[en] Electrical equipment room is one of the important contents of nuclear power plant fire risk assessment. In this paper, the risk analysis of fire between electrical equipment in typical NPPs is carried out. Event tree method is used to deduce and analyze the fire scenarios and identify the hazards of fire scenarios. Finally, a fire risk assessment model is established on the basis of internal event PSA model of nuclear power plants, Fire risk quantification. Fire interpretation of the results obtained six fire scenarios, analysis of the various fire scenarios on the nuclear power plant events and system equipment. Risk quantification results show that the frequency of core damage caused by fires between electrical equipment is 1.42E-9/(reactor · year). (authors)