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Method for vertical grounding down leading on inner side of composite material tower and tower

A technology of composite materials and grounding down conductors, which is applied in the configuration of grounding wires, towers, building types, etc., can solve problems such as lightning protection that have not been considered, and achieve the effect of enhancing the insulation strength against lightning impact, simple structure, and easy implementation

Inactive Publication Date: 2010-06-16
广东电网公司深圳供电局 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when Canada and the United States use composite material towers, the problem of lightning protection is not considered

Method used

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  • Method for vertical grounding down leading on inner side of composite material tower and tower
  • Method for vertical grounding down leading on inner side of composite material tower and tower
  • Method for vertical grounding down leading on inner side of composite material tower and tower

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Embodiment Construction

[0026] figure 1 Middle mark description: 1-ground wire cross arm, 2-ground down conductor metal cross arm, 3-ground down conductor, 4-ground down conductor metal cross arm, 5-support insulating rod, 6-composite insulator , 7-horizontal arm fittings, 8-the tower body part of the tower head, 9-ground wire, 10-upper phase wire, 11-middle phase wire, 12-lower phase wire, 13-the lower part of the tower body.

[0027] The ground wire cross arm 1 in the present invention is made of metal material, and a certain length D is drawn from the center of the ground wire cross arm 1. 1 The metal cross-arm 2 on the grounding down-conductor along the wire direction, the end of the metal cross-arm 2 on the grounding down-conducting line vertically leads down the grounding down-conductor 3, and the grounding down-conductor 3 must be below the lower phase conductor 12 distance D 2 The metal cross arm 4 is connected to the tower through another grounding down conductor. Adding the metal cross a...

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Abstract

The invention relates to a method for vertical grounding down leading on the inner side of a composite material tower and the tower. In the invention, a ground wire cross arm is made of a metal material; a section of grounding down-lead upper metal cross arm with a certain length is led out from the center of the ground wire cross arm along the direction of the wire; a grounding down-lead is vertically led down at the tail end of the upper metal cross arm; the grounding down-lead is connected to the tower by a grounding down-lead lower metal cross arm from a place which is a certain distance below a down-phase wire; then the grounding down-lead is led down along the tower body to be grounded; and if the lower part of the tower body is a steel tube, the grounding down-lead can be grounded by being connected directly to the steel tube. The added grounding down-lead upper and lower metal cross arms can keep the grounding down-lead on the tower head and the composite material tower body at a certain distance. The method increases the power frequency pollution flashover resistance and lightning surge and insulation strength of the line and prevents a power-flow current generated after lightning flashover from burning composite rafters. The tower has a simple structure and is easy to implement.

Description

technical field [0001] The invention relates to a method for vertically directing the inner side of a composite material pole tower and the pole tower thereof, and belongs to the application field of power transmission technology in electric power systems. Background technique [0002] The tower is an important equipment of the transmission line, and the characteristics of the materials used directly affect the safety, economy and reliability of the line operation. Because steel has the advantages of high strength-to-weight ratio, easy processing and installation, all steel towers are mostly used at home and abroad. However, the all-steel tower also has defects such as high quality (higher steel density) and easy corrosion, so it needs to invest a lot of manpower and material resources in the construction, transportation and maintenance of the tower. With the development of composite material production technology and its manufacturing process, composite materials have the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/22E04H12/22E04H12/24
Inventor 李志军李汉明刘庭魏前虎霍锋詹铭戴敏邓世聪刘凯曹宁邬雄张育华谷定燮周伟才周沛洪李振强娄颖何慧雯
Owner 广东电网公司深圳供电局
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