708 is no annex, it's an article just like 701 and 702. And probably driven by the fed going wild with cancelling all the old guidance in favor of commercial standards before waking up and realizing that, "Hey, we actually needed some of that special stuff after all..."

My interpretation of 708.10(C) is that the feeder conductors themselves be protected and functioning for 1-hour in a fire. Which makes perfect sense for the COPS this article applies to. We're not talking wal-mart here, we're talking missile silos, comm centers, etc.

Dean, 708.10(C)(1) and (4) requires a listing; 708.10(C)(2) does not, and appear to allow a 1hr assembly to be built up from gypsum. Will we start seeing RMC lagged like pipe, I wonder?

Which is funny, as probably 90% of the existing COPS installations out there are just using EMT or open cable tray...