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:
/16 C (60/60 F) , or an API gravity at 16 C (60 F) , within limits established 49 50 in accordance with Positions 2.a and 2.b of Regulatory Guide 1.137; 4) A tested impurity level of less than 2 mg of insolubles per 100 ml. The fuel oil testing program should specify that analysis shall be completed within 7 days after obtaining the sample but may be performed after the addition of new fuel oil; and 5) The other properties shall be tested as specified in Regulatory Guide 1.137 and associated standards. The fuel oil test program shall specify that analysis shall be completed within 14 days after obtaining the sample but may be performed after the addition of new fuel oil.51 6. The descriptive information and drawings in the SAR are reviewed to verify that: a. Each storage tank is equipped with an outside fill and vent line, located and protected so as to minimize the chance of damage, from vehicles, tornado, tornado missiles, and floods. The fill and vent point should be located higher than the PMF flood level. Each tank is also provided with a stick gauge connection for determining fuel level in the tank. b. The minimum onsite inventory of fuel oil for each redundant diesel generator system is sufficient to enable the diesel generators to power required engineered safety features for a period of seven days following any design basis accident and loss of offsite power. 9.5.4-9 DRAFT Rev. 3 - April 1996 c. The physical location of the day tank associated with each diesel-generator set is located at an elevation to assure a slight positive pressure at the engine-driven fuel oil pump(s). Where this requirement is contrary to manufacturers' recommendation, justification and a detailed system description shall be provided in the SAR. Additionally, the justification for locating the day tank other than stated above shall assure that the diesel-generator unit can start automatically and attain the required voltage and frequency within acceptable limits and time. If a