Document: NUREG-0800
Document ID: 7618541a-760e-4727-b8a2-2964447ab902
Document Type: srp
Title: - 15.4.5-6
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550007.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.4.4
CFR Part: 
CFR Title: 

Content:
Revision 2 - March 2007 that the design conditions of the reactor coolant pressure boundary are not exceeded during any condition of normal operation, including AOOs. GDC 15 is applicable to this SRP section because the reviewer evaluates the consequences of events associated with startup of an inactive loop or recirculation loop at an incorrect temperature and with a flow controller malfunction causing an increase in BWR core flow rate. This section, SRP Sections 4.2 through 4.4, and 7.2 through 7.5, and Regulatory Guides 1.53 and 1.105, provide guidance ensuring that the reactor coolant system and associated auxiliary, control and protection systems are designed with appropriate margin. Meeting the requirements of GDC 15 provides assurance that the reactor coolant pressure boundary will not be breached during any condition of normal operation, including the effects of AOOs. 4. Compliance with GDC 20 requires that the protection system be designed (a) to initiate automatically the operation of appropriate systems, including the reactivity control systems, to ensure that SAFDLs are not exceeded as a result of AOOs, and (b) to sense accident conditions and to initiate the operation of SSCs important to safety. GDC 20 is applicable to this section because the reviewer evaluates the consequences of the events associated with startup of an inactive loop or a recirculation loop at an incorrect temperature and with a flow controller malfunction causing an increase in BWR core flow rate. This section, SRP Sections 4.2 through 4.4, and 7.2 through 7.5, and Regulatory Guides 1.53 and 1.105, provide guidance for ensuring that the reactor coolant system is designed with appropriate margin. Thus, when the reactor protection system senses an accident condition, it will initiate the operation of SSCs important to safety to ensure that SAFDLs are not exceeded. Meeting the requirements of GDC 20 provides assurance that SAFDLs are not exceeded during any condition of normal