CN204326684U - In, heavy icing area 35kV transmission line of electricity single loop anchor support - Google Patents

In, heavy icing area 35kV transmission line of electricity single loop anchor support Download PDF

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Publication number
CN204326684U
CN204326684U CN201420706095.4U CN201420706095U CN204326684U CN 204326684 U CN204326684 U CN 204326684U CN 201420706095 U CN201420706095 U CN 201420706095U CN 204326684 U CN204326684 U CN 204326684U
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China
Prior art keywords
arm
wire cross
tower
ground wire
tower body
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CN201420706095.4U
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Inventor
许维忠
刘畅
樊维
黄杰
邹建华
张力广
林奇祥
袁巧林
苟明
杨先杰
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Yichang Electric Power Survey & Design Institute Co Ltd
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Yichang Electric Power Survey & Design Institute Co Ltd
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Abstract

The utility model discloses in one, heavy icing area 35kV transmission line of electricity single loop anchor support, its tower entirety is in dry font, comprise tower leg and be fixedly connected on the tower body on tower leg, the top of described tower body is provided with ground wire cross-arm, distance W1 between the ground wire hanging point at described ground wire cross-arm two ends and tower body axis is 1.5 m, the medial end of ground wire cross-arm is provided with upper conductor wire jumper support, the length L of described upper conductor wire jumper support is 0.5 m, the below of described ground wire cross-arm is provided with wire cross-arm, vertical distance H between the lower surface of described wire cross-arm and the upper surface of ground wire cross-arm is 6.8m.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

In, heavy icing area 35kV transmission line of electricity single loop anchor support
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 anchor support.
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 anchor support, 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 anchor support, its tower entirety is in dry font, comprise tower leg and be fixedly connected on the tower body on tower leg, the top of described tower body is provided with ground wire cross-arm, distance W1 between the ground wire hanging point at described ground wire cross-arm two ends and tower body axis is 1.5 m, the medial end of ground wire cross-arm is provided with upper conductor wire jumper support, the length L of described upper conductor wire jumper support is 0.5 m, the below of described ground wire cross-arm is provided with wire cross-arm, vertical distance H between the lower surface of described wire cross-arm and the upper surface of ground wire cross-arm is 6.8m.
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-ground wire cross-arm; 4-upper conductor wire jumper support; 5-inboard wire cross-arm; 6-outboard wire cross-arm.
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 35kV transmission line of electricity single loop anchor support, its tower entirety is in dry font, comprise tower leg 1 and be fixedly connected on the tower body 2 on tower leg 1, 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.The cross section of described 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.
The top of described tower body 2 is provided with the ground wire cross-arm 3 for hanging ground wire, distance W1 between the ground wire hanging point at described ground wire cross-arm 3 two ends and tower body 2 axis is 1.5 m, the medial end of ground wire cross-arm 3 is provided with upper conductor wire jumper support 4, for hanging wire wire jumper, the length L of described upper conductor wire jumper support 4 is 0.5 m.
The below of described ground wire cross-arm 3 is provided with the wire cross-arm for hanging wire, and the vertical distance H between the lower surface of described wire cross-arm and the upper surface of ground wire cross-arm 3 is 6.8m.Described wire cross-arm is made up of inboard wire cross-arm 5 and outboard wire cross-arm 6, distance W2 between the conducting wire hanging point of described inboard wire cross-arm 5 end and tower body 2 axis is 2.4 m, distance W3 between the conducting wire hanging point of described outboard wire cross-arm 6 end and tower body 2 axis is 3.6 m, 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 anchor support, its tower entirety is in dry font, comprise tower leg and be fixedly connected on the tower body on tower leg, it is characterized in that: the top of described tower body is provided with ground wire cross-arm, distance W1 between the ground wire hanging point at described ground wire cross-arm two ends and tower body axis is 1.5 m, the medial end of ground wire cross-arm is provided with upper conductor wire jumper support, the length L of described upper conductor wire jumper support is 0.5 m, the below of described ground wire cross-arm is provided with wire cross-arm, vertical distance H between the lower surface of described wire cross-arm and the upper surface of ground wire cross-arm is 6.8m.
2. single loop anchor support according to claim 1, it is characterized in that: described wire cross-arm is made up of inboard wire cross-arm and outboard wire cross-arm, distance W2 between the conducting wire hanging point of described inboard wire cross arm end and tower body axis is 2.4 m, and the distance W3 between the conducting wire hanging point of described outboard wire cross arm end and tower body axis is 3.6 m.
3. single loop anchor support according to claim 1, is characterized in that: described tower leg adopts complete unequel leg extension design, by 1 meter of differential setting.
CN201420706095.4U 2014-11-24 2014-11-24 In, heavy icing area 35kV transmission line of electricity single loop anchor support Active CN204326684U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420706095.4U CN204326684U (en) 2014-11-24 2014-11-24 In, heavy icing area 35kV transmission line of electricity single loop anchor support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420706095.4U CN204326684U (en) 2014-11-24 2014-11-24 In, heavy icing area 35kV transmission line of electricity single loop anchor support

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CN204326684U true CN204326684U (en) 2015-05-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155907A (en) * 2015-08-31 2015-12-16 国核电力规划设计研究院 Strain tower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155907A (en) * 2015-08-31 2015-12-16 国核电力规划设计研究院 Strain tower

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