Hello, I was asked to come out to add a 120v outlet in a warehouse. When I went out to see the job they had a powerstrip plugged into an extension cord that ran up approx 35' over a beam then it ran over approx 25' and back down to a wall outlet. He said the fire marshall came in and said to get rid of the extension cord. He uses this power to supply (2) computers, printer, fax, radio etc. along with whatever else is connected to it...The panel is about 50' away so I planned on installing a 20amp breaker, running 1/2" conduit up to the ceiling, over approx 50' to a 4x4 j-box. then ???, The drop cords hang aprox 25" from the ceiling, I'm looking for suggestions on the best way to install these drop cords or to supply power to this unwalled office in middle of the warehouse.??? Any suggestions would be greatly appreciated...