An overhead transmission line
A technology of overhead transmission lines and wires, which is applied in the direction of overhead lines/cable equipment, building types, buildings, etc., which can solve the problems of high production costs and achieve the effect of reducing production costs
Active Publication Date: 2017-08-01
STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD +1
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Problems solved by technology
[0006] In order to solve the problem of high production cost of overhead transmission lines using tension towers instead of linear towers in the prior art, an embodiment of the present invention provides an overhead transmission line
Method used
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0030] like figure 1 As shown, the embodiment of the present invention provides an overhead power transmission line. The overhead power transmission line at least includes: first to third towers, ground wires 5 and conductors 4. The first to third towers are respectively arranged on the ground foundation 6, the second tower 2 is located between the first tower 1 and the third tower 3, and the ground foundation 6 where the second tower 2 is located is lower than the first tower 1 and the third tower 3 Describe the position of the ground foundation 6 where the third pole tower 3 is located,
[0031] The first to third towers respectively include respective tower bodies, respective ground cross arms, respective wire cross arms, respectiv...
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The invention discloses an overhead power transmission line and belongs to the field of power equipment. The overhead power transmission line at least comprises a first tower, a second tower, a third tower, a ground wire and a lead wire, wherein the first tower, the second tower and the third tower are arranged on ground foundations respectively, the second tower is positioned between the first tower and the third tower, and the position of the ground foundation where the second tower is positioned is lower than those of the ground foundations where the first tower and the third tower are positioned. The overhead power transmission line has the advantages that by means of arranging an insulator string of the second tower on a lead wire cross arm of the second tower, during use, the first tower and the third tower generate bilateral pull-up acting force on the second tower through the lead wire, and then the second tower tensions the insulator string of the second tower through the bilateral pull-up acting force on the lead wire to enable that blowing lead wire by wind has little effect on a safe distance between the lead wire and a tower body of the second tower, so that substituting tension-resisting towers for tangent towers in a mountainous area large in altitude difference is avoided, and production cost for the overhead power transmission line is reduced.
Description
technical field [0001] The invention relates to the field of electric equipment, in particular to an overhead power transmission line. Background technique [0002] Transmission lines are divided into overhead transmission lines and underground transmission lines. The overhead transmission line is erected on the ground, and the tower is the main supporting structure of the overhead transmission line, and the load of the wire and the ground wire is borne by the tower. [0003] In mountainous areas with large height differences, since the insulator strings of ordinary straight towers can swing in the direction of the vertical line, when the positions of the towers on both sides of the straight tower in the middle are higher than their positions, in order to ensure the safety of the wires on the tower body distance, strain towers must be used instead of straight towers. [0004] In the process of realizing the present invention, the inventor finds that there are at least the ...
Claims
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IPC IPC(8): H02G1/02E04H12/00E04H12/24
Inventor 陈楠康东升卞鹏董思兵刘晶
Owner STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD