Document: NUREG-0800
Document ID: b085cd1c-2d74-4547-b757-d8513d0cb353
Document Type: srp
Title: OVERPRESSURE PROTECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070419.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.2
CFR Part: 
CFR Title: 

Content:
PORVs, PORV block valves, and the LTOP system (PWRs only). 23 d. Verify compliance with TMI action plan item II.K.3.3 of NUREG 0737 regarding reporting of safety relief valve challenges and failures. Generic Letters 82-16 and 83-02 (References 12 and 13) provide descriptions of this NUREG 0737 item and includes guidance regarding appropriate Technical Specifications to address the reporting requirements of II.K.3.3. Section 5.9.1 of Standard Technical Specifications (References 7 to 11), regarding Monthly Operating Reports, provides related guidance on an appropriate technical specification to address this issue for those applicants implementing Improved Technical Specifications.24 For standard design certification reviews under 10 CFR Part 52, the procedures above should be followed, as modified by the procedures in SRP Section 14.3 (proposed), to verify that the design set forth in the standard safety analysis report, including inspections, tests, analysis, and acceptance criteria (ITAAC), site interface requirements and combined license action items, meet the acceptance criteria given in subsection II. SRP Section 14.3 (proposed) contains procedures for the review of certified design material (CDM) for the standard design, including the site parameters, interface criteria, and ITAAC.25 IV. EVALUATION FINDINGS The reviewer verifies that the SAR contains sufficient information and the review supports the following kinds of statements and conclusions, which should be included in the staff's safety evaluation report: The staff concludes that the overpressurization protection system is acceptable and meets the relevant requirements of GDC 15 and 31 and Appendix G to 10 CFR Part 50. This conclusion is based on the following: 1. BWRs The overpressure protection system prevents overpressurization of the reactor coolant pressure boundary under the most severe transients and limits the reactor pressure during normal operational transients. Overpressure protection is