Method capable of checking fire extinguishing effectiveness of oil-immersed transformer fire extinguishing system

The invention provides a method capable of checking fire extinguishing effectiveness of an oil-immersed transformer fire extinguishing system, and relates to the field of oil-immersed transformer fireprotection. An oil-immersed transformer fire model capable of fully and truly reflecting the fire development law of an oil-immersed transformer is designed; an oil-immersed transformer fire model isadopted to simulate the real fire of the oil-immersed transformer, a to-be-detected fire extinguishing system starts fire extinguishing on the pre-burnt oil-immersed transformer fire model, and the effectiveness of the oil-immersed transformer fire extinguishing system is judged according to the fire extinguishing result. The oil-immersed transformer fire model constructed by the invention is ignited and pre-combusted according to the sequence of the real fire situation of the oil-immersed transformer; the fire hazard development rule of the oil-immersed transformer is fully embodied, the influence of various paramete