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Tower cross arm member

A component and iron tower technology, applied in the direction of towers, building types, buildings, etc., can solve the problems of damaged cross-arm silicone rubber, low mechanical strength, damage, etc.

Inactive Publication Date: 2016-01-06
CHANGSHU FENGFAN POWER EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The second is a 220kV lattice composite tower jointly developed by San Diego Gas & Electric (SDGE) and Southern California Edison (SCE). Due to the complexity of the tower connection node structure and the high mold cost, the lattice tower Only 3 test towers were installed
[0004] At present, the existing cross-arm framework in China adopts a rod-shaped structure, and the outer surface is covered with high-temperature vulcanized silicone rubber. The mechanical strength is low, and it is impossible to stand directly on the cross-arm for maintenance, otherwise the umbrella group on the cross-arm will be deformed and damaged; in addition , because the cross-arm is used outdoors for a long time, insect bites and bird pecks will also damage the silicone rubber on the cross-arm, thus affecting the insulation level and service life of the cross-arm

Method used

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Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] see figure 1 and figure 2 , the embodiment of the present invention includes:

[0017] A steel tower cross-arm component, comprising: a skeleton 1, a protective layer 2 covering the outer surface of the skeleton 1, and an umbrella group 3 poured on the outer side of the protective layer 2.

[0018] The cross-sectional shape of the skeleton 1 is D-shaped, consisting of two mutually perpendicular right-angled sides 11 and an arc 12, such as figure 2 shown.

[0019] The frame 1 is made by the process of pultrusion and winding, and the frame 1 is connected by angle steel or plates of composite materials. The connection method can be free ...

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Abstract

The invention discloses a tower cross arm member, comprising a frame, a protective layer covering the outer surface of the frame, and a shed group cast outside the protective layer. The section of the frame is D shaped, formed of two mutually perpendicular right-angle sides and an arc. The frame is formed by connecting steel angels or plates. The tower cross arm member according to the above manner has the advantages such as high mechanical strength, high rigidity, low deformation, weatherability, stressing reasonableness, material efficiency and cost efficiency and is applicable to 500 kV overhead transmission lines.

Description

technical field [0001] The invention relates to the field of iron tower cross arms, in particular to an iron tower cross arm component. Background technique [0002] At present, in the power transmission and distribution system, the cross arm is widely used as a supporting member in the application. The insulating cross-arm is generally equipped with silicone rubber umbrella groups or ceramic umbrella groups, so as to increase the creepage distance, improve the insulation level of the cross-arm, and reduce the transmission corridor of the cross-arm. [0003] At present, there are two typical structural types of composite material towers in foreign countries: one is a tubular composite material pole developed by Canadian RS company, which is widely used in overhead lines of 10kV and 132kV voltage levels in the Alberta area. The second is a 220kV lattice composite tower jointly developed by San Diego Gas & Electric (SDGE) and Southern California Edison (SCE). Due to the compl...

Claims

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Application Information

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IPC IPC(8): E04H12/24
Inventor 顾小蕾赵月华秦磊
Owner CHANGSHU FENGFAN POWER EQUIP
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