Not Amiga related, but I've got a technical question that's a real head-scratcher and my Google-fu isn't working for me today. Figured it couldn't hurt to ask it here.
Question is: I'm doing the network wiring for a 9,000 sq. foot, two-story office building. We've got about 150 Cat 6 cables to run from the second-floor network/server room down into the plenum airspace on the first floor, where they'll be pulled to all the 1st floor cubicles. The construction of the building and floors is solid concrete. To facilitate running the cables we had our plumber drill two roughly 6" diameter holes through the concrete floor, so we can drop the cables straight down. Now we're looking for some kind of way to sleeve these holes; can't use PVC pipe because of fire code, but am not having any luck finding a clean, neat solution that meets code and will keep the wires organized. We're using all plenum-rated cable, wire ties, and J-hooks, so no problem there, it's just how do we neatly put some kind of conduit between the floors that will keep the cables organized (while allowing us to slip more cables through in the future), and will meet fire code?
I put together this illustration to try to explain what we're looking for, including a photo of the bore holes, here:
http://farm9.staticflickr.com/8207/8201013162_6e0ba0c094_o.jpgLinks to product pages would be especially helpful, I can't believe I'm the first person who's ever had to run cable between a couple floors of a building before!
