Document: NRC Regulatory Guide
Document ID: 8a2332d3-66ca-40af-84e1-507db8b26559
Document Type: regulatory_guide
Title: TRIAL - Acceptability of Probabilistic Risk Assessment Results for Non-Light Water Reactor Risk-Informed Activities
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2123/ML21235A008.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.247
CFR Part: 
CFR Title: 

Content:
ind Fragility Analysis those SSCs and associated failure modes identified in the plant response analysis, including those that may not be in the base plant model but that enclose or protect other SSCs from high wind effects. RG 1.247, Appendix A, Page A-55 Table A-13. Staff Position on ASME/ANS RA-S-1.4-2021, Technical Requirements for High Winds PRA Index No. Issue Position Resolution important contributors to risk. WFR-A2 through WFR-A9 ------------------------ No objection ---------------------------------- Table 4.3.12.2-3 WFR-B1 through WFR-B7 ------------------------ No objection ---------------------------------- Table 4.3.12.2-4 WFR-C1 through WFR-C4 ------------------------ No objection ---------------------------------- Table 4.3.12.2-5 WFR-D1 through WFR-D6 ------------------------ No objection ---------------------------------- Table 4.3.12.2-6 WFR-E1 through WFR-E12 ------------------------ No objection ---------------------------------- Table 4.3.12.2-7 WFR-F1 through WFR-F2 ------------------------ No objection ---------------------------------- Table 4.3.12.2-8 WFR-G1 through WFR-G2 ------------------- No objection ---------------------------------- Table 4.3.12.2-9 WFR-H1 through WFR-H4 ------------------------ No objection ---------------------------------- Table 4.3.12.2-10 WFR-I1 Documentation related to SSC failure mechanisms, the treatment of atmospheric pressure changes and missiles, structural interaction effects, wind-driven rain effects, and when Clarification f.) the identified SSC failure mechanisms and associated failure modes; g.) the treatment of wind pressure and atmospheric pressure change effects, wind -generated missile effects, structural interaction effects and wind -driven rain RG 1.247, Appendix A, Page A-56 Table A-13. Staff Position on ASME/ANS RA-S-1.4-2021, Technical Requirements for High Winds PRA Index No. Issue Position Resolution possible, the conduct of and observations from walkdowns is necessary to assess whether all