I'd have to double check, but I believe you could run a piece of strand from the ceiling down to the floor and support the cable to it. (Basically an OSP horizontal run brought indoors and run vertically).

For a 20' drop, you wouldn't need much of a strand (¼", maybe...)

You could also run kindorf (unistrut) from the ceiling down to the door and use it to support EMT. Or just tie the cable to the unistrut. Not as pretty, but cheaper.

I'll think more on it tonight.

Sam

Last edited by Silversam; 11/23/16 12:48 AM.
"Where are we going and why are we in this hand basket?"