Electrical fire monitoring and early-warning method based on anintegration algorithm and device

The invention discloses an electrical fire monitoring and early-warning method based on anintegration algorithm and a device, which comprises steps: S1 residual current of an electrical loop is detected; S2 the residual current is integrated for time to obtain a residual current integral parameter; S3 the voltage and the load current of the electrical loop are obtained; S4 electrical fire hidden trouble situations of the electrical loop are monitored and early-warmed according to integral parameters of various time periods; S5 the electrical fire hidden trouble situations of the electrical loop are alarmed and controlled according to the detection results of the residual current, the voltage and the load current; S6 the temperature on presupposed positions in the electrical loop is detected; and S7 an overtemperature integral parameter is obtained when the temperature is bigger than a setting threshold. The electrical fire monitoring and early-warning method based on the anintegration algorithm and the device