Document: NUREG-0800
Document ID: e3249d77-0411-430a-9793-06aea8669075
Document Type: srp
Title: FISSION PRODUCT CONTROL SYSTEMS AND STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070474.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.5.3
CFR Part: 
CFR Title: 

Content:
l 1996 Meeting the requirements imposed by GDC 43 provides assurance that offsite radiation doses resulting from postulated accidents will be within the guidelines specified in 10 CFR Part 100.67 III. REVIEW PROCEDURES The reviewer selects and emphasizes aspects of the areas covered by this SRP section as appropriate for a particular case. The judgment of which areas need to be given attention and 68 emphasis in the review is based on an inspection of the material presented to see whether it is similar to that recently reviewed on other plants and whether items of special safety significance are involved. The purpose of the review of containment systems is to define a model to be used in DBA (specifically, the LOCA) dose calculations, to check that the values of certain key parameters 69 are within established limits, to confirm the correctness of important modeling assumptions, and to verify the functional capability of the primary and/or secondary containment ventilation systems. Therefore, the reviewer covers various areas (containment design, positive pressure periods, filters, etc.) to establish parameters and assumptions for dose calculations utilizing digital computer codes.70 Where a review area is not the primary responsibility of the AEBSPLB, appropriate acceptance 71 criteria in applicable SRP sections are used by the responsible branch and the AEBSPLB is 72 informed where inadequacies are identified so that appropriate modifications of the model can be made. These areas include: • primary containment leakage rate, bypass leakage, and testing of these (CSBSCSB ) 73 • secondary containment vacuum maintenance systems (normal operation) (CSBSCSB ) 74 • secondary containment pressure response (postaccident) (CSBSCSB ) 75 • containment isolation (CSBSCSB ) 76 • structural design of containments (SEB) and systems (MEBEMEB ) 77 • engineered safety feature filter systems (ETSBPERB ) 78 1. Primary Containment Design a. The primary containment design is