Document: NRC Regulatory Guide
Document ID: 666e1303-0170-4974-a7d6-af27eb586524
Document Type: regulatory_guide
Title: Risk-Informed, Performance-Based Fire Protection for Existing Light-Water Nuclear Power Plants (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2104/ML21048A448.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.205
CFR Part: 
CFR Title: 

Content:
afety to minimize the probability and effect of fires and explosions. Related Guidance • RG 1.174, “An Approach for Using Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis” (Ref. 3), describes an approach that is acceptable to the staff for developing risk-informed applications for a licensing basis change that considers engineering issues and applies risk insights. It provides general guidance concerning analysis of the risk associated with proposed changes in plant design and operation. • RG 1.200, “An Approach for Determining the Technical Adequacy of Probabilistic Risk Assessment Results for Risk-Informed Activities” (Ref. 4), describes one acceptable approach for determining whether the technical adequacy of a probabilistic risk assessment (PRA) is sufficient to provide confidence in the results, such that the PRA can be used in regulatory decision-making for light-water reactors. • RG 1.189, “Fire Protection for Nuclear Power Plants” (Ref. 5), describes an approach that is acceptable to staff for licensees to meet the regulatory requirements of 10 CFR 50.48(a) and (b), and 10 CFR Part 50, Appendix R, “Fire Protection Program for Nuclear Power Facilities Operating Prior to January 1, 1979.” These regulations state the requirements governing a nuclear power plant’s fire protection program (FPP). • RG 1.106, “Thermal Overload Protection for Electric Motors on Motor-Operated Valves” (Ref. 6), describes a method acceptable to the staff for complying with the regulatory criteria with regard to the application of thermal overload protection devices that are integral with the motor starter for electric motors on motor-operated valves. This method would ensure that the thermal overload protection devices will not needlessly prevent the motor from performing its safety- related function. • NUREG-0800, SRP Section 9.5.1.2, “Risk-Informed, Performance-Based Fire Protection Program”