A non-anchored ground wire operation method for transmission lines

Abstract

The invention discloses a non-anchored ground wire operation method for a power transmission line, which comprises the following steps: firstly tightening the ground wire at the tension tower by using a tightening device, and tightening the tightened ground wire by using a ground wire clamp Fix it; draw and print the ground wire corresponding to the width of the cross-arm of the tension pole tower, and then perform a second measurement and printing on the outside of the ground wire; install it at the second measurement and printing of the ground wire Fittings and temporary binding insulators; finally, move the ground wire to the vicinity of the cross-arm, untie the temporary binding of the insulator, and hang the wires into the wire-hanging holes. After the wires are hung on both sides of the cross-arm, install the tower accessories. The invention changes the operation steps of changing the traditional straight pole tower into a tension pole tower, saves the process of anchor line, greatly reduces the time spent on construction, and can complete the reconstruction of the pole tower within five hours, and the speed is increased by more than 5 times .

Description

technical field [0001] The invention belongs to the technical field of overhead power transmission line construction work and technical transformation, and in particular relates to a non-anchored ground wire work method for power 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 order to withstand the tension of the pole section, under this working condition, the traditional method is to anchor the wire of the linear tower on both sides, disconnect the original ground wire, dismantle the linear tower, set up a new tower, extract the original wire, and unfold it again. Complex working procedures such as tightening wires and accessories installation. [0003] The traditional construction method has the following shortcomings: the improvement of the constru...

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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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