A double-circuit transmission line breaking steel pipe tower and system

Abstract

The invention discloses a double-circuit transmission line on-off steel pipe pole tower and system and belongs to the technical field of iron towers for transmission lines. The steel pipe pole tower comprises a main pole, nine wire cross arms and three ground wire cross arms. The upper portion, the middle and the lower portion of the main pole each are provided with the corresponding three wire cross arms, and every three wire cross arms are arranged around the outer wall of the main pole on the same horizontal plane. The three ground wire cross arms opposite to the wire cross arms are arranged on the top of the main pole. A wire hanging point is arranged at the free end of each wire cross arm, and a ground wire hanging point is arranged at the free end of each ground wire cross arm. According to the steel pipe pole tower, normal power transmission work can be achieved during connection and disconnection of a single circuit of the double-circuit transmission line, meanwhile, the wire cross arms and the ground wire cross arms are arranged and symmetrically integrated on the main pole so that the space of the main pole can be utilized in a maximized mode, and under the premise of guaranteeing the overall strength of the double-circuit transmission line on-off steel pipe pole tower, less material consumption and the small occupied area further can be guaranteed; and the double-circuit transmission line on-off steel pipe pole tower has the important significance in reducing of the engineering amount and lowering of the basic comprehensive cost.

Description

technical field [0001] The invention relates to the technical field of iron towers for power transmission lines, in particular to a double-circuit power transmission line breaking steel pipe pole tower and a system thereof. Background technique [0002] The tower is the support used to support the transmission line in the overhead transmission line. According to the material used, it can be divided into reinforced concrete tower and iron tower. The steel pipe tower in the iron tower is a tower made of steel pipe as the main pole. It has the advantages of small footprint and easy installation. It is widely used in the transmission work of double-circuit transmission lines. At present, double-circuit transmission line breaking steel pipe towers are mostly used to realize single-circuit breaking of double-circuit transmission lines on the same tower. It can be seen that it is very necessary to provide a double-circuit transmission line breaking steel pipe tower. [0003] as at...

AI Technical Summary

Problems solved by technology

[0005] Due to the double-circuit transmission line breaking steel pipe tower used in the prior art, two branch towers are respectively arranged on both sides of the breaking point, which will increase the engineering volume, occupy a large area, and increase the cost, resulting in a decrease in project economy.

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