dpc - The ductbank configuration will be will be a 4 tube 5" PVC run with 3' of fill over the ductbank. The 4th tube is a spare. I'm having a geotech run on the ground in the area of the ductbank for thermo conductivity. There are various natural thermo conductive materials available here, one...
I have a dispute going with our design engineer over the location and feeder sizing for a new 6.9 kV 1200 amp switchgear. The gear will be feeding 10 loads which will run almost continuously and represent 80% of the bus sizing. He wants to locate the gear in the main power distribution center...