Document: NUREG-0800
Document ID: 28a7b60c-ac66-4869-9189-83f494a5059d
Document Type: srp
Title: NUREG-0800
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350042.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9
CFR Part: 
CFR Title: 

Content:
The reviewer will select and emphasize material from this SRP section as may be appropriate for a particular case. 1. The SAR is reviewed to establish that the EDELS is a dedicated system and that the description and related diagrams clearly delineate system opera- tion, including the means provided for indicating and monitoring oil levels, temperatures, and pressures required for continuous operation of the system. The reviewer verifies the following: 9.5.7-4 Rev. 2 - July 1981 a. The SEB reviews the seismic design bases and the MEB reviews the qual- ity and seismic classification as indicated in subsection I of this SRP section. The PSB assures that essential portions of the EDELS including the isolation valves separating essential and nonessential portions are classified Quality Group C and seismic Category I. Components and system descriptions in the SAR that identify mechani- cal and performance characteristics are reviewed to verify that the above seismic and quality classifications have been included and that the P&IDs indicate any points of change at the systems and/or systems. components interfaces. b. Failure of a piping interconnection, as shown on the system piping and instrumentation diagrams (P&IDs) between subsystems will not cause total degradation of the lube oil system function. The results of failure modes and effects analyses will be used in this determination. c. The system layout drawings are examined to ascertain that sufficient space has been provided to permit inspection of components. d. The system has been designed to preclude the entry of deleterious material into the system due to operator error or extreme natural phenomena during recharging or normal operation. The system is acceptable if it is shown in the SAR that the system is locked closed, or if entry is administratively controlled. e. The design contains an independent circulation loop to maintain the temperature of the crankcase oil above a minimum value during the standby mode.