Document: NRC Regulatory Guide
Document ID: 22ccfd5e-c5d8-4615-a02c-32369aa9f533
Document Type: regulatory_guide
Title: Acceptability of Probabilistic Risk Assessment Results for Risk-Informed Activities (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1930/ML19308B636.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.200
CFR Part: 
CFR Title: 

Content:
IDENTIFY the fire areas … and CONFIRM … terminal end locations. Cat II: IDENTIFY … and CONFIRM … terminal end locations. Cat I and II: IDENTIFY the physical analysis units, consistent with the plant partitioning analysis, through which each cable associated with a credited Fire PRA function passes and CONFIRM that the information includes treatment of cable terminal end locations. CS-B1 -------------------- No objection -------------------- CS-C1 thru CS-C4 -------------------- No objection -------------------- 4-2.4 – QLS 4-2.4 -------------------- No objection -------------------- Table 4-2.4-1 -------------------- No objection -------------------- Tables 4-2.4-2(a) thru 4-2.4-3(b) QLS-A1 thru QLS-A4 -------------------- No objection -------------------- QLS-B1 thru QLS-B3 -------------------- No objection -------------------- 4-2.5 – PRM 4-2.5 -------------------- No objection -------------------- Table 4-2.5-1 -------------------- No objection -------------------- Tables 4-2.5-2(a) thru 4-2.5-4(c) PRM-A1 thru PRM-A4 -------------------- No objection -------------------- DG-1362, Appendix A, Page A-27 Table A-4. Staff Position on ASME/ANS RA-Sa-2009 Part 4, Technical and Peer Review Requirements for At-Power Internal Fire Index No Issue Position Resolution PRM-B1 thru PRM-B15 -------------------- No objection -------------------- PRM-C1 -------------------- No objection -------------------- 4-2.6 – FSS 4-2.6 -------------------- No objection -------------------- Table 4-2.6-1 -------------------- No objection -------------------- Tables 4-2.6-2(a) thru 4-2.6-9(h) FSS-A1, FSS- A3, FSS-A6 -------------------- No objection -------------------- FSS-A2 Need to clarify that spurious operation is a failure mode. Clarification …For each target set, SPECIFY …including specification of the failure modes, including spurious operation. FSS-A4 Use of language, “one or more,” is problematic, since it does not specify a minimum requirement. Clarification