Document: NUREG-0800
Document ID: 0af4f9ae-50c5-442e-a28a-62579880e133
Document Type: srp
Title: -
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0622/ML062210398.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.2.1
CFR Part: 
CFR Title: 

Content:
B. Power Ascension Test Considerations for Plant Modifications 1. General Discussion EPUs may involve significant modifications to major BOP equipment, in addition to setpoint adjustments and operating parameter changes. Therefore, within its respective technical area, each secondary review branch will assess if the licensee adequately evaluated and established appropriate power ascension testing requirements to address the aggregate impact of EPU plant modifications, setpoint adjustments, and parameter changes on the dynamic response of the plant (including primary and secondary plant response, as well as the response of SSCs important to safety) to anticipated operational occurrences. The objective of this review is to provide assurance that the nature and extent of plant modifications, setpoint adjustments, and parameter changes were adequately considered in the development of the EPU test program. The power ascension testing described in RG 1.68, Appendix A, Section 5, “Power Ascension Tests,” focuses on testing that is necessary to demonstrate that the plant will operate in accordance with design specifications both during normal steady-state conditions and, to the extent practical, during and following anticipated operational occurrences. Anticipated operational occurrences are conditions of normal operation that are expected to occur one or more times during the life of the plant and include events such as loss of all offsite power, tripping of the main turbine generator set, and loss of power to all recirculation pumps. The reviewer is not expected to evaluate the specific component-and system-level testing provisions for each plant modification, parameter change, or setpoint adjustment. Based on previous experience, testing required by technical specifications (TSs) and existing 10 CFR Part 50, Appendix B, QAPs can be relied upon to adequately demonstrate individual system or component performance characteristics. Therefore, this review is intended to