On the same day, near Shanghai Huqingping Highway, line inspectors found a plastic film about 5 meters long floating on the conductor between towers from 2460 to 246 1 when inspecting Yihua Line. 500 kV Yihua DC line put into operation. Under the strong wind, the film may float to the ground wire at any time, causing a single-pole grounding fault, which is very urgent.
Considering that the plastic film floats in the middle of the line span and is far away from the towers at both ends, it is very difficult to clean it by conventional live-line operation, which is risky and time-consuming. In order to quickly and safely eliminate hidden dangers, State Grid Shanghai Maintenance Company decided to use drone fire-breathing technology for live-line disposal and clean up the plastic film.
After receiving the task, the "Eagle Eye" youth drone team of State Grid Shanghai Maintenance Company immediately rushed to the scene with a fire-breathing drone. After a short installation and debugging, the drone lifted off lightly and quickly approached the plastic film suspension point. After the order was issued, a flame was ejected from the "mouth" of the drone in the blue sky, and the plastic film burned instantly, then left the ground and fell to the ground. The whole cleaning process only took about 20 minutes.
The use of fire-breathing drones to remove floating objects on the line requires extremely high driving ability of operators. The interference of electromagnetic field to UAV signal, outdoor gust and the psychological quality of flight controllers will all affect the success rate of the whole operation process.
It seems that this technology is quite useful.