A double-circuit changing call high pole tower

Abstract

The utility model relates to a high-pole tower with a double-circuit changing call. It includes the tower body and the top-level ground wire cross-arm. The top-floor ground wire cross-arm has a total of one layer. The cross-arms on both sides are arranged perpendicular to the direction of the new line from the tower body. The body of the tower is perpendicular to the direction of the newly-built line, and the middle-level auxiliary cross-arm has multiple layers. Each layer is arranged from the tower body perpendicular to the direction of the newly-built line. The lower-layer conductor cross-arm has three layers in total. , and each layer is arranged with a layer of crossarms on both sides perpendicular to the direction of the new line from the tower body. The present invention realizes double-circuit-changing high-drilling and spanning through a basic invention pole tower, reduces the probability of cross-circuit reconstruction, cable entry into the ground, and single and double-circuit conversion in span-first-drilling projects, avoids power outages of cross-circuits, and increases the power grid Reliability, reducing the construction cost, and further reducing the ground-to-ground distance of the newly-built line of the drilling and jumping gear.

Description

[0001] Technical field: [0002] The invention relates to the technical field of high-voltage transmission lines, in particular to a double-circuit call-changing high pole tower. [0003] Background technique: [0004] Transmission line engineering construction is an important part of power grid construction, and it plays the role of transmission, distribution and voltage regulation in the power system. In view of the fact that transmission lines have the same selection principle for transmission corridors, transmission lines are usually run in parallel for the sake of reducing costs and reducing land occupation. Affected by the location of new substations, newly built lines often intersect with existing transmission lines. 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, transmission lines should be crossed before drilling ( Or drilling first and then crossing)...

AI Technical Summary

Problems solved by technology

[0006] 1) By increasing the line with a higher voltage level or reducing the line with a lower voltage level, it will cause a power outage on the line and increase the cost of line construction

[0007] 2) The method of overhead spanning and cable drilling is adopted, but the cost of cable entry into the ground is relatively high, and it is not easy to inspect after the line is completed

[0008] 3) Change the double circuit to a single circuit, and build a new 2-base single-circuit drilling tower to achieve drilling, which has the problems of large footprint and high construction cost

[0009] To sum up, the construction of the above scheme is difficult and the comprehensive cost is high, which is not conducive to the implementation of the project

Images