“…In order to effectively prevent and contain the occurrence of electrical fires, according to the process mechanism of electrical fires from heating, storing heat to generating open flames, research institutions and related enterprises in the field of electrical fires had applied electrical fire monitoring technology to develop various types of electrical fire monitoring products. By collecting the residual current [5], fault arc, temperature and other data generated in the process of fire, mathematical models were established to analyze the process data, and then to determine whether there is a hidden danger of electrical fire, and the goal of early warning of electrical fire was achieved [6][7][8]. The electrical fire monitoring products currently produced on the market are mainly divided into 4 categories, residual current electrical fire monitoring detectors, temperature measuring electrical fire monitoring detectors, fault arc electrical fire monitoring detectors and measuring thermal particle electrical fire monitoring detectors device.…”