Document: NUREG-0800
Document ID: 81538e9c-cf5c-48b9-be32-fc15df183666
Document Type: srp
Title: -21
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1404/ML14043A231.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.3
CFR Part: 
CFR Title: 

Content:
of loadings resulting from (1) sustained loads, (2) specified plant/SOT, and (3) the OBE. Exemptions that have been permitted from regulatory requirements to use OBE and the acceptable alternative to use of OBE in the design of components, component supports, and core support structures are described in Subsection III.1 of this SRP section. (iii) Service Limit C. (1) Code Class 1, 2, and 3 components, component supports, and core support structures shall meet a service limit not greater than Level C when subjected to the appropriate combination of loadings resulting from (1) sustained loads, and (2) the DBPB. (2) The DBPB includes loads from the postulated pipe break, itself, and also any associated system transients or dynamic effects resulting from the postulated pipe break.