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:
ng units. With regard to the ARAVS, GDC 5 requires that the component parts of the ARAVS be essentially independent in order to ensure that an accident in one unit of a multiple-unit facility will not propagate to other units. Therefore the ARAVS for each unit should be designed to accommodate the load resulting from accident conditions. At the same time, the operating environment of equipment associated with unaffected units must be maintained within specified limits. Meeting the requirements of GDC 5 provides assurance that a failure or accident in one unit will not affect other units of a multiple-unit site.49 3. Compliance with GDC 60 requires that provisions be included in the nuclear power unit design to ensure suitable controls on the release of radioactive materials in gaseous effluents during normal reactor operation, including anticipated operational occurrences. DRAFT Rev. 3 - April 1996 9.4.3-6 The requirements of GDC 60 are applicable to the design of the ARAVS because its function is to control the quantities of radioactive materials in gaseous effluents released to the environment from normal ventilation systems. Regulatory Guides 1.140 and 1.52 offer design, testing, and maintenance criteria acceptable to the staff for air filtration and adsorption units of normal ventilation exhaust systems and for engineered safety feature atmospheric cleanup systems in light-water-cooled nuclear power plants. Meeting the requirements of GDC 60 provides assurance that release of radioactive materials entrained in gaseous effluents will not exceed the limits specified in 10 CFR Part 20 for normal operation and anticipated operational occurrences.50 III. REVIEW PROCEDURES The procedures below are used during the construction permit (CP) or standard design certification review to determine that the design criteria and bases and the preliminary design, 51 as set forth in the preliminary safety analysis reportSAR, meet the acceptance criteria given in 52 subsection II