Document: NUREG-0800
Document ID: 6f03df27-1f8c-428c-8e39-9465d1235fa1
Document Type: srp
Title: EMERGENCY DIESEL ENGINE LUBRICATION SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0704/ML070460354.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.5.7
CFR Part: 
CFR Title: 

Content:
nonseismic Category I structures that house, support, or are close to the EDELS, will not preclude functioning of the system. Chapters 2 and 3 of the SAR describe related site features and provide the general structural arrangement and layout drawings and a tabulation of seismic design classifications for the structures and systems. Statements in the SAR to the effect that the above design requirements are met are acceptable. B. The essential portions of the system are protected from the effects of floods, hurricanes, tornadoes, and internally- and externally-generated missiles. 5. The reviewer verifies whether the EDELS is protected from the effects of high-and moderate-energy line breaks. System description in the SAR is reviewed for high-or moderate-energy piping systems close to the EDELS or that protection from effects of failure will be provided. SAR Chapter 3 presents the means of such protection, and procedures for reviewing the information presented are in the corresponding SRP sections. 6. The descriptive information, P&IDs, related system drawings, and system analyses in the SAR are reviewed to assure that essential EDELS portions will function following design basis accidents, assuming a concurrent single active component failure. The reviewer evaluates the results of failure modes and effects analyses presented in the SAR to assure functioning of required components, traces the availability of these components on system drawings, and checks that minimum system requirements are met for each degraded situation over required time spans. For each case, the design is acceptable if it meets minimum system requirements. IV. EVALUATION FINDINGS The reviewer verifies that the applicant has provided sufficient information and that the review and calculations (if applicable) support conclusions of the following type to be included in the staff's safety evaluation report. The reviewer also states the bases for those conclusions. The EDELS includes the pumps, heat