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:
tions to ensure that these systems are not vulnerable to common mode failures. For each case, the design will be acceptable if minimum system requirements are met. 4. Some SLCS (e.g., ABWR) designs no longer use squib-activated (explosive) injection valves and instead incorporate motor-operated storage tank discharge valves. Because of the importance of valve reliability for the SLCS storage tank discharge valves, the reviewer verifies that the motor-operated discharge valves, where provided, will be covered by adequate reliability assurance requirements under a Reliability Assurance Program (RAP). 5. Newer SLCS (e.g., ESBWR) designs use accumulators instead of positive displacement pumps. Because of the importance of accumulator reliability, the reviewer verifies that the accumulators will be covered by adequate reliability assurance requirements under a RAP. 6. For review of a DC application, the reviewer should follow the above procedures to verify that the design, including requirements and restrictions (e.g., interface requirements and site parameters), set forth in the final safety analysis report (FSAR) meets the acceptance criteria. DCs have referred to the FSAR as the design control document (DCD). The reviewer should also consider the appropriateness of identified COL action items. The reviewer may identify additional COL action items; however, to ensure these COL action items are addressed during a COL application, they should be added to the DC FSAR. For review of a COL application, the scope of the review is dependent on whether the COL applicant references a DC, an early site permit (ESP) or other NRC approvals (e.g., manufacturing license, site suitability report or topical report). 7. For review of both DC and COL applications, SRP Section 14.3 should be followed for the review of ITAAC. The review of ITAAC cannot be completed until after the completion of this section. IV. EVALUATION FINDINGS The reviewer verifies that the applicant has provided