Document: NUREG-0800
Document ID: 7b4fb774-803a-419c-bdec-3b31c351a3fe
Document Type: srp
Title: REACTOR COOLANT PRESSURE BOUNDARY LEAKAGE DETECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070610277.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.5
CFR Part: 
CFR Title: 

Content:
nable assurance that structural degradation, which may develop in pressure-retaining RCPB components and result in coolant leakage during service, will be detected promptly and that corrective actions will be made before such degradation becomes severe enough to jeopardize system safety or before the leakage increases to a level beyond the capability of the makeup system to replenish coolant loss. The staff concludes that the RCPB leakage detection system design is acceptable and meets GDC 2 with respect to withstanding the effects of natural phenomena without loss of capability to perform its safety functions, and GDC 30 with respect to the detection and identification of the location of sources of reactor coolant leakage. This conclusion is based on the following findings: 1. The applicant has met the applicable GDC 2 requirements by meeting RG 1.29, Positions C.1 and C.2. 2. The applicant has met the applicable GDC 30 requirements by meeting RG 1.45. For DC and COL reviews, the findings will also summarize the staff’s evaluation of requirements and restrictions (e.g., interface requirements and site parameters) and COL action items relevant to this SRP section. In addition, to the extent that the review is not discussed in other SER sections, the findings will summarize the staff's evaluation of the ITAAC, including design acceptance criteria, as applicable. V. IMPLEMENTATION The staff will use this SRP section in performing safety evaluations of DC applications and license applications submitted by applicants pursuant to 10 CFR Part 50 or 10 CFR Part 52. Except when the applicant proposes an acceptable alternative method for complying with specified portions of the Commission’s regulations, the staff will use the method described herein to evaluate conformance with Commission regulations. The provisions of this SRP section apply to reviews of applications submitted six months or more after the date of issuance of this SRP section, unless superseded by a