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:
liability program should also be provided to attain and maintain the target reliability levels of emergency onsite ac sources with respect to station blackout considerations. Regulatory Guides 1.9 and 1.155, and SRP Section 8.4 (proposed) describe guidance acceptable to the staff for meeting the requirements of 10 CFR 50.63 related to addressing emergency onsite ac source reliability for station blackout. Meeting the requirements of 10 CFR 50.63 provides assurance that nuclear power plants will have adequate onsite ac source reliability to maintain risks associated with station blackout within acceptable levels.84 III. REVIEW PROCEDURES The primary objective in the review of the ac power system is to determine that this system satisfies the acceptance criteria stated in subsection II and will perform its design functions during plant normal operation, anticipated operational occurrences, and accident conditions. In the CP review, the descriptive information — including the design bases and their relation to the acceptance criteria, preliminary analyses, electrical single-line diagrams, functional logic diagrams, preliminary functional piping and instrumentation diagrams (P&IDs), and preliminary physical arrangement drawings — are examined to determine that there is reasonable assurance that the final design will meet these objectives. At the OL stage, these objectives are verified during the review of final electrical schematics, functional P&IDs, and physical arrangement drawings and are confirmed during a visit to the site. To ensure that acceptance criteria stated in subsection II are satisfied, the review is performed as detailed below. The primary reviewer will coordinate this review with the other branch areas of review as stated in subsection I. The primary reviewer obtains and uses such input as required to ensure that this review procedure is complete. 1. System Redundancy Requirements General Design Criteria 33, 34, 35, 38, 41, and 44 set forth