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:
er post-accident conditions. If the secondary contain- ment leakage rate is in excess of 100% of the volume per day, CSB advises AEB in order that they may perform a special exfiltration analysis. CSB reviews the preoperational and periodic inservice testing programs to assure that testing will be done to verify the extent of exfiltration. CSB reviews the proposed secondary containment system testing program and the surveillance requirements to assure that tests will be periodically conducted to verify that the prescribed negative pressure can be uniformly maintained throughout the secondary containment. CSB also reviews the testing program and surveillance requirements to assure that tests will be periodically con- ducted to verify the secondary containment design inleakage rate and to verify the analysis of the depressurization of the secondary containment. LGB reviews the proposed technical specifications to assure that adequate administrative control will be exercised over the secondary containment open- ings, such as personnel access doors and equipment hatches. CSB determines from the descriptive information in the SAR that all doors and hatches are provided with position indicators having readout and alarm capability in the main control room. The CSB will ascertain that normally open doors were con- sidered in the analyses of the functional capability of the secondary contain- ment system. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and that his evaluation supports conclusions of the following type, to be included in the staff's safety evaluation report: The scope of review of the functional design of the secondary containment- system for the (Plant name) has included plan and elevation drawings, system drawings, and descriptive information. This system is provided to control the atmosphere within the secondary containment and contiguous 6.2.3-6 Rev. 2 - July 1981 areas. The review has included the applicant's