Preliminary Study on Evaluation Criterion of CPR1000 Residual Heat Removal Pump Operability upon Seismic Condition

The operability of nuclear safety class pump upon seismic condition influences the safety of nuclear power plants directly. The function of pump upon seismic condition should be qualified. The CPR1000 motor-driven residual heat removal pump is used to act as subject investigated in this paper. According to the result of the failure mode and effect analysis（FMEA）, the weakness of pump upon seismic condition which affects the operability is selected. Based on the function and operating requirement of the assembly, the evaluation criterion of pump operability upon seismic condition is provided in the paper.