Angle tower for charging, breaking and leading-down of single-circuit overhead transmission line cable

Abstract

An angle tower for charging, breaking and leading-down of a single-circuit overhead transmission line cable comprises a tower body, a top layer ground wire cross arm, an upper layer wire cross arm, middle layer wire cross arms and a lower layer auxiliary cross arm. The top layer ground wire cross arm is arranged at the top of the tower body and is in a V shape, and two lateral cross arms are distributed in the direction perpendicular to line directions on the two sides. The upper layer wire cross arm is arranged below the top layer ground wire cross arm and is in a V shape, two lateral cross arms are distributed in the direction perpendicular to line directions on the two sides, strain suspension mid-phase wires are fixed to the tip portions of the cross arms, and cable terminals shaped like the Chinese character 'bo' are fixed to the tip portions of the cross arms. The angle tower has the advantages that the angle tower for charging, breaking and leading-down of the single-circuit overhead transmission line cable is suitable for the corner of an overhead transmission line, can serve as an angle tower with the rotation angle of 45-90 degrees, cable charging and breaking are achieved only with one single-circuit cable charging and breaking strain tower, construction cost is low, occupied area is small, and an original line distribution mode is not changed and suitable for construction of tangent towers nearby.

Description

technical field [0001] The invention relates to the technical field of high-voltage power transmission lines, in particular to a single-circuit overhead power transmission line cable breaking lead-down corner tower. Background technique [0002] At present, existing solutions in the prior art usually adopt two solutions, and the specific solutions are as follows: [0003] (1) Two basic single-circuit cable terminal towers are used, and jumpers are used to guide the wires to the connection of the suspension string, the arrester and the cable head, so as to realize the breaking and leading of the line, but the construction cost and the occupied area are relatively large , which is not conducive to implementation. [0004] (2) Adopt a base double-circuit cable terminal tower, use the single-side wire cross arm of the double-circuit terminal tower to hang the wire, and lead the wire to the cable terminal through the jumper wire, so as to realize the disconnection and down-leadi...

AI Technical Summary

Problems solved by technology

However, the construction cost is relatively high, the tower base covers a large area, and the vertical arrangement of the conductor suspension points at the breaking point is different from the conventional triangular or upper-shaped arrangement, which causes the suspension strings of adjacent straight tower conductors to deviate from the vertical state. When the electrical clearance does not meet the requirements, the adjacent tower needs to be rebuilt, which will greatly increase the construction cost and floor space

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