Vogtle-3 auxiliary building module placed

摘要

The modular construction of a Wes-tinghouse AP1000 pressurized water reactor makes it possible for several activities to take place in parallel, saving time and averting the potential bottlenecks of stick-built construction. The modular approach has its own potential risks, however, and for an AP1000, perhaps the most demanding part of that approach is the placement of the CA20 module, which comprises essentially the entire structure of the reactor's auxiliary building and is the heaviest single item that has to be moved during construction. On March 8, the CA20 module for Unit 3 at the Vogtle site near Waynesboro, Ga., was rolled out of the modular assembly building and then lifted and lowered onto the nuclear island basemat.