Document: NUREG-0800
Document ID: 667d1b37-702c-4e8d-93da-886dbb7a679f
Document Type: srp
Title: d.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070304.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.2.30
CFR Part: 
CFR Title: 

Content:
els, and other process equipment is are considered 47 in this SRP section. The applicant's risk assessment of external and internal flooding submitted as required by 10 CFR 52.47(a)(1)(v) for a design certification review and by 10 CFR 50.34(f)(1)(i) will be reviewed to identify potentially significant vulnerabilities to flooding, including an analysis of flooding during shutdown conditions. A failure 48 modes and effects analysis may be performed to determine that the flooding consequences resulting from failures of such liquid-carrying systems close to essential equipment will not preclude required functions of safety systems. 4. A review of the SAR to ascertain if safety-related systems or components are capable of normal function while completely or partially flooded. DRAFT Rev. 3 - April 1996 3.4.1-6 5. A review of plant arrangement and layout drawings to determine if safety-related equipment or components are located within individual compartments or cubicles which act as positive barriers against possible means of flooding, and if barriers or other means of physical separation are utilized between safety-related trains. 6. A review ofReview plant structure design drawings to determine if any safety-related 49 structures have been provided with a safety-related permanent dewatering system for control of groundwater seepage. The dewatering system should be designed to safety grade requirements. In addition, see SRP Section 2.4.13. 7. A review of provisions for drainage from roofs to determine that the design will accommodate maximum precipitation events in accordance with Regulatory Guide 1.102 and Generic Letter (GL) 89-22.50 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