Document: NUREG-0800
Document ID: 52c595ba-bbc6-4bf7-8b9c-e72d77d3a95b
Document Type: srp
Title: AUXILIARY AND RADWASTE AREA VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070543.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.3
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Auxiliary Plant Systems Branch (ASBSPLB)1 Secondary - None Emergency Preparedness and Radiation Protection Branch (PERB)2 I. AREAS OF REVIEW The function of the auxiliary and radwaste area ventilation system (ARAVS) is to maintain ventilation in the auxiliary and radwaste equipment areas, to permit personnel access, and to control the concentration of airborne radioactive material in the areas during normal operation, during anticipated operational occurrences, and after postulated accidents.3 The ASBSPLB reviews the auxiliary and radwaste area ventilation system (ARAVS) from air 4 5 intake to the point of discharge where the system connects to the gaseous cleanup and treatment system or station vents 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, air conditioning units, filters, blowers, isolation dampers, and roof exhaust fans. The review of 7 8 the ARAVS covers the radwaste areas and controlled access nonradioactive areas and their relationship to safety-related areas in the auxiliary building. 1. The ASBSPLB reviews the functional performance requirements and the air treatment 9 equipment for the ARAVS to determine whether the ventilation system or portions of the system have been designed or need to be designed as a safety-related system. Based on this determination, the safety-related part portions of the system is are reviewed with 10 respect to functional performance requirements during normal operation, during adverse environmental occurrences, and during and subsequent to postulated accidents, including DRAFT Rev. 3 - April 1996 9.4.3-2 the loss of offsite power. The ASBSPLB reviews safety-related portions of the system 11 to assure ensure 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