Transmission line tangent tower guided by double-loop cable T

Abstract

The invention discloses a transmission line tangent tower using double-loop cable T guide and relates to the technical field of high voltage transmission lines. The tower comprises a tower body, an upper lead cross arm, a middle lead cross arm, a lower lead cross arm, a T connection upper cross arm, a T connection middle cross arm, a T connection lower cross arm and a T connection bottom cross arm, wherein a lightning arrester and a supporting insulator are arranged between every adjacent T connection cross arms which are on the upper portion and the lower portion respectively, the upper end of the lightning arrester is connected to the T connection cross arm on the upper portion, the lower portion of the lightning arrester is connected to the upper end of the supporting insulator, the lower end of the supporting insulator is connected to the T connection cross arm on the lower portion, and a cable terminal is connected to the connection position of the lightning arrester and the supporting insulator. Compared with the traditional strain tower T guide lower tower, the tangent tower is not required to be changed to the strain tower, the use quantity of steel materials and basic use quantity are reduced, the construction cost is saved, a lead cross arm insulator sting is in a V sting design, the lead windage yaw is effectively reduced and the line corridor width is reduced.

Description

technical field [0001] The invention relates to the technical field of high-voltage transmission lines. Background technique [0002] When the existing double-circuit straight towers of high-voltage transmission lines need cable T connection, the straight tower needs to be replaced with a tension tower. The tension tower has the advantages of simple structure and convenient installation of jumpers, but it needs T The method of leading down the cable has the following disadvantages: [0003] 1) The T-connection method needs to change the straight tower to the tension tower, which increases the cost of steel and foundation, and the economy is poor; [0004] 2) In this T-connection method, the layer spacing between conductors is relatively large, the horizontal offset between conductors is small, and the width of the corridor is relatively large. Contents of the invention [0005] The purpose of the present invention is to provide a straight line tower as the cable T-leadi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a straight line tower as the cable T-leading tower, which avoids replacing the straight tower with a strain-resistant tower as the cable lead-down tower in conventional lines, and effectively solves the problem of replacing the cable T-leading tower. Tension-resistant towers, and the resulting increase in cross-arm layer spacing between conductors, increase in the overall height of the tower, a corresponding increase in steel consumption and basic engineering, and poor economic efficiency

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