Inexpensive wiring conduit idea

Howdy,

I've been thinking about how to run wires in an aluminum wing that is already
finished. I can fish something through the holes in the ribs, but I don't
want to just let a wire or cable lay on the raw edges of the rib holes.

I think that the CPVC hot water tubing from Home Depot might make an excellent
conduit. It is light weight, flexible enough to fish through the structure,
and so tough it is hard to cut with a knife. After fishing it through the
wing, and tying it down on the two ends, it would be really easy to pull wires
through at any time later.

I don't know what the fire rating of the stuff is. But I do know that CPVC
has a much higher working temperature than regular pvc. It is used for
electrical conduit in building construction.

What do you think?

thanks,
tom pettit