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:
of compliance with the NRC regulations. With respect to meeting the relevant requirements of GDC 4: 1. Postulated Pipe Rupture Locations Inside Containment. Acceptable criteria to identify postulated pipe rupture locations and configurations inside containment are specified in Branch Technical position (BTP) 3-4. 2. Postulated Pipe Rupture Locations Outside Containment. Acceptable criteria to identify postulated rupture locations and plant layout considerations for protection against postulated pipe ruptures outside containment are specified in BTP 3-4. 3.6.2-5 Draft Revision 3 – August 2015 3. Methods of Analysis. Detailed acceptance criteria covering pipe-whip dynamic analysis, including determination of the forcing functions of jet thrust and jet impingement, are included in Subsection III, “Review Procedures,” of this SRP section. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. Compliance with GDC 4 requires that nuclear power plant SSCs important to safety be designed to accommodate the effects of, and be compatible with, the environmental conditions associated with normal operation, maintenance, testing, and postulated accidents, including loss-of-coolant accidents. These SSCs shall be protected against certain dynamic effects, including pipe-whipping and discharging fluids. Such dynamic effects may be excluded from the design basis when analyses reviewed and approved by the Commission demonstreate that the probability of pipe rupture is shown to be extremely low under conditions consistent with the design basis for piping. 2. Meeting the requirements of GDC 4 provides assurance that safety-related SSCs and the RTNSS “B” SSCs will be protected from dynamic effects of pipe-whip and discharging fluids that could result from expected environmental conditions, thereby ensuring the ability of these SSCs to perform