Document: NUREG-0800
Document ID: 82c03523-2d2b-49d4-a06b-4def71350079
Document Type: srp
Title: EMERGENCY DIESEL ENGINE FUEL OIL STORAGE AND TRANSFER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070680388.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.4
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of diesel generator support systems Secondary - Organization responsible for the review of fuel oil quality and testing I. AREAS OF REVIEW Nuclear power plants are required to have redundant onsite emergency power sources of sufficient capacity to power safety-related equipment. In almost all cases, the onsite power sources include diesel engine-driven generator sets. Standard review plan (SRP) Sections 9.5.4 through 9.5.8 cover the review of various essential elements of the emergency diesel engine sets. This SRP section covers the fuel oil storage and transfer system for these diesel engines up to the engine housing. The specific areas of review are as follow: The review of the emergency diesel engine fuel oil storage and transfer system (EDEFSS) assures compliance with the requirements of General Design Criteria (GDCs) 2, 4, 5, and 17 by all piping up to the connection to the engine interface,1 the fuel oil storage tanks, the fuel oil transfer pumps, day tanks, and the tank storage vaults. In addition, the review covers the quality and the quantity of fuel oil stored onsite and the availability and procurement of additional fuel from offsite sources. 9.5.4-2 Revision 3 - March 2007 The specific areas of review are as follows: 1. The EDEFSS is reviewed to verify whether: A. Each emergency diesel engine has an independent and reliable fuel oil storage and transfer system. B. The system has been designed, fabricated, erected, and tested to acceptable quality standards. C. The system has boundary divisions between safety-related and nonsafety-related sections. D. Sections of the system important to safety are housed within seismic Category I structures. E. Failures of any non-seismic Category I structure, system, and component (SSC) will not adversely affect any EDEFSS safety function. F. The consequences of a single active failure in a fuel oil system will not lead to a loss of more than one