Document: NUREG-0800
Document ID: ef1386f3-1e51-490d-9646-d1018f39b2c8
Document Type: srp
Title: TURBINE AREA VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350572.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.4
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Auxiliary Systems Branch (ASB) Secondary - None I. AREAS OF REVIEW The ASB reviews the turbine area ventilation system (TAVS) from air intake to the point of discharge to assure conformance with the requirements of General Design Criteria 2, 5, and 60. The review includes components such as air intakes, ducts, cooling units, blowers, isolation dampers, and roof exhaust fans. The review of the TAVS includes systems contained in the turbine building and their relationship, if any, to safety-related equipment areas. 1. The ASB reviews the functional performance requirements and the methods and equipment provided for air treatment for the TAVS to determine whether the ventilation system or portions of the system have been designed or need to be designed as a safety system. In making this determination, systems provided for heating, ventilating, and air conditioning of the turbine area, designed to normal industrial standards, and those systems that provide for control and filtration of small quantities of radioactive gas leakage in the turbine area during normal plant operation, are not considered safety. related for the purpose of this SRP section. Based on this determination, any safety-related portions of the system are reviewed with respect to functional performance requirements during adverse environmental occurrences, during normal opera- tion, and subsequent to postulated accidents, including the loss of offsite power. The ASB reviews the safety-related portions of the system to assure that: a. A single active failure cannot result in loss of the system functional performance capability. b. Failures of nonseismic Category I equipment or components will not result in an unacceptable release of radioactive contaminants. Rev. 2 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate