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:
hat required electric power will be provided for all facility operating modes, including transients and design basis accidents so that the safety functions required in these criteria may be performed, even in the event of any single failure.82 7. Compliance with GDC 50 requires that the reactor containment structure, including access openings, penetrations, and containment heat removal systems, be designed so that the containment structure and its internal compartments can accommodate, without exceeding the design leakage rate and with sufficient margin, the calculated pressure and temperature conditions resulting from any LOCA. Containment electric penetrations must therefore be designed to accommodate, without exceeding their design leakage rate, the calculated pressure and temperature conditions resulting from a LOCA. This criterion, as it applies to this SRP section, relates specifically to ensuring the integrity of containment electrical penetrations in the event of design basis LOCA conditions. SRP Section 8.3.1 cites Regulatory Guide 1.63 as guidance acceptable to the staff for meeting the requirements of this criterion. Meeting the requirements of GDC 50 provides assurance that a LOCA will not cause a containment structure, including its electrical penetrations, to exceed the design leakage rate, thus limiting the consequences of a LOCA.83 8. Compliance with 10 CFR 50.63 requires that each light-water-cooled nuclear power plant be able to withstand and recover from a station blackout of a specified duration. DRAFT Rev. 3 - April 1996 8.3.1-14 As specified in 10 CFR 50.63, the reliability of emergency onsite ac power sources must be used as a factor in determining the duration for which the plant must be capable of coping with a station blackout event. A reliability 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