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:
SYSTEMS OUTSIDE CONTAINMENT REVIEW RESPONSIBILITIES Primary - Plant Systems Branch (SPLB) Secondary - None I. AREAS OF REVIEW The plant design for protection against piping failures outside containment is reviewed to assure that such failures would not cause the loss of needed functions of safety-related systems and to assure that the plant could be safely shut down in the event of such failures. The review includes high energy and moderate energy fluid system piping located outside of containment. If such a system pen- etrates containment (except for the auxiliary feedwater system) the review starts with the first isolation valve outside of containment. The review boundary for auxiliary feedwater systems extends either to the steam generator or to the feed- water (or steam) line, as appropriate. The SPLB reviews the plant design to assure conformance with the requirements of General Design Criteria 4. The specific areas of review are as follows: 1. SPLB reviews the general layout of high and moderate energy piping systems with respett to the plant arrangement criteria of Section 8.1 of Branch Technical Position (BTP) SPLB 3-1, which is attached to this SRP section. Three arrangement situations are covered by the criteria and all three may be encountered in a single plant. They are: a. Arrangements where protection of safety-related plant features is provided by separation of high and moderate energy systems from essential systems and components. b. Arrangements where protection of safety-related plant features is provided by enclosing either the high and moderate energy systems or the safety-related features in protective structures. Rev. 2-October 1990 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to the public as part of the Commission's policy to Inform the