Document: NUREG-0800
Document ID: cf61f16a-4e82-42da-8333-e100f557fd60
Document Type: srp
Title: PLANT DESIGN FOR PROTECTION AGAINST POSTULATED PIPING FAILURES IN
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550032.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.6.1
CFR Part: 
CFR Title: 

Content:
hat a suitable and controlled operating environment will be provided for SSCs during normal operations, during anticipated operational occurrences, and during and after postulated accidents, including loss-of-coolant accidents. These requirements are imposed to ensure (a) that piping failures in fluid systems outside the containment will not cause the loss of needed function in safety-related systems and (b) that the plant could be safely shut down in the event of such a failure. Meeting the requirements of 10 CFR Part 50, Appendix A, GDC 4 provides assurance that safety-related SSCs will be able to maintain their safety-related functions in the environmental conditions resulting from a postulated piping failure. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. All the systems of concern in this section have been reviewed under other SRP sections with respect to design functions for normal operation and for the prevention or mitigation of accidents. The review under this SRP section does not deal with individual system design criteria necessary to ensure that each system performs as intended, but rather considers the protection necessary to ensure the operation of such systems in the event of nearby piping failures. 1. A review of the information presented in the Safety Analysis Report (SAR) identifying all high and moderate energy fluid systems, and verification of individual system temperatures and pressures to ensure that they have been correctly identified. The reviewer evaluates for adequacy the system descriptions of the high and moderate energy piping runs and