Greetings,
I'm not sure why but lately I've come across a lot of systems installed above drop ceilings. It's obvious they were installed after the ceiling was installed some as high as 12 feet. What I'm looking for are any national codes prohibiting the practice. So far the only one I can find from NEC is that no flexible cords may be plugged into an outlet above a drop ceiling that is 400.7 I believe. I also thought there was a code about equipment being installed at a workable height and clearance? These clients think I'm nuts when I tell them before I work on it I have to move it. The general response is whatsa matter ain't you got a ladder?
Thanks

John 807