CN204590750U - In, heavy icing area 35KV transmission line of electricity single loop tangent tower - Google Patents
In, heavy icing area 35KV transmission line of electricity single loop tangent tower Download PDFInfo
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- CN204590750U CN204590750U CN201420706093.5U CN201420706093U CN204590750U CN 204590750 U CN204590750 U CN 204590750U CN 201420706093 U CN201420706093 U CN 201420706093U CN 204590750 U CN204590750 U CN 204590750U
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Abstract
The utility model discloses in one, heavy icing area 35KV transmission line of electricity single loop tangent tower, its tower entirety is in wine glass-shaped, comprise from the bottom to top tower leg, tower body, lower bent lever, on crank arm, wire cross-arm and earth wire support, described wire cross-arm is made up of a middle wire cross-arm and two limit wire cross-arms, vertical distance H between the upper plane of described earth wire support and the lower plane of limit wire cross-arm is 5m, distance W1 between two ground wire hanging points on earth wire support is 9.5m, and the distance W2 between the conducting wire hanging point of both sides wire cross arm end is 13m.The utility model can not only improve steel tower in, the electrical distance of heavy icing area requires and structure stress requirement, improve the ability that steel tower bears icing unbalanced tensile force, solve the anti-ice cover problem of steel tower, but also there is versatility, also can use in other areas.
Description
Technical field
The utility model relates to a kind of steel tower erected power transmission lines, more particularly, particularly relate to a kind of be applicable to ice covering thickness 20mm and above in, heavy icing area use 35KV transmission line of electricity single loop tangent tower.
Background technology
The shaft tower anti-ice cover ability of the existing modular design of national grid to each grade has clear and definite regulation, is the circuit use being applicable to middle ice formation (namely ice covering thickness is greater than 10mm and is less than 20mm area) to the requirement of shaft tower in the past.Along with the development need of electrical network, circuit will pass through some heavy icing areas (namely ice covering thickness is greater than 20mm and above area), and in existing modular design, do not have this pole and tower design, thus cause the line-outage contingency of falling tower constantly to occur, the development having had a strong impact on electrical network runs.
Along with the appearance of " DLT 5440-2009 re-covers the empty Transmission Line Design technical specification of ice shelf ", some designing institute have developed some anti-ice cover measures according to the actual conditions of self.But due to the difference of region, these measures are difficult at other local applicable, and anti-ice cover problem can not fundamentally be resolved.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, there is provided a kind of be applicable to ice covering thickness 20mm and above in, heavy icing area use 35KV transmission line of electricity single loop tangent tower, to solve the anti-ice cover problem of steel tower, but also there is versatility, also can use in other areas.
For achieving the above object, in provided by the utility model, heavy icing area 35KV transmission line of electricity single loop tangent tower, comprise tower leg and be fixedly connected on the tower body on tower leg, tower body is fixedly connected with two lower bent levers, crank arm on lower bent lever is fixedly connected with, wire cross-arm in being fixedly connected with between the top that two are cranked arm, two limit wire cross-arms are connected with at the end winding support of middle wire cross-arm, middle wire cross-arm is fixedly connected with two earth wire supports, ground wire hanging point is fixedly connected with on the top of earth wire support, vertical distance H between the upper surface of described earth wire support and the lower surface of limit wire cross-arm is 5m, distance W1 between two ground wire hanging points on earth wire support is 9.5m, distance W2 between the conducting wire hanging point of both sides wire cross arm end is 13m.
The utility model adopts technique scheme, can not only improve steel tower in, the electrical distance of heavy icing area requires and structure stress requirement, improve the ability that steel tower bears icing unbalanced tensile force, solve the anti-ice cover problem of steel tower, but also there is versatility, also can use in other areas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-tower leg; 2-tower body; 3-lower bent lever; 4-cranks arm; Wire cross-arm in 5-; 6-limit wire cross-arm; 7-earth wire support; 8-ground wire hanging point.
Detailed description of the invention
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Consult shown in Fig. 1, in the utility model, heavy icing area 110KV transmission line of electricity single loop tangent tower, its tower entirety is in 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, described wire cross-arm is made up of a middle wire cross-arm 5 and two limit wire cross-arms 6.
Described tower leg 1 adopts complete unequel leg extension to design, by 1 meter of differential setting, this kind of design can the arbitrary orientation length that regulates steel tower to connect leg change with adaptation to the ground, to realize cooperatively interacting of tower leg and landform, the quantity of sword cutting edge of a knife or a sword excavation can be reduced when constructing, reducing workload.In addition, the damaged condition of this kind of design to the landform around steel tower, landforms and vegetation drops to minimum, is 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 better stressed.
Tower body 2 is fixedly connected with two lower bent levers 3, lower bent lever 3 is fixedly connected with and cranks arm 4, two are cranked arm 4 top between be fixedly connected with in wire cross-arm 5, for hanging a wire of the centre in transmission line of electricity, two limit wire cross-arms 6 are connected with, for hanging another two wires in transmission line of electricity at the end winding support of middle wire cross-arm 5.Middle wire cross-arm 5 is fixedly connected with two earth wire supports 7, is fixedly connected with ground wire hanging point 8 on the top of earth wire support 7, for hanging ground wire.
Vertical distance H between the upper surface of described earth wire support 7 and the lower surface of limit wire cross-arm 6 is 5m, distance W1 between two ground wire hanging points 8 on earth wire support 7 is 9.5m, distance W2 between the conducting wire hanging point of wire cross-arm 6 end, both sides is 13m, and the utility model adopts this kind of design to improve electrical distance requirement between lead wire and earth wire and wire.
Claims (3)
1. in one kind, heavy icing area 35KV transmission line of electricity single loop tangent tower, comprise tower leg and be fixedly connected on the tower body on tower leg, tower body is fixedly connected with two lower bent levers, crank arm on lower bent lever is fixedly connected with, wire cross-arm in being fixedly connected with between the top that two are cranked arm, two limit wire cross-arms are connected with at the end winding support of middle wire cross-arm, middle wire cross-arm is fixedly connected with two earth wire supports, ground wire hanging point is fixedly connected with on the top of earth wire support, it is characterized in that: the vertical distance H between the upper surface of described earth wire support and the lower surface of limit wire cross-arm is 5m, distance W1 between two ground wire hanging points on earth wire support is 9.5m, distance W2 between the conducting wire hanging point of both sides wire cross arm end is 13m.
2. single loop tangent tower according to claim 1, is characterized in that: described tower leg adopts complete unequel leg extension design, by 1 meter of differential setting.
3. single loop tangent tower according to claim 1, is characterized in that: the cross section of described tower body is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706093.5U CN204590750U (en) | 2014-11-24 | 2014-11-24 | In, heavy icing area 35KV transmission line of electricity single loop tangent tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420706093.5U CN204590750U (en) | 2014-11-24 | 2014-11-24 | In, heavy icing area 35KV transmission line of electricity single loop tangent tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204590750U true CN204590750U (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420706093.5U Active CN204590750U (en) | 2014-11-24 | 2014-11-24 | In, heavy icing area 35KV transmission line of electricity single loop tangent tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204590750U (en) |
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2014
- 2014-11-24 CN CN201420706093.5U patent/CN204590750U/en active Active
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |