ICONE11-36497 RISK-INFORMING 10 CFR PART 50 SPECIAL TREATMENT REQUIREMENTS : A COST-BENEFIT ASSESSMENT

概要

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To enable the risk-informed regulation efforts, the United States Nuclear Regulatory Commission (NRC) has proposed a new section to the Code of Federal Regulations, Title 10 CFR Part 50.69. Concurrent in time, the ASME developed and approved a risk-informed methodology for Repair & Replacement. The proposed 50.69 rule permits a risk-informed, integrated decision-making process to re-classify structures, systems and components (SSCs) into high and low safety significant categories. A relaxed set of treatment requirements may then be applied to the low safety significant, safety-related SSCs. The Westinghouse Owners Group has performed a demonstration program of this new process for both Wolf Creek and Surry-1 nuclear power plants. As part of the program, a cost-benefit assessment was performed to determine the feasibility of broad implementation across all nuclear power plants. The positive results of the cost-benefit assessment show potential annual savings of nearly $1.5 Million per unit. This value far exceeds those savings attained in other risk-informed programs to date.
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