Special tool for dual protection of wire of strain tower

Abstract

The invention relates to a special tool for dual protection of a wire of a strain tower. The special tool comprises a U-shaped fixture connected with a cross arm, wherein a bolt used for locking the cross arm is installed on a flange on one side of the U-shaped fixture, an insulating rope is connected to a flange on the other side of the U-shaped fixture, and a U-shaped retaining ring is connected to the other end of the insulating rope. The U-shaped fixture is formed by finish machining high-quality special steel. The insulating rope is made of insulating nylon yarn. The head portion and the tail portion of the insulating rope respectively form a closed loop, and the two closed loops are connected with the U-shaped retaining ring and the U-shaped fixture respectively. The special tool aims to overcome the defects that when a wire clamping device is used for dual protection of an original wire, a closed loop is not formed and the wire falls off easily when the wire clamping device is in the loose state, and improve the safety of people, equipment and lines when line repair personnel conduct replacement of a strain insulator string and other operation on the power transmission line strain tower with a 35 kV voltage or a higher voltage.

Description

technical field [0001] The invention relates to a special tool for the secondary protection of the wire of a tension pole tower. Background technique [0002] Line maintenance personnel need to change the original stress state when replacing the tension insulator strings on the tension poles and towers of 35kV and above transmission lines, and transfer the wires and other additional weight from the original insulator strings, fittings, and strain clamps. To the take-up tools (such as double hooks, wire tensioners, etc.), in this way, the safety responsibility of preventing loosening of the tension-resistant pole and tower wires of transmission lines is entirely borne by the take-up tools. There are often some crossed lines, houses, roads, factory buildings, etc. under the conductors. If there is a safety hazard in the wire take-up tool, it may cause a safety accident. In accordance with the requirements of the "Electricity Safety Work Regulations (Line Part)", protective me...

AI Technical Summary

Problems solved by technology

In the past, the anti-loosening protection measure of the wire is to use a wire clamp to clamp the wire on the wire side. This connection method is a non-closed-loop connection. When the wire is in a loose state, it is easy to cause it to fall off due to vibration, which poses a safety hazard.

Therefore, measures must be taken to overcome the non-closed loop of the original wire secondary protection when using the wire clamp, and the problem that it is easy to fall off in a loose state. In the case of wire vibration and other adverse conditions, the wire can still be guaranteed to prevent the second wire from loosening. The protection plays a protective role and can be applied to all 35kV and above transmission line tension towers

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