single loop tangent tower, it is characterized in that: described tower leg adopts the complete unequel leg extension design, by 1 meter differential setting.
3. according to claim 1, heavy icing area 110KV transmission line of electricity single loop tangent tower, it is characterized in that: the cross section of described tower body is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220414764 CN202945851U (en) | 2012-08-20 | 2012-08-20 | Medium and heavy ice area 110KV electric transmission line single circuit straight-line tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220414764 CN202945851U (en) | 2012-08-20 | 2012-08-20 | Medium and heavy ice area 110KV electric transmission line single circuit straight-line tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945851U true CN202945851U (en) | 2013-05-22 |
Family
ID=48421558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220414764 Expired - Fee Related CN202945851U (en) | 2012-08-20 | 2012-08-20 | Medium and heavy ice area 110KV electric transmission line single circuit straight-line tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202945851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133909A (en) * | 2015-09-29 | 2015-12-09 | 中国能源建设集团湖南省电力设计院有限公司 | Uplift-resistant linear tower in mountain area |
-
2012
- 2012-08-20 CN CN 201220414764 patent/CN202945851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133909A (en) * | 2015-09-29 | 2015-12-09 | 中国能源建设集团湖南省电力设计院有限公司 | Uplift-resistant linear tower in mountain area |
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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: 20130522 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |