Document: NUREG-0800
Document ID: 90f64116-09ca-459d-8277-ecf8fc888100
Document Type: srp
Title: EMERGENCY DIESEL ENGINE LUBRICATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070572.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.7
CFR Part: 
CFR Title: 

Content:
responsibility of the applicant referencing the certified design. The DC applicant's submittal should provide a conceptual design and interface requirements for that portion of the design outside the scope of the DC as required by 10 CFR 52.47(a)(1)(vi-ix).52 IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and his review supports conclusions of the following type, to be included in the staff's safety evaluation report: The emergency diesel engine lubrication system (EDELS) includes the pumps, heat exchangers, valves, piping, makeup piping, and the points of connection or interfaces with other systems. The scope of review of the emergency diesel engine lubrication system for the plant included layout drawings, flow diagrams, piping and instrumentation diagrams, and descriptive information for the system and supporting systems that are essential to its operation. The essential portions of the EDELS that are necessary for the safe shutdown of the reactor or necessary to mitigate the consequences of an accident are designed to seismic Category I and Quality Group C. The staff concludes that the design of the emergency diesel engine lubrication system is acceptable and meets the requirements of GDC 2, 4, 5, and 17. This conclusion is based on the following: 1. The applicant has met the requirements of GDC 2, "Design Bases for Protection Against Natural Phenomena," with respect to the ability of structures housing the EDELS and the system itself to withstand the effects of natural phenomena such as earthquakes, tornadoes, hurricanes, and floods, and GDC 4, "Environmental and MissileDynamic Effects Design Bases" with respect to structures housing 53 the system and the system itself being capable of withstanding the effects of externally and internally generated missiles, pipe whip, and jet impingement forces associated with pipe breaks. The EDELS is housed in a seismic Category I structure which provides protection from the