Document: NUREG-0800
Document ID: f8502678-c803-47fd-90e8-98197a427d04
Document Type: srp
Title: TURBINE AREA VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550040.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.4
CFR Part: 
CFR Title: 

Content:
environmental occurrences, normal operation, anticipated operational occurrences, and subsequent to postulated accidents, including the loss of offsite power. Safety-related portions of the system are reviewed to ensure: A. A single, active failure can not result in loss of system functional performance capability. B. Failures of nonseismic Category I equipment or components will not affect the TAVS. 2. Safety-related portions of the TAVS are also reviewed with respect to the following: A. The capability to direct ventilation air from areas of low radioactivity to areas of higher radioactivity. B. The capability to detect the need for isolation and to isolate portions of the system in the event of failures or malfunctions, and the capability of the system to function under such conditions. C. The capability to actuate components not normally operating that are required to operate during accident conditions and to provide necessary isolation. 3. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC). For design certification (DC) and combined license (COL) reviews, the staff reviews the applicant's proposed ITAAC associated with the structures, systems, and components (SSCs) related to this SRP section in accordance with SRP Section 14.3, "Inspections, Tests, Analyses, and Acceptance Criteria." The staff recognizes that the review of ITAAC cannot be completed until after the rest of this portion of the application has been reviewed against acceptance criteria contained in this SRP section. Furthermore, the staff reviews the ITAAC to ensure that all SSCs in this area of review are identified and addressed as appropriate in accordance with SRP Section 14.3. 4. COL Action Items and Certification Requirements and Restrictions. For a DC application, the review will also address COL action items and requirements and restrictions (e.g., interface requirements and site parameters). For a COL application referencing a DC, a COL applicant must address COL action items