Document: NUREG-0800
Document ID: dd8f36ba-bf50-446f-97d9-20e92cbdee8a
Document Type: srp
Title: CONDENSATE AND FEEDWATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0703/ML070380221.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.7
CFR Part: 
CFR Title: 

Content:
hown that such sharing will not 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. 4. GDC 44 requires that a system be provided to transfer heat from structures, systems, and components important to safety to an ultimate heat sink. The safety function of this system shall be to transfer the specified combined heat load under normal operating and accident conditions. Suitable redundancy in components and features, as well as suitable interconnections, leak detection, and isolation capabilities, shall be provided to ensure that the system safety function can be accomplished for loss of either onsite or offsite power assuming a single failure. GDC 44 applies to SRP Section 10.4.7 because the review establishes that the CFS is capable of providing heat removal from the reactor system during normal conditions. For PWRs, the auxiliary feedwater system provides heat removal during accident conditions involving loss of normal feedwater. (The auxiliary feedwater system is evaluated under SRP Section 10.4.9.) For BWRs, the reactor core isolation cooling system provides heat removal during accident conditions involving loss of normal feedwater. (The reactor core isolation cooling system is evaluated under SRP Section 5.4.6.) Review of the CFS is coordinated with those of alternate feedwater systems and 10.4.7-8 Revision 4 - March 2007 addresses redundancy, interconnections, leak detection, and isolation capabilities to establish that containment isolation can be