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:
ssurization of the reactor coolant pressure boundary under the most severe transients and limits the reactor pressure during normal operational transients. Overpressurization protection is provided by ______ safety valves. These valves discharge to the pressurizer quench tank through a common header from the pressurizer. The safety and relief valves in the primary, in conjunction with the steam generator safety and relief valves in the secondary, and the reactor protection system, will protect the primary system against overpressure in the event of a complete loss of heat sink. The peak primary system pressure following the worst transient is limited to the ASME Code allowable (110% of the design pressure) with no credit taken for nonsafety-grade relief systems. The ______ plant was assumed to be operating at design conditions (% of rated power) and the reactor is shut down by a ______ scram. The calculated pressure at the bottom of the vessel is ______ kPag ( psig) , a value within the code allowable of______ kPag ( psig) (110% of 32 33 vessel design pressure). Overpressure protection during low temperature operation (defined in Branch Technical Position RSB 5-2) of the plant is provided by________ . The applicant has met GDC 15 and 31 and Appendix G since they haveby implementeding the guidelines of BTP RSB 5-2. In addition, the applicant has incorporated into their design the recommendations of Task Action Plan items II.D.1 34 and II.D.3 of NUREG-0718 and as described in NUREG-0737 (and has met the related requirements of 10 CFR 50.34(f)(2)(x) and 10 CFR 50.34(f)(2)(xi), if applicable). 35 DRAFT Rev. 3 - April 1996 5.2.2-8 For design certification reviews, the findings will also summarize, to the extent that the review is not discussed in other safety evaluation report sections, the staff's evaluation of inspections, tests, analyses, and acceptance criteria (ITAAC), including design acceptance criteria (DAC), site interface requirements, and combined license