Electrical fire detection method and system of causal model

The invention relates to the technical field of electrical fire detection and particularly relates to an electrical fire detection method and system of a causal model. The electrical fire hazard detection method comprises the following steps of establishing an electrical fire hazard cause and effect model, wherein the electrical fire hazard cause and effect model comprises line temperature data, environment temperature data and a back door standard; controlling the environment temperature data, judging the line temperature data according to the electrical fire hazard cause and effect model, and obtaining the risk condition of the fire hazard; when the fire hazard is in a high-risk condition, carrying out alarm operation and/or emergency operation. Compared with the prior art, the electrical fire detection method based on the causal model is advantaged in that line temperature data and environment temperature data are combined with an algorithm of the causal model, accuracy of fire hazard detection is improved