Document: NUREG-0800
Document ID: 3263aa5f-b2bf-46fe-b625-e0ffd142404d
Document Type: srp
Title: TURBINE AREA VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070557.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.4
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Auxiliary Plant Systems Branch (ASB SPLB)1 Secondary - None Emergency Preparedness and Radiation Protection Branch (PERB)2 I. AREAS OF REVIEW The function of the turbine area ventilation system (TAVS) is to maintain ventilation in the turbine area, to permit personnel access, and to control the concentration of airborne radioactive material in the area during normal operation, during anticipated operational occurrences, and after any accident that results in a release of radioactive material.3 The ASB SPLB reviews the turbine area ventilation system (TAVS) from air intake to the 4 5 point of discharge to assure ensure conformance with the requirements of General Design 6 Criteria 2, 5, and 60. The review includes components such as air intakes, ducts, cooling air- conditioning units, blowers, isolation dampers, filters, and roof exhaust fans. The review of the 7 TAVS includes systems contained in the turbine building and their relationship, if any, to safety-related equipment areas. 1. The ASB SPLB reviews the functional performance requirements and the methods and 8 equipment provided for air treatment equipment 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-related system. In making this determination, systems provided for heating, 9 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 Standard Review Plan (SRP) section. 10 Based on this determination, any safety-related portions of the system are reviewed with respect to functional performance requirements during adverse environmental DRAFT Rev. 3 - April 1996 9.4.4-2 occurrences, during normal operation, anticipated operational