Abstract: The infrared temperature measurement technology is very effective for detection of electrical equipment thermal defects, so the technology is applied widely in electric system. In practical application, the measurement accuracy of infrared thermalimaging system, which is based on the principle of infrared measurement, is influenced by many factors. The problems about this respect were analyzed, and some proposals and measures were given in this paper.

Key words: infrared temperature measurement technology, infrared thermalimaging system, electrical equipment, thermal defect, reliability, temperature measurement