Laser Cleaning in Power Grid Maintenance: The Complete Guide To Live-Line, Green, And Intelligent Operations Against the backdrop of accelerated new power system construction, grid operation and maintenance are undergoing a comprehensive upgrade toward live-line, green, intelligent, and low-risk operations. Transmission lines, substation equipment, and new energy station equipment are exposed to harsh outdoor conditions year-round, frequently facing contamination, rust, oxidation, and floating debris entanglement.