10 kV live-line work lap joint arc extinguishing device

Abstract

A 10 kV live-line work lap joint arc extinguishing device comprises an insulating operating rod, a wire clamp, an arc extinguishing mechanism, an opening and closing mechanism, a wiring guide column and a drainage wire; the top of the insulating operating rod is connected with the wire clamp through a screw rod; the back of the wire clamp is fixedly connected with one side surface of the arc extinguishing mechanism through a connecting piece; the opening and closing mechanism is arranged on the side, opposite to the wire clamp, outside the arc extinguishing mechanism; the wiring guide column is fixedly and electrically communicated with the bottom of the arc extinguishing mechanism; one end of the drainage wire is connected with the wiring guide column through the equipment wire clamp; and the wire is electrically communicated with the drainage wire through the wire clamp, the arc extinguishing mechanism and the wiring guide column.

Description

technical field [0001] The invention relates to the technical field of auxiliary tools for live work, in particular to a lap arc suppression device for 10kV live work. Background technique [0002] With the development of social economy, people's quality of life is constantly improving, and the requirements for power supply reliability are getting higher and higher. The application of live working technology in the work of 10kV distribution network maintenance and construction, maintenance and elimination, and user access has become an important part of improving power supply. Reliability is the most direct and effective important technical means. When lapping branch lines or cable lines in 10kV live work, in order to ensure the safety of branch lines or cable lines, it is necessary to lap temporary drain lines first, but when lapping drain lines, due to the influence of inductive capacitance and current, it is extremely difficult It is easy to generate arc, which is not co...

AI Technical Summary

Problems solved by technology

When lapping branch lines or cable lines in 10kV live work, in order to ensure the safety of branch lines or cable lines, it is necessary to lap temporary drain lines first, but when lapping drain lines, due to the influence of inductive capacitance and current, it is extremely difficult It is easy to generate arc, which is not conducive to safe operation. Traditionally, an insulating operating rod is used to directly connect the drain wire to the main wire. Due to the use of the operating rod, the point where the arc is generated is at a certain distance from the operator, but due to the manual operation of the insulating operation The lapping speed of the rods is slow, and the corresponding arc light is relatively large. At the same time, the arc light cannot be eliminated, and there is still a large safety hazard

In view of the above deficiencies, the prior art 200420022855.6 provides a live arc suppression and drainage operating rod, but there are problems. First, there is a single-point contact between the moving contact and the static contact, and the contact point is easy to wear and fail, and cannot be formed after failure. Conductive path, the life of the equipment is low and there are potential safety hazards; second, the moving contact is set under the static contact, and under the elastic force of the compression spring, it moves from bottom to top to the position of the static contact and communicates with it. The effect will offset part of the elastic force of the compression spring, resulting in a slower movement of the moving contact to the static contact, and the arc is generated when the moving and static contacts are about to contact, so the moving speed of the moving contact is slower, resulting in the probability of arcing Larger, the arc suppression effect is poor and the safety is lower; third, the moving contact is connected to the wiring bolt through the wire wound on the insulating connecting rod, resulting in weak flow capacity and low safety; fourth, the opening and closing The operating mechanism, the insulating connecting rod, the moving contact, and the static contact are coaxially arranged in the main insulating tube. Due to the frequent operation of the opening and closing operating mechanism, the main insulating tube is easily damaged, which brings potential safety hazards

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