It's definitely an expensive option, especially when you see that you need to follow the installation instructions to the letter; including the special stainless steel tywraps.

I specified it once when there was "no physical way" to get a rating on a conduit run in a hospital. It was interesting to see how it went from "no physical way" to "OMG, this costs HOW MUCH???" to a field verified reroute that allowed the conduit path to be under the slab via a sawcut trench.
This stuff was originally designed for the nuclear power folks where the conduits needed to be fire-rated pretty much everywhere.

Why protect everything in sight? If you had a fire you didn't want to wipe out the safety, control, alarm, emergency functions all at the same time.


But back to your question; is there a way that you can create a big conduit chase and route most of the runs through it? Even if it means that some of the runs will be taking a longer path it might work out cheaper and easier in the long run. Unless your AHJ raises an objection, I don't see a requirement that the conduits need to be separated from each other, just from the potential fire/disaster.


Ghost307