Vertically grounding down-leading method for internal side of composite material tower and tower thereof

A composite material, grounding down-conductor technology, applied in the direction of connection contact material, cable space arrangement/configuration, electrical components, etc., can solve the problem of not considering lightning protection, etc., to enhance the insulation strength of lightning shock resistance, and the structure is simple , the effect of increasing the insulation distance

Inactive Publication Date: 2010-04-07
STATE GRID ELECTRIC POWER RES INST
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  • Abstract
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  • 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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  • Vertically grounding down-leading method for internal side of composite material tower and tower thereof
  • Vertically grounding down-leading method for internal side of composite material tower and tower thereof
  • Vertically grounding down-leading method for internal side of composite material tower and tower thereof

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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 vertically grounding down-leading method for the internal side of a composite material tower and a tower thereof, wherein the ground wire cross arm is made from a metal material, a section of an upper metal cross arm of a grounding downlead with a certain length along a lead direction is led from the center of the ground wire cross arm, and the tail end of the upper metal cross arm vertically leads the grounding downlead down. The grounding downlead is linked to the tower by a lower metal cross arm thereof with a certain distance under a lower phase lead, and then is grounded downwards along the tower body. If the lower half tower body is a steel tube, the grounding downlead can be directly connected with the steel tube to be grounded. By the increased upper and lower metal cross arms of the grounding downlead, the tower head grounding downlead can be separated at a certain distance away from the composite material tower body. The invention enhances the line capability of power frequency pollution flashover resistance, improves the line insulating strength of lightening impulse resistance, and avoids burning a composite insulator by a power frequency follow current after the lightening flashover; furthermore, the structure is simple, and 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): H02G1/02H02G7/20H02G13/00H01R4/66
Inventor 李志军谷定燮周沛洪戴敏邬雄刘凯刘庭霍锋
Owner STATE GRID ELECTRIC POWER RES INST
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