Document: NUREG-0800
Document ID: 16afcc26-09c8-4627-8906-8c56ffe8434b
Document Type: srp
Title: LOSS OF NORMAL FEEDWATER FLOW
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070683.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.2.7
CFR Part: 
CFR Title: 

Content:
ethods are reviewed by RSBSRXB to ascertain whether the mathematical modeling and computer codes have been previously reviewed and accepted by the staff. If a referenced analytical method has not been previously reviewed, the reviewer requests initiation of a generic evaluation of the new analytical model by RSBSRXB.or the CPB as appropriate.6 The predicted results of the transient are reviewed to assureensure that the consequences meet 7 the acceptance criteria given in subsection II, below. The predicted results of the transient are reviewed to ascertain that the values of pertinent system parameters are within expected ranges for the type and class of reactor under review. The RSB will coordinate other branch evaluations that interface with the overall review of the transient analysis as follows: The ICSB reviews the instrumentation and controls aspects of the sequence described in the SAR to evaluate whether the reactor and plant protection and safeguards controls and instrumentation systems will function as assumed in the safety analysis with regard to automatic actuation, remote sensing, indication, control, and interlocks with auxiliary or shared systems. The ICSB evaluates the design of the auxiliary feedwater system to determine that the requirements and guidance of II.E.1.2 of NUREG-0737 are met. The RSB reviewer consults with the ICSB reviewer to assure that the appropriate delay time for auxiliary feedwater initiation is assumed in the analysis. The reliability of the auxiliary feedwater system is reviewed by the Auxiliary Systems Branch (ASB) in accordance with SRP Section 10.4 and in accordance with the requirements and guidance of II.E.1.1 of NUREG-0737 and II.K.2(1) (item 1 of Table C.2) in NUREG-0660. The RSB reviewer consults with the ASB reviewer to assure that the operational assumptions for the auxiliary feedwater system in the analysis is appropriate as part of its primary review responsibility for SRP Sections 7.2 through 7.5. The Core