Document: NUREG-0800
Document ID: 12f45e44-74bc-4a6b-933a-2fd6bc43c6dd
Document Type: srp
Title: deals with the fuel oil storage and transfer system for these diesel engines up to the engine
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070569.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.4
CFR Part: 
CFR Title: 

Content:
housing. The PSBSPLB review of the emergency diesel engine fuel oil storage and transfer system 3 (EDEFSS) is performed to assure conformance with the requirements of General Design Criteria 2, 4, 5, and 17 and includes all piping up to the connection to the engine interface, the fuel oil (1) storage tanks, the fuel oil transfer pumps, day tanks, and the tank storage vaults. In addition, the review includes the quality and the quantity of fuel oil stored onsite, and the availability and procurement of additional fuel from offsite sources. DRAFT Rev. 3 - April 1996 9.5.4-2 1. The diesel engine fuel oil storage and transfer system is reviewed to determine that: a. The system meets appropriate seismic design requirements. b. The system will be designed, fabricated, erected, and tested to acceptable quality standards. c. Sufficient space has been provided to permit inspection, cleaning, maintenance, and repair of the system. d. A minimum of seven days' supply of fuel oil, for each redundant diesel generator system, has been provided onsite to meet the engineered safety feature load requirements following a loss of offsite power and a design basis accident. e. Adequate and acceptable sources of fuel oil are available, including the means of transporting and recharging the fuel storage tank, following a design basis accident (DBA) so as to enable each redundant diesel generator system to supply uninterrupted emergency power for as long as may be required. f. Seismic Category I structures housing the system protect it from natural phenomena and external missiles. 2. The PSBSPLB verifies that suitable precautions will be taken to prevent deleterious 4 material from degrading the stored fuel and that periodic tests will be performed to verify that fuel degradation does not proceed to the point where engine performance is affected. 3. For those plants that designate an emergency diesel engine as an alternate ac power source, the SPLB will determine the adequacy of the EDEFSS