Document: NUREG-0800
Document ID: f8502678-c803-47fd-90e8-98197a427d04
Document Type: srp
Title: TURBINE AREA VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550040.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.4
CFR Part: 
CFR Title: 

Content:
rts of the TAVS be essentially independent to ensure that an accident in one unit of a multiple-unit facility will not propagate to other units. Therefore, the TAVS for each unit should be designed to accommodate the loads 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 GDC 5 requirements adds assurance that a failure or accident in one unit will not affect additional units of a multiple-unit site. 3. GDC 60 requires provisions to 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. GDC 60 requirements apply to the design of the TAVS because its function is to control the quantities of radioactive materials in gaseous effluents released to the environment from normal ventilation systems. RGs 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. 9.4.4-6 Revision 3 - March 2007 Meeting the GDC 60 requirements adds 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. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. The