Document: NUREG-0800
Document ID: 67fadb40-c4ed-44df-bd57-56afb6891209
Document Type: srp
Title: PLANT SYSTEMS - INSPECTIONS, TESTS, ANALYSES, AND ACCEPTANCE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550025.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.7
CFR Part: 
CFR Title: 

Content:
SIs, NRC generic correspondence, PRA, insights from the standard design's safety and severe accident analyses, and operating experience. Tier 1 should be reviewed for consistency with the initial test program described in DCD Tier 2 Chapter 14.2. The reviewer should also use the review checklists provided in Appendix C to SRP Section 14.3 as an aid for establishing consistency and comprehensiveness in his review of the systems. If applicable, the reviewer should utilize regulatory guidance from the Commission for selected policy and technical issues related to particular design. Examples of these are contained in SECY-93-087, "Policy, Technical, and Licensing Issues Pertaining to Evolutionary and Advanced Light-Water Reactor Designs." The SRM related to this is dated July 21, 1993. 2. Tier 1 should be reviewed for treatment of design information proportional to the safety significance of the SSC for that system. Many items may be judged to be important to 14.3.7-4 March 2007 safety, and thus should be included in Tier 1. The following issues are identified to ensure comprehensive and consistent treatment in Tier 1 based on the safety significance of the system being reviewed: (1) System purpose and functions (2) Location of system (3) Key design features of the system (4) Seismic and ASME code classifications (5) System operation in various modes (6) Controls, alarms, and displays (7) Logic (8) Interlocks (9) Class 1E electrical power sources and divisions (10) Equipment to be qualified for harsh environments (11) Interface requirements (12) Numeric performance values (13) Accuracy and quality of figures 3. Standard ITAAC entries should be utilized to verify selected issues, where appropriate. The reviewer should ensure consistent application and treatment of the standard ITAAC entries for basic configuration ITAAC, net positive suction head, and physical separation for appropriate systems in Tier 1. In particular, the general provision for environmental