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

A composite material and grounding down-conductor technology, which is applied in the configuration of grounding wires and other directions, can solve the problem of not considering lightning protection, etc., and achieve the effect of enhancing the insulation strength of lightning shock resistance, easy to implement, and simple in structure.

Active Publication Date: 2011-05-18
广东电网公司深圳供电局 +1
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  • Abstract
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AI Technical Summary

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

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Embodiment Construction

[0020] Marking description in Figure 1: 1-cross arm for ground wire, 2-metal cross arm for grounding down-lead, 3-grounding down-lead, 4-metal cross-arm for grounding down-lead, 5-support insulating rod, 6- Composite insulator, 7-horizontal arm fittings, 8-tower body part of tower head, 9-ground wire, 10-upper phase wire, 11-middle phase wire, 12-lower phase wire, 13-lower part of tower body.

[0021] 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 arm 2 on the ...

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Abstract

The invention relates to a method for the vertical grounding down-leading on the inner side of a composite material pole tower and a pole tower thereof. 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 a wire; a grounding down-lead is led down vertically from the tail end of the upper metal cross arm; the grounding down-lead which is a certain distance below a lower phase wire is connected to the pole tower by a grounding down-lead lower metal cross arm, and the grounding down-lead extends downwards along the body of the tower to be grounded; and if the lower part of the body of the tower is made of steel tubes, the grounding down-lead can be grounded on the steel tubes directly. The additional grounding down-lead upper and lower metal cross arms realize that the grounding down-lead of the head of the tower is at a certain distance to the composite material tower body. The pole tower enhances the capabilities of resisting pollution flashover under power frequency of lines, increases the thunder-and-lightning-resistance insulation strength of the lines, avoids the burning of a composite insulator by a power-frequency flow current after lightning flash over is avoided, 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): H02G7/22
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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