Composite rotary cross arm

Abstract

The invention discloses a composite rotary cross arm. The composite rotary cross arm comprises a supporting insulator and a composite insulator, wherein the supporting insulator and the composite insulator are hinged to the same side of a tower body; the supporting insulator is vertical to the tower body; the tail end of the composite insulator points to the tail end of the supporting insulator in an inclined manner, and the tail end of the composite insulator is connected with the tail end of the supporting insulator through a wire hanging clipper connected with a ground wire; the supporting insulator is arranged below the composite insulator, and an included angle between the supporting insulator and the composite insulator is 30-45 degrees; components for hinging the supporting insulator and the composite insulator with the tower body comprise two steel angles arranged up and down, two sides, oppositely arranged, of the two steel angles are respectively provided with a hinging shaft, the other sides of the two steel angles are respectively and fixedly connected with the tower body, each hinging shaft is provided with a hinge, the other end of each hinge is provided with a hanging plate, and the hanging plates are vertical to the hinges and are used for respectively connecting the supporting insulator and the composite insulator. The composite rotary cross arm disclosed by the invention has the advantages of simple structure, convenience in implementation, reasonable design, light weight and effective protection on the main body of a tower.

Description

technical field

[0001] The invention relates to a cross-arm on a high-voltage transmission line, in particular to a rotating cross-arm of composite material. Background technique

[0002] At present, most of the towers of transmission lines above 110kV in my country adopt all-steel structures, but the steel has defects such as heavy weight, easy to rust or crack, and there are also problems such as difficulties in construction, transportation, operation and maintenance; moreover, transmission lines with all-steel structures are easy to Faults and accidents such as pollution flashover and wind deflection discharge occur.

[0003] With the development of composite material technology and its manufacturing process, it has become possible to use composite material towers for transmission lines. Composite materials have the characteristics of light weight, high specific strength, corrosion resistance, high and low temperature resistance, and insulation. The use of composite mater...

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