Document: NUREG-0800
Document ID: c1d42ca1-cc58-40db-812c-918554bfa81b
Document Type: srp
Title: FEEDWATER SYSTEM PIPE BREAKS INSIDE AND OUTSIDE CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070704.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.2.8
CFR Part: 
CFR Title: 

Content:
NBR remains above the 95/95 DNBR limit for PWRs based on acceptable correlations. b. SRP Section 4.2, for an acceptable fuel damage model. c. SRP Section 10.4.9, AFWS to confirm that the flow provided is acceptable for controlling the transient following the feedwater line break. d. SRP Sections for Chapters 5, 6, 7, 8, and 10 to evaluate the effect of single active failures of systems and components that may alter the course of the accident, to the extent considered necessary, using the system review procedures described in the standard review plan sections.20 2. In addition the RSBSRXB will coordinate other branches' evaluations that interface with the overall review of feedwater system pipe breaks as follows: a. The Auxiliary Systems Branch (ASB)Plant Systems Branch (SPLB) reviews the 21 auxiliary feedwater system AFWS to verify that it can function following a feedwater line break, given a single active component failure and with either onsite or offsite power as part of its primary review responsibility for SRP Section 10.4.9. The SPLB evaluates the ability of the AFWS to supply adequate feedwater flow to the unaffected steam generators during the accident and subsequent shutdown. SPLB also reviews, under SRP Section 10.4.9, how the 22 applicant has met the requirements of 10 CFR 50.34(f)(1)(ii). The SPLB also 23 reviews the integrity of the reactor coolant pump seals as part of its primary review responsibility for SRP Section 9.2.2.24 15.2.8-5 DRAFT Rev. 2 - April 1996 b. The Mechanical Engineering Branch (MEB)(EMEB) evaluates potential 25 water-hammer effects on safety valve integrity as part of its primary review responsibility for SRP Section 3.9 series. c. The Containment Systems and Severe Accidents Branch (CSB) (SCSB) reviews 26 the auxiliary feedwater systemAFWS to confirm that the flow provided is acceptable for controlling the transient following a feedwater line break. SCSB reviews the methodology which evaluates the response of the containment to