Energia i regulacje · 11/29/2001
Risk-Informed Treatment of Structures, Systems and Components
The Nuclear Regulatory Commission (NRC) is making available the draft wording of a possible amendment of its regulations. The proposal would add 10 CFR 50.69, "Risk-Informed Treatment of Structures, Systems and Components." The proposal would permit power reactor licensees and applicants to implement an alternative regulatory framework with respect to certain treatment requirements currently imposed beyond practices for commercial grade equipment to add assurance of capability of structures, systems and components (SSCs) to perform their intended functions. Under this framework, licensees, using a risk-informed process for categorizing SSC according to their safety and risk significance, could remove SSCs of low safety significance from the scope of certain identified treatment requirements. The availability of the draft wording is intended to inform stakeholders of the current status of the NRC's activities to adopt 10 CFR 50.69 and to provide stakeholders the opportunity to comment on the draft changes. The NRC has also provided additional ("[ ]") information within the body of the draft rule language which is bracketed ("[ ]") to facilitate understanding of the NRC's intent on c