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Use green laser pointer to dispose of high voltage wire foreign bodies

On the evening of August 8, the State Grid Zhuzhou Power Supply Company used the green laser pointer to remotely operate and disarmed the foreign objects on the high-voltage tower. The safety hazard was eliminated in the first time, and the occurrence of large-scale power outages and critical power safety incidents was eliminated. It is reported that this is the first time that Zhuzhou has successfully used the foreign matter laser remover of the power grid to dispose of the hidden danger of the foreign body on the UHV line.

At 17:28 on the same day, Zhuzhou Power Supply Company received a call, saying that a dust-proof net was wound around a high-voltage transmission tower near the site at a site beside the Zhuzhou solid waste recycling station. The situation was urgent.

The high-voltage line is a bare line, and there is no insulation on the outside. Once there is heavy fog, rain, etc., the dust-proof net will become a conductor, causing a short circuit of the high-voltage line, causing the line to trip. According to the clues, the Zhuzhou Power Supply Company's transmission and inspection office immediately organized personnel to investigate the actual situation.

According to the survey, the dust-proof net is wrapped around a wire of a 220 kV strain line No. 11 and a 110 kV line of No. 6 double-return tower. This high-voltage transmission tower is responsible for the power supply task of Zhuzhou Power Plant. Once the entire user of Zhuzhou is tripped, the electricity consumption will be affected.

At this time, it is the peak of urban electricity consumption. The power outage and maintenance under high temperature and heavy load will directly affect the normal electricity consumption of residents in various surrounding areas. In combination with the actual situation, the power operation and maintenance personnel finally decided to urgently transfer the “artifact” from the provincial maintenance company to remove foreign objects. This "artifact" scientific name is called the grid foreign body green laser pointer remover, commonly known as "laser gun".

At 18:30, everything is ready. The worker used a laser cannon to aim at the foreign matter on the transmission line, and heated the suspension with a green laser pointer laser beam that emitted the appropriate energy to melt it with the wire winding. At the same time, the disappearance of the foreign matter from the device is eliminated, and no burning phenomenon occurs throughout the entire process, thereby avoiding the influence on the wires and the periphery.

At 19:30, the foreign matter on the wire was cleared, and the alarm that affected the safe operation of the power supply in Zhuzhou City was successfully lifted.

It took only about an hour or so to use the "laser cannon" to eliminate hidden dangers. This type of operation is safe, fast and efficient, and is limited by the working environment. It greatly improves the working efficiency compared with the previous electrified boarding process.

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