Document: NUREG-0800
Document ID: 2cb61281-91f4-400a-8eda-41e187e51d77
Document Type: srp
Title: AUXILIARY FEEDWATER SYSTEM (PWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070570007.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.9
CFR Part: 
CFR Title: 

Content:
d containment design pressure is not exceeded, operator action may be relied upon to isolate the depressurized steam generator. 11. The system possesses sufficient auxiliary feedwater flow capacity to achieve a cold shutdown. Upon request, the reviewer verifies whether the system meets the minimum flow requirements for decay heat removal. 10.4.9-3 Revision 3 - March 2007 12. The applicant's proposed technical specifications assure the continued reliability of the AFWS during plant operation (i.e., the limiting conditions for operation and the surveillance testing requirements specified are consistent with the standard technical specifications). 13. With the secondary reviewer, the primary reviewer verifies whether the system design meets the generic short- and long- term recommendations identified in NUREG-0611 and NUREG-0635. These recommendations will apply to all PWRs. 14. An AFWS reliability analysis is performed as required by Three Mile Island (TMI) Action Plan Item II.E.1.1 of NUREG-0737 and 10 CFR 50.34(f)(1)(ii) for applicants subject to 10 CFR 50.34(f). 15. The review verifies whether the design meets TMI Action Plan item II.E.1.2 of NUREG-0737 for the automatic and manual initiation of the AFWS and 10 CFR 50.62(c)(1) for automatic initiation of the AFWS in an anticipated transient without scram (ATWS). The review shall be coordinated with other responsible organizations as needed. 16. The reviewer verifies whether the system design permits operation at hot shutdown for at least four hours followed by cool down to the residual heat removal (RHR) cut-in temperature from the control room with only safety grade equipment, assuming the worst-case single active failure in accordance with Branch Technical Position (BTP) 5-4. 17. AFWS diversity and performance are reviewed for decay heat removal capability and station blackout capacity. 18. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC). For design certification (DC) and combined license (COL)