Processing device for sunshade screen in overhead power transmission line lead span

Abstract

The invention relates to a tool specialized for the power transmission line work, and particularly relates to a processing device for a sunshade screen in the overhead power transmission line lead (ground wire) span. The processing device for the sunshade screen in the overhead power transmission line lead (ground wire) span comprises an insulating barrier removing tackle and an insulating endlessrope. A slide block is arranged on the insulating endless rope in a sleeving way. An operation arm is rotatably connected on the slide block. One end, which is away from the slide block, of the operation arm is connected with a pin ball through a limiting rope. The middle part of the slide block is provided with a cylindrical through hole parallel to the axis of the slide block. One side surfaceof the slide block is provided with a rectangular rotating groove parallel to the axis of the slide block. The upper end and the lower end of the slide block are fixedly connected with the insulatingendless rope through limiting clamps. The two ends of the limiting rope are the pull areas, and the middle is the pull limiting area. The pull force is high and the direction of the pull force can befreely changed so that the processing mode is simple and effective, the manpower and material resources can be saved, the operation safety is high, the sunshade screen of different materials, suspension directions and suspension positions can be processed and the lead (ground wire) can also be effectively protected.

Description

technical field [0001] The invention relates to a special tool for power transmission line operation, in particular to a processing device for a sunshade net in a wire rack of an overhead power transmission line. Background technique [0002] With the rapid development of my country's electric power industry, the design of transmission lines is getting longer and higher, and the transmission lines are often exposed to nature, which will inevitably be affected by the external environment such as strong winds, so that some sunshade nets are suspended in the overhead. Such phenomena are more common in the typhoon season in the conductor or ground wire of the transmission line. The insulation performance of these shading nets is poor. If not dealt with in time, it is very easy to cause interphase short circuit or tower body discharge in the event of thunderstorm, heavy snow, heavy fog and other weather, which will lead to line tripping, power failure and other line faults, which ...

AI Technical Summary

Problems solved by technology

The insulation performance of these sunshade nets is poor. If it is not handled in time, it will easily cause phase-to-phase short circuit or tower body discharge in thunderstorm, heavy snow, heavy fog and other weather, which will cause line tripping, power failure and other line faults, which will cause serious damage to the safe and stable operation of transmission lines. great influence

On the other hand, some sunshade nets are large in size, heavy in weight, high in tensile strength, and are limited by cross-crossing, terrain, etc., making it difficult and time-consuming to process.

[0003] At present, the following three methods are mainly used to deal with the sunshade nets suspended in the overhead transmission line conductors or ground wire stalls: First, the equipotential electrician enters the strong electric field for treatment. This method not only makes the labor intensity of the operators high, but also poses a great risk to the safety of live work. ; The second is power outage processing, this method can not meet the user's continuous power supply requirements, and the power supply reliability of the transmission line is affected; the third is to put the insulation removing block with the insulating non-polar rope into the live wire, and the ground personnel drag it Insulated endless rope and insulation removal block, drag the sunshade net to the ground wire of the pole tower or the hanging point of the insulator wire end, and then use the insulating operating rod to pick out the sunshade net. When dragging in this way, if the sunshade net is tightly wound , the difficulty of dragging will increase. If there are low wires or rivers in the wire gear, the dragging direction will be limited. If conductive objects such as metal wires are wrapped in the sunshade net, it cannot be dragged to the tower ground wire or insulator. At the hanging point of the wire, the sunshade net can only be dragged back and forth in the gear to make it break off and fall off. On-site processing is time-consuming and labor-intensive, and it will also damage the wire

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