Early detection technology of PVC high voltage cables fire based on gas sensors

The early detection of cable fires can accurately predict the characteristics of the fire, targeted fire prevention and firefighting measures to reduce the probability of fire. Therefore, this paper discusses the early detection technology of PVC cable fire based on gas sensors, and analyzes the performance of quantum dot gas sensors through simulation experiments. The results show that the response range is 1-1900 ppm, the working temperature range is 0~120°C, the resolution of hydrogen is 1. 37×10^-4, the resistance error is less than 4%, which can meet the research and development needs of semiconductor quantum dot gas-sensitive materials and sensors. Through the above-mentioned studies, so as to provide certain reference for the development of early detection technology of PVC cable fire based on gas sensors.