Well we have cord drops in our facility. Not sure that I really like them, but they are useful. For one thing helps for lock out tab out. The one problem with them is when the equipment gets moved a few feet. Then you have a crooked cord hanging down. One of my pet peeves. One of the first things that I did when I started was to buy some string and tied a 1/2" nut on the end of it. Boys, here is you plumb bob, use it!
However if a drop is going to have an outlet box on the end of it we hard plumb it and attatch the box to a uni-strut stand.
BTW, we have had many OSHA inspections. We used to call them in voluntarily. The only comment about the drops was to make sure they have a strain releif attached at the ceiling.
Oh yeah, being in CA we do have earthquakes here and they help if the machines should walk during an earthquake.
Scott
