Document: NUREG-0800
Document ID: ac4cde5a-7464-48b8-9067-860c672cbb68
Document Type: srp
Title: STATION BLACKOUT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550061.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.4
CFR Part: 
CFR Title: 

Content:
or the AP 1000 design. The review should determine that the selected minimum coping duration conforms to the guidance provided in Section C.3.1 of RG 1.155. 2. SBO Coping Capability. The review should determine that the capability to achieve and maintain safe shutdown (non-design-basis accident (DBA)) during an SBO conforms to the guidance provided in Section C.3.2 of RG 1.155 and that appropriate procedures and training have been developed to implement this capability. 3. AAC Power Sources. Use of an AAC power source that is consistent with the guidance in RG 1.155 and capable of powering at least one complete set of normal shutdown loads is the preferred approach for complying with the requirements of 10 CFR 50.63. The review conducted herein should determine that the information submitted and commitments made regarding the AAC power source provide reasonable assurance of the licensee’s conformance with the rule. To do this, the staff will verify that the design of the AAC power source conforms to the guidelines in Section C.3.3.5 of RG 1.155. As described in SECY-90-016 (Ref. 23), new advanced light-water reactor (ALWR) applications, other than plant designs that use passive safety systems (such as the AP1000), should have a spare, full-capacity, AAC power source that meets the guidelines in Section 3.3.5 of RG 1.155 (Ref. 23). Passive plant designs need not include an AAC power source if it can be demonstrated that all safety-related functions can be performed without reliance on ac power for 72 hours after the initiating event and the applicant has implemented a regulatory treatment of nonsafety system (RTNSS) process that conforms to Chapter C.IV.10 of Draft Guide (DG)-1145 (Ref. 28). For combined license (COL) applicants that reference a certified design, the certification will have addressed the implementation of the RTNSS process. 4. Procedures and Training. The review should determine that procedures and training conform to the guidance in Sections