110 kV drill-span dual-purpose tension tower

Abstract

The invention relates to the field of transmission line poles, in particular to a 110 kV drill-span dual-purpose tension tower, which comprises a tower leg and a tower body arranged on the tower leg.The 110 kV drill-span dual-purpose tension tower is characterized in that an upper layer road cross arm and a lower layer road cross arm are arranged on the tower body from top to bottom respectively, the upper layer road cross arm is composed of an upper layer ground wire cross arm, an upper layer upper-phase wire cross arm, and an upper layer lower-phase wire cross arm which are arranged from top to bottom, and the lower layer road crossarm is composed of a lower layer ground wire crossarm, a lower layer upper-phase wire cross arm, and a lower layer lower-phase wire crossarm which are arranged from top to bottom. The unique feature of the 110 kV drill-span dual-purpose tension tower is that when encountering a line which needs to be drilled or crossed, it is not necessary to newly build a pole tower, the upper layer road cross arm is used for achievingspanningand the lower layer road cross arm is used for achieving drilling by utilizing the vertical height of the pole towerunder the premise of ensuring a safe electrical clearance, occupation of land by the newly builtpole tower can be avoided, the110 kV drill-span dual-purpose tension tower can adapt to various working conditions, and the suitable application range is wide.

Description

technical field [0001] The invention relates to the field of transmission line towers, in particular to a 110 kV drill-span dual-purpose tension tower. Background technique [0002] With the vigorous development of electric power construction, the corridors of line paths are becoming more and more tense. Considering the factors of urban planning, some high-voltage lines often run along parallel lines such as existing expressways and railways. If new lines cross the original lines, they often face demand. In two adjacent consecutive gears, one gear crosses the original high-voltage line, and the other gear crosses the expressway or railway. In order to ensure the safe distance of drilling and crossing the safe distance, the conventional practice in the past is to use a low-profile special tower for drilling and then use a high straight tower to raise the height of the conductor of the adjacent gear to cross the highway or railway. The clear span and tower layout requirements...

AI Technical Summary

Problems solved by technology

In order to ensure the safe distance of drilling and crossing the safe distance, the conventional practice in the past is to use a low-profile special tower for drilling and then use a high straight tower to raise the height of the conductor of the adjacent gear to cross the highway or railway. The clear span and tower layout requirements are relatively strict, and there are many conditions subject to on-site constraints. Under extreme conditions, it is even necessary to change to a cable scheme for unified drilling, which brings problems such as complex engineering construction schemes and high investment costs.

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