Document: NUREG-0800
Document ID: d0743544-9964-4f40-acba-386523f70c7f
Document Type: srp
Title: SPENT FUEL POOL AREA VENTILATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550038.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.4.2
CFR Part: 
CFR Title: 

Content:
the system, structures, and fan rooms (cubicles) are reviewed to determine that the degree of protection is adequate. A statement to the effect that the system is located in a tornado-, missile-, and flood-protected seismic Category I structure or that components of the system will be located in individual cubicles or rooms that will withstand the effects of both flooding and missiles, is acceptable. C. The total system has the capability to detect and control leakage of radioactive contamination from the system. The design is acceptable if it meets the following conditions: i. The P&IDs show capability to isolate nonessential SFPAVS portions by two automatically-actuated dampers in series. ii. The SFPAVS has provisions to filter radioactive contaminants from the spent fuel area by automatically isolating the normal ventilation system and actuating the emergency exhaust system before the first contaminated airborne particles and gases reach the normal ventilation exhaust ducts. 9.4.2-8 Revision 3 - March 2007 D. Components and subsystems necessary for preventing the release of radioactive contaminants can function as required in the event of loss of offsite power. The system design will be acceptable if the SFPAVS meets minimum system requirements as stated in the SAR, assuming a failure of a single active component, within the system itself or in the auxiliary electric power source which supplies the system. The SAR is reviewed to determine that for each SFPAVS component or subsystem affected by the loss of offsite power, the resulting system flow capacity will not cause the loss of preferred direction of air flow from areas of low potential radioactivity to areas of higher potential radioactivity. Statements in the SAR and the results of failure modes and effects analyses are considered in verifying that the system meets these requirements. This will be an acceptable verification of system functional reliability. 4. The descriptive information, P&IDs, SFPAVS