Document: NUREG-0800
Document ID: 4b58df3f-1f93-4271-aa73-22de04083915
Document Type: srp
Title: LOSS OF NORMAL FEEDWATER FLOW
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0703/ML070300709.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.2.7
CFR Part: 
CFR Title: 

Content:
ications. 3. Compliance with GDC 15 requires that the reactor coolant system and associated auxiliary, control and protection systems shall be designed with sufficient margin to ensure that the design conditions of the reactor coolant pressure boundary are not exceeded during any condition of normal operation, including AOOs. 15.2.7-7 Revision 2 - March 2007 GDC 15 is applicable to SRP Section 15.2.7 because this section evaluates the consequences of the events of a loss of normal feedwater flow transient that result in a decrease in heat removal by the secondary system with the potential for causing the reactor coolant system pressure to change in response to the increase in reactor coolant temperature. Meeting the requirements of GDC 15 provides assurance that the design conditions of the reactor coolant pressure boundary are not exceeded for the initiating events evaluated in this SRP section involving a decrease in heat removal by the secondary system. 4. Compliance with GDC 17 requires (in part) that an onsite and an offsite electric power system shall be provided to permit functioning of structures, systems, and components important to safety. The safety function for each system (assuming the other system is not functioning) shall be to provide sufficient capacity and capability to ensure that SAFDLs and design conditions of the reactor coolant pressure boundary are not exceeded as a result of AOOs. GDC 17 is applicable to SRP Section 15.2.7 because the loss of normal feedwater flow transient is an AOO. Meeting the requirements of GDC 17 provides assurance that SAFDLs and design conditions of the reactor coolant pressure boundary are not exceeded as a result of a loss of normal feedwater. 5. Compliance with GDC 26 requires that two independent reactivity control systems be provided capable of reliably controlling reactivity changes to ensure that acceptable fuel design limits are not exceeded. GDC 26 is applicable to SRP Section 15.2.7 because this section