All references are based on the 2014 edition of the NEC.
Hitchin’ a Ride
Believe it or not, buried deep in this bundle is a piece of ¾-in. electrical metallic tubing (EMT). Unfortunately, all of the communication cables, raceways, and optical fiber cables that are secured to it obscure it from view. Not only are these cables and raceways putting extra strain on the clips that were designed to secure and support only one EMT, but they can also trap the heat