Document: NUREG-0800
Document ID: 824740ba-eb51-4b24-bd6f-df01c35d75f3
Document Type: srp
Title: LOSS OF NONEMERGENCY AC POWER TO THE STATION AUXILIARIES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550008.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.2.6
CFR Part: 
CFR Title: 

Content:
f assurance that specified acceptable fuel design limits are exceeded and that fuel cladding integrity is maintained in loss of nonemergency ac power to the station auxiliaries. 2. GDC 13 requires the provision of instrumentation that is capable of monitoring variables and systems over their anticipated ranges to assure adequate safety, and of controls that can maintain these variables and systems within prescribed operating ranges. GDC 13 applies to this section because the reviewer evaluates the sequence of events, including automatic actuations of protection systems, and manual actions, and determines whether the sequence of events is justified, based upon the expected values of the relevant monitored parameters and instrument indications. 3. GDC 15 requires that the RCS and its auxiliary, control, and protection systems be designed with sufficient margin so design conditions of the reactor coolant pressure boundary are not exceeded during any condition of normal operation, including anticipated operational occurrences. GDC 15 applies to this section because the reviewer evaluates the consequences of the loss of nonemergency ac power to the station auxiliaries. This transient is an anticipated operational occurrence, and the reactor coolant pressure must be analyzed to confirm whether the pressure acceptance criterion is satisfied. GDC 15 requirements provide assurance that the design conditions of the reactor coolant pressure boundary are not exceeded in the loss of nonemergency ac power to the station auxiliaries. 4. GDC 26 requires that one of the reactivity control systems consist of control rods capable of reliably controlling reactivity changes with appropriate margin for malfunctions like stuck rods so that specified acceptable fuel design limits are not 15.2.6-6 Revision 2 - March 2007 exceeded under conditions of normal operation, including anticipated operational occurrences. GDC 26 applies because the transient analyzed in this section involves the