Document: NUREG-0800
Document ID: 6997f9d9-dedc-49d7-ac15-7615c1bd9713
Document Type: srp
Title: SPECTRUM OF ROD DROP ACCIDENTS (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550015.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.4.9
CFR Part: 
CFR Title: 

Content:
priate). 3. For the second acceptance criterion the number of fuel rods with clad failure is determined (for the SRP section 15.0.3 reviewer evaluating the radiological consequences of the control rod drop accident) by the following procedure: A. The reviewer determines whether the transient critical power ratio is computed by an acceptable technique (reviewed either previously or de novo during this review) for analyses using at-power conditions. 15.4.9-5 Revision 3 - March 2007 B. The reviewer must determine the number of failed rods for the radiological evaluation. The number of fuel rod failures for each of the failure mechanisms addressed in SRP Section 4.2 must be combined. C. The reviewer determines the acceptability of the time-dependent steaming and activity releases from each potential release path (condenser, etc.). Each scenario should be investigated in combination and separately for the most severe release path. 4. For ABWR reviews, the reviewer compares the applicant's safety analysis report to staff assumptions for computing rod drop accident doses and to the radiological consequences. Thus, the reviewer confirms that the applicant's design would produce similar results or notes significant differences. The review also must evaluate the applicant’s ability to satisfy the coolability criteria (See SRP Section 4.2). 5. For review of a DC application, the reviewer should follow the above procedures to verify that the design, including requirements and restrictions (e.g., interface requirements and site parameters), set forth in the final safety analysis report (FSAR) meets the acceptance criteria. DCs have referred to the FSAR as the design control document (DCD). The reviewer should also consider the appropriateness of identified COL action items. The reviewer may identify additional COL action items; however, to ensure these COL action items are addressed during a COL application, they should be added to the DC FSAR. For review of a COL application,