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:
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 in unfiltered releases of radioactive contaminants affect the ARAVS.12 2. The ASBSPLB also reviews safety-related portions of the ARAVS with respect to the 13 following: a. The capability to direct ventilation air from areas of low radioactivity to areas of progressively higher radioactivity. b. The capability to detect the need for isolation and to isolate safety-related portions of the system in the event of failures or malfunctions, and the capability of the isolated system to function under such conditions. 14 c. The capability to actuate components not normally operating that are required to operate during accident conditions, and to provide necessary isolation.15 3. The ASBSPLB also performs the following reviews as part of its primary review 16 responsibility under the Standard Review Plan (SRP) sections indicated: 17 18 a. Review of flood protection is performed under SRP Section 3.4.1. b. Review of the protection against internally generated missiles is performed under SRP Section 3.5.1.1. c. Review of the structures, systems, and components to be protected against externally generated missiles is performed under SRP Section 3.5.2. d. Review of high- and moderate-energy pipe breaks is performed under SRP Section 3.6.1. e. Review of the environmental qualification of mechanical and electrical equipment is performed under SRP Section 3.11.19 f. Review of the effectiveness of the ARAVS filters to remove airborne contaminants prior to discharge to the environment is performed under SRP Section 6.5.1.20 g. The review of fire protection is performed under SRP Section 9.5.1.21 h. The Effluent Treatment Systems Branch (ETSB) evaluates Review of the system functional performance to assure ensure that the system meets acceptable limits 9.4.3-3 DRAFT Rev. 3 - April 1996