How does the use of flexible cable/hose carriers on elevator cars and other moving machinery square with 300.8 in the NEC? Are these devices not considered either raceways or cable trays?
I ask because I recently installed such a system, and the manufacturer had specific instructions for installing hydraulic lines, air/water hoses, etc., along with power and control wiring. My installation included lots of low voltage instrumentation, several video cables, a 120VAC power circuit, and a 1/4" compressed air line. The system in question is an "Energy Chain" by Igus, Inc.
http://igus.bdol.com/echain/ec_cat1.asp?p=ec_6_48.gif
