Document: NUREG-0800
Document ID: 16650158-402d-4897-850a-bc9e2cce7648
Document Type: srp
Title: INADVERTENT OPENING OF A PWR PRESSURIZER PRESSURE RELIEF
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070726.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.6.1
CFR Part: 
CFR Title: 

Content:
as they relate to determining the auxiliary feedwater performance requirements for this event, if the applicant's evaluation of this transient indicate that the system will be required to function. b. II.K.3.1. If, as a result of the evaluations performed as required by II.K.3.2, or if the applicant has in the design an automatic power-operated relief valve isolation system, the reviewer confirms it has been properly accounted for in the analyses. c. II.K.3.5. The reviewer evaluates the assumption made regarding reactor coolant pump trip to assure ensure that they are consistent and conservatively modeled 49 with respect to the final pump trip criteria which results from resolution of Task Action Plan item II.K.3.5 that are contained in Generic Letters 85-12, 86-05, and 86-06 (PWRs only).50 d. II.K.3.16 (10 CFR 50.34(f)(1)(vi)). For boiling water reactor designs, the 51 reviewer confirms that the results of the applicant's feasibility study, and, if required, system modifications to reduce the number of challenges to and the number of failures of relief valves, have been properly included in the evaluation of the event. e. II.K.3.25 (10 CFR 50.34(f)(1)(iii)) and II.K.3.40. If, as a result of the transient, 52 or as a result of loss of AC power, containment isolation is indicated to occur, the reactor coolant pump component cooling water may be lost. The reviewer evaluates the applicant's submittal to determine that the reactor coolant pump seal integrity is not lost. If it cannot be established that seal integrity is assured ensured, the reviewer assures verifies that the evaluation of this event correctly 53 54 accounts for seal failure. If the SAR states that the inadvertent pressure relief valve opening transient is not as limiting as some other similar transient, the reviewer evaluates the justification presented by the applicant. If a quantitative analysis of the transient is presented in the SAR, the RSBSRXB reviewer, with 55 the aid of the ICSBHICB reviewer,