Document: NUREG-0800
Document ID: b8e96856-10d6-4a01-99ff-6618d335e774
Document Type: srp
Title: 15.3.2.-4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550010.pdf
Revision Date: 2023-06
Chapter: 15
Section ID: 15.3.1
CFR Part: 
CFR Title: 

Content:
systems should be maintained below 110 percent of the design values. 2. Fuel-cladding integrity must be maintained by the minimum DNBR remaining above the 95 percent probability/95 percent confidence DNBR limit for PWRs and the critical power ratio (CPR) remaining above the minimum critical power ratio (MCPR) safety limit for BWRs based on acceptable correlations (see SRP Section 4.4). 3. An incident of moderate frequency should not generate an aggravated plant condition without other faults occurring independently. 4. The requirements stated in RG 1.105, "Instrument Spans and Setpoints," are evaluated for their impact on the plant response to AOOs addressed in this SRP section. 5. Onsite and offsite electric power systems must be maintained so safety-related SSCs function during normal operation and AOOs. 6. The most limiting plant system single failure, as defined in the "Definitions and Explanations" of 10 CFR 50, Appendix A, must be assumed in the analysis and should follow the guidance of RG 1.53.