Document: NUREG-0800
Document ID: c53cf2ef-5eb4-4449-bed4-17a9eff508e3
Document Type: srp
Title: SECONDARY CONTAINMENT FUNCTIONAL DESIGN
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600406.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.3
CFR Part: 
CFR Title: 

Content:
ary containment. Any inadequacies in the applicant's direct leakage assumptions in the radiological analysis are noted. At the operating license stage, reviews technical specifications of surveillance requirements for leakage testing of the secondary containment bypass leakage paths are performed. 6. Analyses of the capability of the secondary containment system to resist exfiltration under post-accident conditions are reviewed. If the secondary containment leakage rate exceeds 100 percent of the volume per day, a special exfiltration analysis is performed. The preoperational and periodic inservice testing programs are reviewed for testing to verify the extent of exfiltration. 7. Review of the proposed secondary containment system testing program and the surveillance requirements is for assurance that periodic tests will confirm maintenance of the assumed negative pressure throughout the secondary containment. Review of the testing program and surveillance requirements is for assurance that periodic tests will verify the secondary containment design in-leakage rate and the analysis of the depressurization of the secondary containment. 8. Review of proposed technical specifications assures exercise of adequate administrative control over secondary containment openings like personnel access doors and equipment hatches. Review of the descriptive information in the SAR determines whether all doors and hatches have position indicators with readout and alarm capability in the main control room and ascertains whether normally open doors were considered in the analyses of the functional capability of the secondary containment system. 9. 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