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Single-circuit power transmission line straight line side slope tower

A transmission line and single-circuit technology, applied to towers, building types, buildings, etc., can solve problems such as social losses, achieve the effects of reducing operating costs, improving lightning protection capabilities, and reducing natural disaster losses

Active Publication Date: 2014-03-26
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lightning tripping is one of the most common accidents on transmission lines, and the resulting power outage will bring immeasurable losses to society

Method used

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  • Single-circuit power transmission line straight line side slope tower
  • Single-circuit power transmission line straight line side slope tower
  • Single-circuit power transmission line straight line side slope tower

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0015] Single-circuit transmission line straight slope tower, including tower leg 3, tower body 2, tower head 1, three conductors fixedly connected to the tower head (two side-phase conductors and one middle-phase conductor) and conductor insulator strings; The tower head is composed of the lower conductor cross arm 4, the upper conductor cross arm 6, the tower window 5, the lower ground wire cross arm 7, and the upper ground wire cross arm 8; the tower window is located in the center of the tower head, the lower ground wire cross arm, the upper ground wire The cross arm is located at the top of the tower window; the middle phase wire is installed in the tower window by connecting 10 "V" type insulator strings; the lower wire cross arm and the upper wire cross arm are respectively connected by "I" type insulator string 9 to install one side of the pha...

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Abstract

The invention relates to a single-circuit power transmission line straight line side slope tower. The single-circuit power transmission line straight line side slope tower can ensure the distance between an uphill slope side wire and the ground and reduce the height of a downhill slope side wire, and therefore the circuit lightning protection performance is improved. According to the technical scheme, the single-circuit power transmission line straight line side slope tower comprises tower legs, a tower body, a tower head, three wires and wire insulator chains, the tower head is composed of a lower wire cross arm, an upper wire cross arm, a tower window, a lower ground wire cross arm and an upper ground wire cross arm, the lower ground wire cross arm and the upper ground wire cross arm are located at the top end of the tower window, a middle phase wire is installed inside the tower window in a linkage mode, the lower wire cross arm and the upper wire cross arm are located on the two sides of the tower head respectively and respectively provided with one side phase wire in a linkage mode, and the distance between the upper wire cross arm and the ground is basically equal to the distance between the lower wire cross arm and the ground, so that the three wires which are installed inside the lower wire cross arm, the upper wire cross arm and the tower window in a linkage mode are arranged parallel to a natural mountain gradient.

Description

technical field [0001] The invention relates to an iron tower of an overhead power transmission line, and more specifically, relates to a straight slope tower of a single-circuit power transmission line. Background technique [0002] Lightning tripping is one of the most common accidents on transmission lines, and the resulting power outage will bring immeasurable losses to society. However, transmission lines in mountainous areas are more likely to be struck by lightning than flat lines. From the actual operation of the lines, since most mountainous lines are routed along hillsides, horizontally arranged wine glass towers, triangular cat head towers and lower towers are adopted. font tower (eg Figure 2 to Figure 4 As shown) After satisfying the minimum cross-span distance from the conductor on the uphill side to the ground or to trees, due to the existence of the mountain slope A, the distance H1 from the conductor to the ground on the downhill side is much greater than th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/08E04H12/10E04H12/24
Inventor 冯炳
Owner STATE GRID CORP OF CHINA
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