Single-circuit drilled and spanned steel pipe pole

Abstract

The invention relates to a single-circuit drilled and spanned steel pipe pole. The single-circuit drilled and spanned steel pipe pole comprises a tower body manufactured by steel pipes, and the towerbody is sequentially provided with top layer ground wire cross arms, an upper layer spanned wire cross arm, a middle layer auxiliary cross arm, a lower layer ground wire cross arm, a lower layer spanned wire cross arm and a lower layer hanging-down low-voltage grade wire cross arm from top to bottom; the top layer ground wire cross arms are cross arms on the two sides perpendicular to the spannedside circuit direction, the middle layer auxiliary cross arm comprises a bilateral cross arm parallel to the spanned side circuit direction and a unilateral cross arm perpendicular to the spanned sidecircuit direction; and the lower layer ground wire cross arm, the lower layer spanned wire cross arm and the lower layer hanging-down low-voltage grade wire cross arm are bilateral cross arms perpendicular to the drilled and spanned side circuit direction. According to the single-circuit drilled and spanned steel pipe pole, the circuit coordination difficulty is reduced, the power grid reliability is increased, the construction cost is saved, and meanwhile, the newly-built circuit ground wire ground distance of a drilled and spanned gear is further shortened.

Description

technical field [0001] The invention relates to a pole tower, in particular to a single-circuit drill-span steel pipe pole. Background technique [0002] With the rapid development of the national economy and the continuous improvement of people's living standards, transmission lines, high-speed railways, and expressways are developing rapidly. Due to the increasingly dense distribution of transmission lines, high-speed railways, and expressways, it is inevitable that they are parallel to each other and cross each other. There are often situations where newly-built lines intersect with existing corridors, especially when one side of a newly-built transmission line tower drills over the other side. Drill-through issues are becoming more and more common. According to the requirements of regulations, it is advisable to cross lines with lower voltage levels and drill through lines with higher voltage levels. Therefore, it is common for new transmission lines to cross high-speed...

AI Technical Summary

Problems solved by technology

[0004] (1) Adjust the route of the new line, so that the new line crosses the high-speed railway or expressway in different sections, and then drills through the existing power line. This plan needs to coordinate with the government planning department to re-approve the route, which is difficult; at the same time, increase the scale of the new line , increase engineering investment

[0005] (2) By increasing the already built lines with higher voltage levels or lowering the built lines with lower voltage levels, this solution will lead to long-term power outages on the built lines, which will have a large impact and increase the cost of line construction

[0006] (3) The method of overhead crossing high-speed railways or highways and cable drilling over existing power lines is adopted. The cost of cable entry into the ground is relatively high, which increases project investment

[0007] In summary, the above-mentioned scheme is difficult to construct and the comprehensive cost is high, which is not conducive to project implementation

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