Document: NUREG-0800
Document ID: 9697248b-d015-42be-8808-2202db24977a
Document Type: srp
Title: STANDBY LIQUID CONTROL SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070680186.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.5
CFR Part: 
CFR Title: 

Content:
injected into the high-pressure core spray discharge piping and into the RPV via the spray sparger. For example in ABWR designs, the solution is injected into the high-pressure core flooder injection line, and in the ESBWR design, the solution is directly injected into the RPV through a nozzle located above core midplane, then directed to a downcomer located outside the core shroud that is connected to a header connected to two downcomers, each of which has four injection nozzles at different elevations below core midplane. 1. The SAR is reviewed to determine that the system process diagram and piping and instrumentation diagrams (P&IDs) delineate the SLCS equipment. The reviewer, using the results of failure modes and effects analyses, comparisons with previously approved systems, or independent calculations, as appropriate, determines that the system can sustain the loss of any active component and meet the minimum system requirements for safe shutdown and accident mitigation. The system process diagram, P&IDs, layout drawings, and component descriptions and characteristics are reviewed to determine the following: 9.3.5-8 Revision 3 - March 2007 A. The SLCS is classified as Quality Group B and seismic Category I. The reviewer verifies that the component and system descriptions in the SAR include the above classifications and that the P&IDs should indicate any points of change in piping quality group classification. The organization responsible for reviews of seismic and geotechnical issues performs the review for seismic design, and the organization responsible for the review of mechanical engineering issues performs the review for seismic and quality classification, as indicated in Subsection I of this SRP section. B. The reviewer verifies that design provisions have been made that permit appropriate inservice inspection and functional testing of the system. It will be acceptable if the SAR information delineates a testing and inspection program and if the