U.S. Nuclear Regulatory Commission Standard Review Plan 14.2.1 Generic Guidelines for Extended Power Uprate Testing Programs

摘要

This Standard Review Plan (SRP) section provides general guidelines for reviewing proposed extended power uprate (EPU) power ascension testing programs. This review provides assurance that the proposed testing programs adequately demonstrate that plant structures, systems, and components (SSCs) important to safety that are affected by the proposed power uprate will perform satisfactorily in service at the proposed uprated power level. There are three types of power uprates. Measurement uncertainty recapture power uprates involve power increases of less than 2 percent, and are achieved by implementing enhanced techniques for calculating reactor power. Stretch power uprates typically involve power increases of up to 7 percent and do not generally involve major plant modifications. EPUs involve power increases greater than stretch power uprates and have been approved for increases as high as 20 percent. EPUs usually involve significant modifications to major balance of plant (BOP) equipment. A power uprate is classified as an EPU based on a combination of the magnitude of the proposed power increase and the plant modifications necessary to support the requested uprate. This SRP applies only to EPU license amendment requests (LARs).