Document: NUREG-0800
Document ID: a4637484-a66d-4066-b2e7-77b0ea7d3187
Document Type: srp
Title: 2.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070601.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.9.16
CFR Part: 
CFR Title: 

Content:
g compliance with this criterion. Meeting the requirements of this criterion provides a level of assurance that the capability to shut down the reactor safety will be maintained during the most severe expected earthquake or other natural phenomena.51 2. GDC 4 requires that structures, systems, and components important to safety shall be appropriately protected against dynamic effects that may result from equipment failures and from events and conditions outside the nuclear power unit. GDC 4 applies to SRP Section 10.4.7 because the review verifies that CFS components important to safety are protected against the effects of high-energy pipe ruptures. This review also considers the dynamic consequences of flow instabilities (specifically, water hammer) resulting from normal operation and during anticipated operational occurrences. Meeting the requirements of this criterion provides further assurance that the integrity of the feedwater piping inside the containment structure will be maintained, thereby minimizing the likelihood of a loss-of-coolant accident that could cause fuel damage.52 3. GDC 5 requires that structures, systems, and components important to safety shall not be shared by nuclear power units, unless it can be shown that such sharing will not DRAFT Rev. 4 - April 1996 10.4.7-6 significantly impair the ability to perform safety functions, including an orderly shutdown and cooldown of remaining units in the event of an accident in one unit. GDC 5 applies to SRP Section 10.4.7 because the review determines whether CFS components important to safety are shared and, if so, evaluates the impact of that sharing on safety functions. Meeting the requirements of this criterion provides further assurance that all reactors at a multiple-unit site will be capable of completing normal shutdown in the event of a component failure in one reactor.53 4. GDC 44 requires that a system be provided to transfer heat from structures, systems, and components important to safety