Operating method for unanchored ground conductor of power transmission line

Abstract

The invention discloses an operating method for the unanchored ground conductor of a power transmission line, which comprises the steps of firstly, tightening a ground conductor at a strain tower by means of a take-up device, fixing the tightened ground conductor by means of a ground conductor fixture, marking the ground conductor corresponding to the width of the cross arm of the strain tower, measuring and marking the outside of the marked part of the ground conductor for a second time, installing hardware fittings and temporarily binding insulators at the secondary measured and marked part of the ground conductor, finally moving the ground conductor to be around the cross arm, releasing the temporary binding of the insulators, hanging wires in wire hanging holes, and installing tower accessories after the wire hanging operation at the two sides of the cross arm. According to the invention, the operation step of converting a traditional suspension tower into a strain tower is changed, and the wire anchoring step is saved. The construction time is greatly reduced. Therefore, the reconstruction operation of the tower can be completed within five hours, and the reconstruction speed can be improved by over 5 times.

Description

technical field [0001] The invention belongs to the technical field of construction operation and technical transformation of overhead transmission lines, and in particular relates to a non-anchored ground wire operation method for transmission lines. Background technique [0002] In recent years, with the construction of infrastructure and the construction of expressways and electric railways, the tasks of technical transformation and upgrading of operating transmission lines have also increased. In this case, the traditional method is to anchor the wires of the straight towers on both sides, disconnect the original ground wires, dismantle the straight towers, assemble a new tower, pull out the original wires, and re-arrange. Complicated work procedures such as thread tightening and accessory installation. [0003] The traditional construction method has the following shortcomings: improving the construction method makes the construction occupy more land, takes a long time...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the construction of infrastructure and the construction of expressways and electric railways, the tasks of technical transformation and upgrading of operating transmission lines have also increased. In this case, the traditional method is to anchor the wires of the straight towers on both sides, disconnect the original ground wires, dismantle the straight towers, assemble a new tower, pull out the original wires, and re-arrange. Complicated work procedures such as wire tightening and accessory installation

[0003] The traditional construction method has the following shortcomings: improving the construction method makes the construction occupy more land, takes a long time, and reduces the construction tools. , Ground wire, the purpose is to prevent the tower from tilting due to unbalanced tension after the straight line wire is broken; due to the need to dig temporary cable pits to pre-bury anchor piles and anchor lines to reach more than 1.2 times the height of the pole, damage crops, and more compensation for land occupation There are too many, and it is easy to have conflicts with farmers, which affects the construction period and consumes a lot of labor and time.

In 2012, the reconstruction of No. 10 to No. 16 towers of 110kV xx line; each line reconstruction involves a large area of ​​land compensation compensation for farmers, and the construction progress is affected by villagers' obstacles, delaying power outages or being affected by the construction period. It takes 5 days , the cost is hundreds of thousands of yuan

[0005] Therefore, the traditional method of using anchorage for line reconstruction is no longer suitable for modern power operations.

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