A picture of the ceiling with everything removed. Terminating all the field devices. Notice the blue tags on all the ceiling panels and panel trim. I had them all numbered and a map showing their location. This made re-assembly go a lot easier. The last two pictures are of the ground connection in the AC plug boxes. Since the box is fiberglass there is no connection point. The wires are an in, an out, and a pig tail to the plug. To prevent shorting, I encased the whole package in heat shrink. All connections are made in a box. No more spices in wire bundles.