Document: NUREG-0800
Document ID: 33a67dd5-21e3-4458-9085-803f75466a73
Document Type: srp
Title: OVERPRESSURE PROTECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070540076.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.2
CFR Part: 
CFR Title: 

Content:
f the condensate and feedwater pumps, high-pressure injection control rod drive pumps, low-pressure coolant spray or injection system, high-pressure coolant spray system, or the standby liquid control system is prevented administratively or (2) that system operation cannot generate sufficient pressure head during low-temperature operation leading to a possible cold overpressure event provided that the applicable pressure-temperature curves, the vessel temperature and the pressure rating of the available means of injecting water into the vessel. C. For pressurized water reactors (PWRs), the area of review for operation at power includes pressurizer, SRVs, and the piping from these valves to a quench tank or to containment atmosphere on the primary side, as well as steam generator SRVs on the secondary side. The PWR description of the basic design concept; the systems, subsystems, and support systems providing overpressure protection to the RCPB; the components and instrumentation employed in these systems; and process and instrumentation diagrams should be reviewed for power operation. D. For PWRs, the area of review for low-temperature operation of the plant (startup, shutdown) includes relief valves with piping to a quench tank or the containment sump, the makeup and letdown system, and the residual heat removal (RHR) system that may be operating when the primary system is water solid. The PWR description of the basic design concept; the systems, subsystems, and support 5.2.2-3 Revision 3 - March 2007 systems providing overpressure protection to the RCPB; the components and instrumentation employed in these systems; and process and instrumentation diagrams should be reviewed for low temperature operation. 2. Testing and Inspections. The areas of review include an examination of the adequacy of the proposed pre-operational and initial startup test programs. 3. Technical Specifications. The areas of review include technical specifications to assure that they are