Document: NUREG-0800
Document ID: b296e705-242e-4773-bbbb-37e1b24e45fe
Document Type: srp
Title: STANDBY LIQUID CONTROL SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350556.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.5
CFR Part: 
CFR Title: 

Content:
um system requirements are met. 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 standby liquid control system (SLCS) includes storage tanks, pumps, valves, and piping to the point where the system connects to the reactor coolant boundary. The SLCS, which is provided for BWRs only, provides reactivity control in the event the control rods cannot be inserted. The basis for acceptance in the staff review of the standby liquid control system is the conformance of the applicant's design and design criteria to the Commission's regulations as set forth in the General Design Criteria and to the positions of applicable regulatory guides, staff technical positions, and industry standards. The staff concludes that the design of the standby liquid control system is acceptable and conforms to the requirements of General Design Criteria 2, 26, and 27 with respect to seismic design, reactivity control system redundancy, and reactivity control system capability. This conclusion is based on the following: 1. The applicant has met the requirements of General Design Criterion 2 with respect to seismic design by meeting regulatory position C-i of Regulatory Guide 1.29. 2. The applicant has met the requirements of General Design Criterion 26 with respect to the redundancy of reactivity control systems by pro- viding two independent reactivity control systems of different design principles and with respect to the capability of holding the reactor core subcritical under cold conditions. 9.3.5-5 Rev. 2 - July 1981 3. The applicant has met the requirements of General Design Criterion 27 with respect to the combined capabilities of the reactivity control systems to reliably control reactivity changes under postulated accident conditions since the SLCS has the capability to shut down the reactor with all control rods withdrawn,