ROUTINE TRANSPORT WITH A DUAL PURPOSE CASK: THE TN 52 L

The Leibstadt NPP (KKL) spent fuel management strategy consist of cooling of the spent fuel assemblies (SFA) at the reactor site prior to reprocessing a limited quantity of SFA and storing the remaining SFA in casks at ZWILAG. ZWILAG is a centralised off-site interim storage facility built by the Swiss NPP operators and recently (July 2001) came into operation. At some late stage, these SFA would be sent for reprocessing or directly disposed off. In order to implement this strategy in a cost-effective manner, EGL (on behalf of KKL), having identified the needs and requirements and after a thorough evaluation, purchased from Transnucléaire a dual-purpose high capacity transport cask that could also be used for interim storage. It also purchased six TN 97L dualpurpose casks for storage of spent fuel at ZWILAG.