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Improved cat-head type tower

An improved cat-tower technology, which is applied in the field of improved cat-towers, can solve the problems of high steel consumption index of 500KV double-circuit cat-shaped towers and affect the ability of lightning protection, so as to reduce steel consumption and shorten height effect

Active Publication Date: 2014-04-02
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The design height of the existing conventional double-circuit 500KV line iron tower on the same tower is often more than 60m, which not only affects the ability of lightning protection, but also one of the reasons for the high steel consumption index of the previous 500KV double-circuit cat-shaped tower

Method used

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  • Improved cat-head type tower

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Embodiment Construction

[0010] Such as figure 1 As shown, the present invention includes a tower body 1 and a tower head 2, and a cross arm 3 is arranged above the tower head 2, and the two ends of the cross arm 3 extend downward respectively to form a folding arm 311, and the folding arm 311 and the tower body 1 Connected to form a closed structure to prevent the danger caused by lightning.

[0011] A circuit of three-phase wires is respectively arranged on both sides of the cross arm 3, wherein the two-phase wires 41 and 42 are hung side by side on the cross arm 3 in the form of V-shaped insulator strings, and the next phase is connected at the bottom of the two-phase V-shaped insulator strings. The conductors 43 and the lower phase conductors 43 are also distributed in V-shaped insulator strings. This compact structure also greatly shortens the required height of the tower, thereby reducing the steel consumption of the cat's head tower.

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Abstract

The invention discloses an improved cat-head type tower, which comprises a tower body and a tower head, wherein a cross arm is arranged above the tower head; two end parts of the cross arm downwards extend respectively to form folded arms; and the folded arms are connected with the tower body. By adopting the technical scheme, the folded arms extended from the cross arm and the tower body form a closed structure, so a good anti-lightning effect is achieved; furthermore, with a three-phase circuit lead wire compact-type structure, the required height of the tower body is reduced greatly; therefore, the steel consumption amount of the cat-head type tower is reduced.

Description

technical field [0001] The invention belongs to a power transmission equipment, in particular to an improved cat head tower. Background technique [0002] At present, the linear towers used in my country's 500KV same-tower double-circuit transmission lines are conventional linear towers with three-phase conductors arranged vertically and suspended on both sides of the tower. Under the premise that the distance between the wire and the ground meets the requirements of the regulations, the height of the iron tower usually reaches 60-70m, and the average line corridor occupied is 22m. [0003] The design tower height of existing conventional double-circuit 500KV line towers on the same tower often exceeds 60m, which not only affects the ability of lightning protection, but also one of the reasons for the high steel consumption index of previous 500KV double-circuit cat-type towers. Contents of the invention [0004] The object of the present invention is to provide an improv...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H12/10
Inventor 程乐园孙恒刘凯窦征苑利珍任凯
Owner STATE GRID CORP OF CHINA