Transient & Accident Safety Analysis
Each time, a change is made to a nuclear power plant, the licensee must evaluate whether an unreviewed safety question exists. The law that governs this is referred to as 10 CFR 50.59. If an unreviewed safety question exists, the licensee must obtain NRC permission to perform the change. This law also applies to certain tests.
Every year the licensee also must submit to the NRC an update of all facility changes performed within the year for which NRC approval was not needed.
Each cycle, the licensee must re-analyze the impact of various types of transients and accidents. The reason these studies are done each cycle is that the fuel characteristics may change; thus the different types of accidents and transients could affect the fuel differently. Some of the typical transients and accidents analyzed are reported in Section 14 of the Nuclear Power Plants' Final and Updated Safety Analysis Reports. Examples include:
Copyright © 1996-2006. The Virtual Nuclear Tourist. All rights reserved. Revised: December 21, 2005.