Document: NUREG-0800
Document ID: 5cdeed4a-6cd5-4840-90c0-5159fbf2c9f0
Document Type: srp
Title: CHILLED WATER
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1409/ML14093A350.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.7
CFR Part: 
CFR Title: 

Content:
ts have been incorporated into the plant design; and, (3) provide information necessary to demonstrate compliance with any technically relevant portions of the Three Mile Island (TMI) requirements set forth in 10 CFR 50.34(f), except paragraphs (f)(1)(xii), (f)(2)(ix), and (f)(3)(v). These cross-cutting review areas should be addressed by the reviewer for each technical subsection and relevant conclusions documented in the corresponding Safety Evaluation Report (SER) section. 3. The safety analysis report (SAR) information on the design bases and design criteria and the system description section are reviewed for whether the equipment and the minimum system heat transfer and flow requirements for normal plant operations are identified. The system piping and instrumentation diagrams (P&IDs) show which system components: A. Provide essential cooling for components, ventilation systems, or auxiliary equipment. RTNSS B: applies, since RTNSS B SSCs are considered risk-significant for functions in the post-72 hour period. 9.2.7-17 Draft Revision 0 – July 2014 RTNSS C: may apply for defense-in-depth functions in order to meet NRC safety goal guidelines. B. Cool RTNSS components. RTNSS B: applies, since RTNSS B SSCs are considered risk-significant for function the post-72 hour period. RTNSS C: applies for defense-in-depth functions in order to meet NRC safety goal guidelines. 4. The system performance requirements section of the SAR is reviewed for whether it describes allowable component operational degradation (e.g., pump leakage) and the procedures followed to detect and correct these conditions when degradation becomes excessive. RTNSS B and C: apply. 5. The primary review organization, using the results of failure modes and effects analyses, determines whether the system can sustain the loss of any active component and, on the basis of previously approved systems or independent calculations, whether the system meets minimum requirements (cooling load and flow) for