Document: NUREG-0800
Document ID: 3571c656-1693-466b-a77d-6c05b7eed41e
Document Type: srp
Title: REACTOR SYSTEMS - INSPECTIONS, TESTS, ANALYSES, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660623.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.4
CFR Part: 
CFR Title: 

Content:
her example in which passive designs would be difficult to verify prior to fuel loading as related to normal operations involves natural circulation. Passive designs, compared to previous designs, can include elongated-reactor-core designs to create the pressure differential for establishing natural circulation. Evidence of prior testing and analysis providing conclusive results may have to suffice for suitable acceptance criteria for ITAAC purposes. 5. Appendix D of SRP 14.3 lists acceptable “Standard ITAAC Entries” in the standard three-column format for ITAAC entries for configuration of systems, hydrostatic tests, net positive suction head for pumps, divisional power supply, etc., that should be contained in the overall set of ITAAC entries, as appropriate. RG 1.206, “Combined License Applications for Nuclear Power Plants (LWR Edition),” contains guidance for developing ITAAC assuming that a COL applicant does not reference a certified design and/or an early site permit. Guidance in Section III for COLs referencing a certified design notes that the ITAAC contained in the certified design must apply to those portions of the facility design that have been approved. Appendix C.II.2-A provides “general ITAAC development guidance” on fluid, I&C, and electrical systems. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. Application of 10 CFR 52.47(b)(1), as it relates to ITAAC (for design certification) provides reasonable assurance that the SSCs in this area of review will operate in accordance with the design certification, the provisions of the Atomic Engery Act, and NRC’s regulations. 14.3.4-8 March 2007 2. Application of 10 CFR 52.80(a), as it relates to ITAAC (for combined licenses) provides reasonable assurance that the SSCs in this area of review have been constructed and will be operated in conformity with the