Document: NUREG-0800
Document ID: bc7e4c14-0eaa-4591-a506-23d7893f8a00
Document Type: srp
Title: as establishing acceptable guidance for meeting the requirements of this criterion.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070498.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
us time condition that could occur given single random failures of circuit overload protective devices. This meets the positions of 152 Regulatory Guide 1.63. 7. The applicant has met the requirements of 10 CFR 50.63, "Loss of All Alternating Current Power," with respect to appropriate use of the redundancy and reliability of emergency onsite ac power sources as factors in determining an appropriate station blackout duration for which the plant should be capable of withstanding or coping with, and recovering from. The applicant has committed to suitable target reliability levels for emergency onsite ac power sources and a program that provides reasonable assurance that reliability targets will be achieved and maintained. The acceptable program is based on meeting the relevant positions of Regulatory Guides 1.9 and 1.155. The applicant’s compliance with the requirements of 10 CFR 50.63 is discussed in further detail in Sections 8.2 and 8.4 of the safety evaluation report (SER).153 For design certification reviews, the findings will also summarize, to the extent that the review is not discussed in other safety evaluation report sections, the staff’s evaluation of inspections, tests, analyses, and acceptance criteria (ITAAC), including design acceptance criteria (DAC), site interface requirements, and combined license action items that are relevant to this SRP section.154 V. IMPLEMENTATION The following is intended to provide guidance to applicants and licensees regarding the NRC staff's plans for using this SRP section. This SRP section will be used by the staff when performing safety evaluations of license applications submitted by applicants pursuant to 10 CFR 50 or 10 CFR 52. Except in those 155 cases in which the applicant proposes an acceptable alternative method for complying with specified portions of the Commission's regulations, the method described herein will be used by the staff in its evaluation of conformance with Commission regulations. The