Document: NUREG-0800
Document ID: 63f62189-691f-402d-9ac9-41fb60ec2261
Document Type: srp
Title: DETERMINATION OF RUPTURE LOCATIONS AND DYNAMIC EFFECTS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1423/ML14230A035.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.6.2
CFR Part: 
CFR Title: 

Content:
ASSOCIATED WITH THE POSTULATED RUPTURE OF PIPING REVIEW RESPONSIBILITIES Primary.- Organization responsible for Mechanical Engineering reviews Secondary.-- None I. AREAS OF REVIEW Title 10 of the Code of Federal Regulations (10 CFR) Part 50, “Domestic Licensing of Production and Utilization Facilities,” Appendix A, “General Design Criteria for Nuclear Power Plants,” General Design Criterion (GDC) 4, “Environmental and Dynamic Effects Design Bases,” requires, in part, that structures, systems, and components (SSCs) important to safety be designed to accommodate the effects of postulated accidents, including appropriate protection against the dynamic effects of postulated pipe ruptures. Safety-related SSCs and regulatory treatment of nonsafety system (RTNSS) Category B (RTNSS “B”) SSCs , as defined and reviewed in Standard Review Plan (SRP) Section 19.3, “Regulatory Treatment of Nonsafety Systems for Passive Advanced Light Water Reactors,” and discussed in Review Procedure 2 below, are reviewed in this SRP section. Nonsafety-related 3.6.2-2 Draft Revision 3 – August 2015 SSCs that are not RTNSS “B” are not required to have protection against postulated pipe ruptures under the scope of this SRP section. Information concerning break and crack location criteria and methods of analysis for evaluating the dynamic effects associated with postulated breaks and cracks in high-and moderate-energy fluid system piping, including “field run” piping inside and outside of containment, should be provided in the applicant's safety analysis report (SAR). This information is reviewed by the staff in accordance with this SRP section to confirm that there is appropriate protection of SSCs components relied upon for safe reactor shutdown or to mitigate the consequences of a postulated pipe rupture. The specific areas of review are as follows: 1. The criteria used to define break and crack locations and configurations. 2. The analytical methods used to define