Tool for live replacement of 220kV line 'V' string insulator and method

Abstract

The invention relates to a tool for the live replacement of 220kV line 'V' string insulators and a method. The tool comprises a supporting bearing component and a V-shaped yoke plate component; the bearing component comprises two identical longitudinal first insulation drawing plates, a first tightening screw rod longitudinally connected to the top end of the first insulation drawing plates, and a double-split hanging hook connected to the bottom end of the first insulation drawing plates, wherein the first tightening screw rod is respectively symmetrically sheathed with two first angle iron fixtures, and a horizontal double-ended screw rod with a screw rod at each end is connected between the two first angle iron fixtures. The V-shaped yoke plate component comprises a longitudinal second insulation drawing plate, a second tightening screw rod longitudinally connected to the top end of the second insulation drawing plates, and a V-shaped yoke plate fixture connected to the bottom end of the second insulation drawing plate, wherein the two lower ends of the V-shaped yoke plate are respectively provided with an upward hook, and the second tightening screw rod is sheathed with a second angle iron fixture. The tool used for disassembling or assembling insulator strings has simple operation, safety, reliability and high working efficiency, and is capable of lowering labor intensity for operators.

Description

technical field [0001] The invention relates to the technical field of live work on electric power transmission lines, and mainly relates to a tool and a method for live replacement of insulator strings. Background technique [0002] In order to make reasonable use of narrow line corridors, "V" string insulators are often used. "V" string insulators can limit the swing angle of insulator strings to the greatest extent, and at the same time reduce the size of the tower head and the width of the line corridor, thereby greatly reducing the Construction, operation and maintenance costs. Due to the long-term operation of the insulator in the field, it is affected by various factors, and the deterioration and damage of the insulator are inevitable. In order to ensure the power supply reliability of 220kV transmission lines, the deteriorated and damaged insulators must be replaced. The 220kV transmission line is an important power transmission channel. If the insulator is replace...

AI Technical Summary

Problems solved by technology

In the prior art, when replacing the "V" series insulators of 220kV line with electricity, the tools used are combined tools with relatively complex structures, the operating procedures are cumbersome, the work is complicated, and the labor intensity of the operators is high. Insulator strings, each combination tool has a smaller applicable surface

In addition, the newly replaced strings of insulators usually cannot be restored to their original position, and angular deviation will occur, affecting the safety and reliability of line operation

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