HEFEI — As a key energy transmission link in China's west-to-east power transmission program, Anhui province delivers clean electricity from the west to the Yangtze River Delta with high efficiency. Multiple transmission lines have converged here to form a dense transmission channel in order to reduce the impact of UHV transmission lines on the natural environment. With the help of 5G technology, technicians at the Jiuhua UHV dense transmission channel in Chizhou can conduct real-time maintenance using drones and satellite positioning to ensure smooth electricity transmission along one of China's most important power lines.