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:
ria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. The procedures are used during the construction permit review to determine that the design criteria and bases and the preliminary design, as set forth in the preliminary SAR, meet the acceptance criteria of subsection II of this SRP section. For the review of an operating license (OL) application, the procedures verify that the initial design criteria and bases have been implemented appropriately in the final design as set forth in the final SAR. These procedures should be followed for the review of a DC or a COL application. The procedures for OL or COL reviews include a determination that the proposed technical specifications agree with the requirements for testing, minimum performance, and surveillance developed by the staff. The primary reviewer coordinates this review with other reviewers for their particular areas of responsibility. The primary reviewer uses such inputs as required to complete this review procedure. As a result of various TAVS designs proposed by applicants, there will be variations in system requirements. For purposes of this SRP section, a typical system is assumed to have fully redundant subsystems, each with an identical essential (safety-related) portion. For deviations from this typical arrangement, the reviewer adjusts the review procedures below; however, the system design must comply with the relevant NRC requirements identified in subsection II. 1. The SAR is reviewed to verify that the system description and piping and instrumentation diagrams (P&IDs) show the TAVS equipment used for normal and emergency operations, and the ambient temperature limits for the areas serviced. The system performance requirements are reviewed to determine that it describes allowable component operational degradation (e.g., loss of function, damper leakage) and