(A) management and accommodation "two in one". The first floor of the fire scene is used to sell electrical appliances, and the electricity load is heavy, so there is a phenomenon of connecting wires privately; On the second floor is the living room with kitchen and three bedrooms.

(2) Poor evacuation conditions. There is only one indoor evacuation staircase connecting the first floor and the second floor, and the outer window on the west side of the second floor is blocked by billboards, so there are many things piled up indoors, occupying the evacuation passage.

(3) people's ability to escape and save themselves is not strong. After the fire broke out, the trapped people failed to report to the police in time and fled blindly from the second floor to the first floor without taking protective measures, resulting in inhalation of toxic and harmful gases and casualties.