Yea i didnt think there was anything which gives a specific. I am doing a retro-fit. The kicker is the old system must stay operational throughout the project. I am only to remove and replace the NAC circuits. So digging into the old conduit runs to get in my new wire in is impractical in some points. There is J-hooks and even cable-tray in most of my hallways and main corridoors but cutting across these to my devices is the problem, and some hallways that have no such means of support. It is in a occupied health facilty and a multi-floor, concrete building at that. So drilling in new supports could be very problamatic due to dust and noise concerns. I of course not only want to be legal but take pride in my work as well. I feel there is really only rules telling me what NOT to do rather than what is allowed. Like article 760.143 for instance. Anyway the cable will always be concealed in a drop-ceiling, and trying to find things to strap it to, let alone at what interval is a mystery. The code tells us specifics for other types of cable?(like romex, MC, SER, etc.) So why not fplr?
