A grounding wire method and isolated grounding tool for high-voltage transmission lines

Abstract

The invention relates to the technical field of transmission line maintenance, in particular to a grounding wire method and an isolated grounding tool for high-voltage transmission lines for transmission line maintenance. The isolated grounding tool used in the grounding wire method includes: a grounding lead card, an L-shaped screw joint, a screw operating chuck, and an operating rod. The grounding lead card is provided with a screw connected to the L-shaped screw joint thread. The other end of the L-shaped screw joint is connected with the screw operating chuck; the other end of the screw operating chuck is buckled connected with the operating rod. The invention can make the operator who installs the grounding wire neither touch the annealed copper wire nor climb out of the insulator, and can also control the hanging point of the chuck on the wire, so that "wherever it points, hang the grounding wire on the "Where" is convenient, fast, safe and reliable for operators. The work load of the staff is greatly reduced, the work quality of the ground wire is guaranteed, the work time is greatly shortened, and the work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of transmission line maintenance, in particular to a grounding wire method and an isolated grounding tool for high-voltage transmission lines for transmission line maintenance. Background technique [0002] At present, when working on power lines, in order to ensure safety, technical measures such as power outage, power inspection, installation of grounding wires, use of personal security wires, warning signs and installation of barriers must be strictly implemented. Safety plays a vital role. [0003] In the 110KV and 220KV transmission lines, the crocodile-mouth type grounding wires are currently used, and the middle is connected by a wire and an insulating operation rope. When this kind of grounding wire is used, the staff connects one end of the tower with the tower body, and the other end needs to open the bayonet of the grounding wire, hold the rope body on the grounding wire to vertically connect the...

AI Technical Summary

Problems solved by technology

When working on poles and towers, the wires are often far away from the operating point of the staff. The vertical distance between the 110KV wires and the operating point is more than 1700mm. For the suspended wires that swing irregularly in the air, the staff cannot control the clamping of the grounding wire at all. direction in the air

[0006] On the strain tower, the 220KV line anti-inner angle drainage line is not only more than 3000mm away from the operating point, but also not at a perpendicular angle to the operating point. The staff cannot correctly install the grounding line on the drainage line. Weather, this kind of wire-operated grounding wire is blown away from the hanging point, and it is more difficult for the staff to operate. Often the staff has to climb out of the insulator, sit on the wire and hold the wire chuck to install the grounding wire. It is said that the work intensity has been greatly increased

Just hanging the ground wire before work is a safety technical measure that is time-consuming and labor-intensive, delaying normal working hours

[0007] (2) It does not meet the requirements of safety regulations when used, and has serious potential safety hazards

[0008] (1) When installing the grounding wire, the human body cannot touch the soft copper wire of the grounding wire. Because the insulating operation rope is too light, it cannot control the chuck in the air. The self-weight is accurately stuck on the wire, so the staff can only use the relatively heavy soft copper wire of the ground wire to control the chuck to hang the ground wire during the installation process

This will cause the body of the grounding wire to come into contact with the human body. Once there is voltage on the wire or reverse power transmission occurs on the line, the operator will be injured by electric shock due to contact with the soft copper wire, causing casualties

[0009] (2) Since this kind of grounding wire cannot be hung naturally on the inner corner of the tension pole tower by its own gravity, it is only necessary for the operator to climb out of the tension insulator with the clamp in hand and clamp it on the wire, so that the personnel Not only will they be injured by induction electricity, but accidents of people falling from high altitudes and death will occur

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