Thermal cabinets for 19-inch racks, EISCAT_3D

This concerns the purchase of 194 thermally controlled and thermally insulated cabinets fitted inside existing 19-inch rack, which are in turn inside an existing 20-foot container. EISCAT_3D is based on 228 20-feet containers in total, whereas only 37 of those are fully populated with both Receivers and Transmitters – the remaining containers are only populated with the Receiver that fits in parts of one 19-inch rack. The electronics in the containers require a thermally controlled environment, and the current design only allows the entire container to be controlled. For cost saving reasons, we want to limit the heating requirements in the receive-only containers by introducing a temperature-controlled cabinet for the receivers – and leaving the rest of the volume in the container unregulated.