Test method for air inleakage of main control room in nuclear power plants

As an important factor of the integrality of main control room in nuclear power plants, the air inleakage of main control room can only be tested rather than be calculated theoretically. Presents the test method and theoretical analysis of air inleakage of main control room and concludes the most suitable field test method and the characteristics of each test method. The results show that the concentration decay test method and constant injection test method in tracer gas test method can be applied to the whole air inleakage field test and the component test method can contribute to finding the air inleakage point.