File shows the typical section of DC and Earthing system of office building in the 2D Autocad DWG drawing model. Earth conductivity enhancing the mineral compound. Cross connector for flat conductor were given with the size of 25x3mm. Test joint, conductor holder for flat, cross connector for flat, flat conductor and ring earthing. Air cushion tank is provided and drain valve and inlet with isolating valve. Thanks for downloading the autocad 2D DWG drawing file and other CAD program from the our cadbull website.