Document: NUREG-0800
Document ID: a650b8f2-b0fa-4f0f-bc8f-55bb3f6ec603
Document Type: srp
Title: INADVERTENT OPENING OF A PWR PRESSURIZER PRESSURE RELIEF VALVE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0708/ML070820094.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.6.1
CFR Part: 
CFR Title: 

Content:
y the staff. The input parameters for this model were reviewed and found suitably conservative. The results showed specified acceptable fuel design limits maintained by a minimum DNBR2 not below and a maximum pressure within the reactor coolant and main steam systems not in excess of 110 percent of the design pressures. The staff concludes that the analysis or evaluation of this AOO is acceptable and meets the relevant requirements of GDCs 10, 13, 15, and 26 and the applicable paragraphs of 10 CFR 50.34(f)(1). This conclusion is based on the following findings: 1. The applicant meets the requirements of GDCs 10 and 26 by demonstrating that resultant fuel integrity is maintained because the specified acceptable fuel design limits were not exceeded for the event. 2. The applicant meets GDC 13 requirements by demonstrating that all credited instrumentation was available, and that actuations of protection systems, automatic and manual, occurred at values of monitored parameters that were within the instruments’ prescribed operating ranges. 3. The applicant meets GDC 15 requirements by demonstrating that the reactor coolant pressure boundary limits were not exceeded by the event and that resultant leakage is within acceptable limits. This requirement is met because the maximum pressure within the reactor coolant and main steam systems did not exceed 110 percent of the design pressure. 15.6.1-10 Revision 2 - March 2007 4. The applicant meets GDC 26 requirements for the capability of the reactivity control system to control reactivity adequately during the event with appropriate margin for stuck rods because the specified acceptable fuel design limits were not exceeded. 5. The staff has determined that, in meeting GDCs 10, 13, 15, and 26, the analysis used a mathematical model previously reviewed and accepted by the staff. The input parameters for this model were reviewed and found suitably conservative. In addition, we have determined further that the positions of RG