Infrared temperature measurement windows are optical windows that can transmit infrared, ultraviolet, and visible light, installed on the shell of electrical cabinets. They are primarily used for internal temperature measurement in various high-voltage switchgear, metal-clad cabinets, urban ring network cabinets, and GIS high-voltage equipment. By utilizing infrared thermal imaging cameras and temperature sensors, commonly used in the power system, in conjunction with the "Infrared Guidelines," they enable the identification of overheating faults. Through the infrared temperature measurement windows, various non-destructive inspections of the equipment inside the cabinets can be conveniently performed, allowing for timely and effective detection of potential high-voltage accidents, and preventing their occurrence.