Document: NUREG-0800
Document ID: 7e0d3b3e-62c3-4492-ba89-6cebb4e82234
Document Type: srp
Title: SECONDARY CONTAINMENT FUNCTIONAL DESIGN
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340701.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.3
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Containment Systems Branch (CSB) Secondary - None I. AREAS OF REVIEW The CSB reviews the information in the applicant's safety analysis report (SAR) con- cerning the functional capability of the secondary containment system. The second- ary containment system includes the outer containment structure of dual containment plants and the associated systems provided to mitigate the radiological consequences of postulated accidents. The secondary containment structure and supporting systems are provided to collect and process radioactive material that may leak from the pri- mary containment following an accident. The supporting systems maintain a negative pressure within the secondary containment and process this leakage. Plant areas and systems contiguous to the secondary containment which also collect and process radio- active material that may leak from the primary containment following an accident are reviewed by the CSB in the same manner as the secondary containment. The CSB review of the functional capability of the secondary containment system of dual containment designs includes the following points: 1. Analyses of the pressure and temperature response of the secondary containment to a loss-of-coolant accident within the primary containment. 2. Analyses of the effect of openings in the secondary containment on the capabil- ity of the depressurization and filtration system to accomplish its design objective of establishing a negative pressure in a prescribed time. 3. Analyses of the pressure and temperature response of the annular region between the primary and secondary containment to a high energy line rupture within the secondary containment. Rev. 2 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to the public as