Document: NUREG-0800
Document ID: 010ad62f-cd7b-4f06-9f81-a781faf5701b
Document Type: srp
Title: ENGINEERED SAFETY FEATURE VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070560.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.5
CFR Part: 
CFR Title: 

Content:
he ESFVS being appropriately protected against dynamic effects and being designed to DRAFT Rev. 3 - April 1996 9.4.5-6 accommodate the effects of and to be compatible with the environmental conditions associated with normal operation, maintenance, testing, and postulated accidents. The 42 evaluation with respect to GDC 4 also includes evaluation of the adequacy of environmental support provided to structures, systems, and components important to safety located within areas served by the ESFVS.43 3. General Design Criterion 5 (GDC 5), as related to shared systems and components 44 important to safety. 4. General Design Criterion 17 (GDC 17), as related to assuring ensuring proper 45 46 functioning of the essential electric power system. Acceptance is based on meeting the guidance of item 2 under subsection A and item 1 under subsection C of the section on "Recommendations" of NUREG-CR/0660 (Ref. 10) relating to the protection of 47 essential electrical components from failure due to the accumulation of dust and particulate materials. 5. General Design Criterion 60 (GDC 60), as related to the system being capable to 48 suitably control release of gaseous radioactive effluents to the environment. Acceptance is based on meeting the guidance of Regulatory Guides 1.52 (position C.2) and 1.140 (positions C.1 and C.2), as related to design, testing, and maintenance criteria for atmosphere cleanup system, and normal ventilation exhaust system air filtration and adsorption units of light-water-cooled nuclear power plants, Position C.2 and Positions C.1 and C.2, respectively.49 6. 10 CFR 50.63, as related to necessary support systems providing sufficient capacity and capability for coping with a station blackout event. An analysis to determine capability for withstanding (if an acceptable alternate ac source is provided) or coping with a station blackout event is required. The analysis should address, as appropriate, the potential failures of equipment/systems during the event