Document: NUREG-0800
Document ID: 00049a4f-6345-4415-8ec0-0e63d8d04990
Document Type: srp
Title: NUREG-0800
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070482.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6
CFR Part: 
CFR Title: 

Content:
ety analysis report that the design pressure provides a margin of at least 20% above the maximum calculated pressure. Design certification applicants should also be reviewed against the 20% margin for containment design pressure. 43 The SCSB verifies that the containment is designed to withstand either hydrogen burning or initiation of the post-accident inerting system, if installed, during an accident that releases hydrogen from a 100% fuel clad metal-water reaction as described in specific criterion II.h of this SRP section.44 If a post-accident inerting system is utilized, the SCSB verifies the containment is designed to withstand inadvertent actuation of this system.45 Upon request of the EQBSPLB , the SCSB will (a) determine that the maximum 46 47 48 temperature transients calculated for postulated loss-of-coolant accidents and secondary system pipe ruptures have been considered in establishing the environmental qualification requirements for equipment and components required to mitigate the consequences of loss-of-coolant accidents and secondary system pipe ruptures, respectively; and (b) review the analytical methods and assumptions used in the thermal analysis, if thermal analysis is used to establish the qualification of instrumentation and components for use in superheated steam environments. The CONTEMPT-4 code is being developed to provide improved capability to analyze the long-term response of an ice condenser containment to a loss-of-coolant accident. When the CONTEMPT-4 code is available, the CSB will perform confirmatory analyses using this code.49 3. The TMD code is used to evaluate the transient pressure responses (internal) of the ice condenser containment subcompartments. The code is described in the proprietary report WCAP-8077(Ref. 22). The TMD code utilizes an ice condenser heat transfer 50 DRAFT Rev. 3 - April 1996 6.2.1.1.B-10 coefficient obtained from the 1974 full-scale section tests of the ice condenser. The TMD code also utilizes a