Document: NUREG-0800
Document ID: a109d8e9-c6ff-4888-a1f5-d5a84f2ddb02
Document Type: srp
Title: SPENT FUEL POOL COOLING AND CLEANUP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350537.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.1.3
CFR Part: 
CFR Title: 

Content:
as stated in Section 9.1.2 of the SAR. d. For the maximum normal heat load with normal cooling systems in opera- tion, and assuming a single active failure, the temperature of the pool should be kept at or below 140OF and the liquid level in the pool should be maintained. For the abnormal maximum heat load (full 9.1.3-6 Rev. 1 - July 1981 core unload) the temperature of the pool water should be kept below boiling and the liquid level maintained with normal systems in opera- tion. A single active failure need not be considered for the abnormal case. The associated parameters for the decay heat load of the fuel assemblies, the temperature of the pool water, and the heatup time or rate of pool temperature rise for the stated storage conditions are reviewed on the basis of independent analyses or comparative analyses of pool conditions that have been previously found acceptable. e. The spent fuel pool and cooling systems have been designed so that in the event of failure of inlets', outlets, piping, or drains, the pool level will not be inadvertently drained below a point approxi- mately 10 feet above the top of the active fuel. Pipes or external lines extending into the pool that are equipped with siphon breakers, check valves, or other devices to prevent drainage are acceptable as a means of implementing this requirement. f. A seismic Category I makeup system and an appropriate backup method to add coolant to the spent fuel pool. are provided. The backup system need not be a permanently installed system, nor Category I, but must take water from a Category I source. Engineering judgment and compari- son with plants of similar design are used to determine that the makeup capacities and the time required to make 'associated hookups are con- sistent with heatup times or expected leakage from structural damage. g. Design provisions have been made that permit appropriate inservice inspection and functional testing of system components important to safety. It will be