The U.S. Nuclear Regulatory Commission’s Fire Risk Research Program: Status and Results

The U.S. Nuclear Regulatory Commission (NRC) fire risk research program has several tasks aimed at improving the nuclear power plant fire risk assessment (FRA) state of the art. Current results to date include an evaluation of available test data relevant to the estimation of fire-induced spurious actuation probabilities, FRA methodology issues raised by a review of past fire events, and a framework for using test data in the quantification of fire model uncertainties.