Document: NUREG-0800
Document ID: e89cc26c-d19a-42b8-818a-fb598c05ccee
Document Type: srp
Title: PLANT DESIGN FOR PROTECTION AGAINST POSTULATED PIPING FAILURES IN FLUID
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340548.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.6.1
CFR Part: 
CFR Title: 

Content:
esign functions for normal operation and for the pre- vention or mitigation of accidents. The review under this SRP section does not deal with individual system design requirements necessary to assure that each system performs as intended, but rather considers the protection necessary to assure the operation of such systems in the event of nearby piping failures. The reviewer will select and emphasize material in the review, as may be appropriate for a particular case. 1. SPLB reviews the information presented in the SAR identifying all high and moderate energy fluid systems, and verifies by comparison with individual system temperatures and pressures that they have been correctly identified. The reviewer will then, by reviewing system descriptions of the high and moderate energy piping runs, and by reviewing the appropriate system arrangement and piping drawings, examine the plant arrangement measures that were taken to assure pro- tection from the effects of postulated pipe breaks of high energy systems, or of leakage cracks for moderate energy systems. The 3.6.1-3 Rev. 2 - October 1990 reviewer will determine from the SAR that the following means, either by themselves or in combination, have been used by the applicant to achieve this protection: a. High and moderate energy fluid systems are separated from essential systems and components, as defined in Appendix A to BTP SPLB 3-1. The reviewer inspects plant arrangement drawings and other information to verify that this is the case. b. High and moderate energy fluid systems, or portions thereof, are enclosed within structures or compartments designed to protect nearby essential systems or components. Or, the essential sys- tems and components are enclosed in protective structures. The reviewer traces the routing of the systems identified in the SAR as high or moderate energy systems on appropriate plant arrange- ment drawings, locates the postulated break locations specified in the applicant's analyses, and