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Electric transmission line tower using composite insulators

A technology of combining insulators and transmission lines, which is applied in the field of transmission line poles and towers, and can solve the problems of large bending and torsion effects of cross-arms and tower bodies, which affect the stability and service life of poles and towers

Inactive Publication Date: 2013-09-04
STATE GRID CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The connection point between the cross arm and the tower body is the action point of the wire load on the tower body. In order to ensure that the wire has a sufficient safety distance from the ground or the object to be crossed, the action point of the wire load is higher, so that the cross arm and the tower The bending and torsion effect on the body is relatively large, which affects the stability and service life of the tower structure

Method used

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  • Electric transmission line tower using composite insulators
  • Electric transmission line tower using composite insulators
  • Electric transmission line tower using composite insulators

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Embodiment Construction

[0038] The core of the present invention is to provide a transmission line tower using combined insulators. The design of the tower can reduce the bending and torsion effect of the wire load on the tower, thereby reducing tower weight and foundation load, saving materials, and effectively reducing engineering costs.

[0039] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Please refer to figure 1 , figure 1 It is a front view of a specific embodiment of the power transmission line tower provided by the present invention.

[0041] Such as figure 1 As shown, the tower 1 of the transmission line includes a tower leg 13, a tower body 12 and a tower head 11 connected in sequence; the side of the tower 1 is provided with a cable-stayed insulator 3 and a post insulator 2; here, the ca...

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Abstract

The invention discloses an electric transmission line tower using composite insulators. The electric transmission line tower using the composite insulators comprises tower legs, a tower body and a tower head, and further comprises at least one group of composite insulators which are arranged on the lateral side of the tower and are composed of a suspension insulator and a supporting insulator. One end of the suspension insulator is connected with the tower body, the other end of the suspension insulator is connected with one end of the supporting insulator, the other end of the supporting insulator is connected with the tower body, and the connecting point of the other end of the supporting insulator and the tower body is located below the connecting point of the suspension insulator and the tower body. One end, connected with the suspension insulator, of the supporting insulator is provided with a link fitting. Because the supporting insulator is hinged to the tower body, the bending moment, of the supporting insulator, generated by unbalanced wire tension and the bending moment and the torque, generated by the unbalanced wire tension, of the tower are eliminated, and requirements for the strength of the supporting insulator and the tower are reduced. On the premise that the clearance to ground of a wire is guaranteed, the height of the electric transmission line tower using the composite insulators is reduced, the bending and twisting affect of a conductor load on the tower and the basis load of the tower are reduced.

Description

technical field [0001] The invention relates to the technical field of power transmission lines, in particular to a power transmission line pole and tower using combined insulators. Background technique [0002] At present, the towers of transmission lines at home and abroad all use fixed cross-arms, that is, the cross-arms are arranged horizontally on the upper part of the tower body, and the insulator strings are set under the cross-arms to suspend the wires. Due to their own weight, ice or wind, the wires Installation or accident conditions can generate loads on the tower. [0003] The connection point between the cross arm and the tower body is the action point of the wire load on the tower body. In order to ensure that the wire has a sufficient safety distance from the ground or the object to be crossed, the action point of the wire load is higher, so that the cross arm and the tower The bending and torsion effect on the body is relatively large, which affects the stab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/24
Inventor 高理迎孙涛
Owner STATE GRID CORP OF CHINA
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