Originally Posted By: jtedesco This post was automatically imported from our archived forum.
Why is it improper to support and secure branch-circuit wiring methods of NM-B cables that are located above a suspended, or dropped ceiling that supply light fixtures or equipment?
Originally Posted By: jmyers This post was automatically imported from our archived forum.
How about because it would be subject to physical damage since the ceiling is not a permanent installation. In addition to those good reasons that were previously listed by others!
Originally Posted By: jtedesco This post was automatically imported from our archived forum.
Quote:
Why is it improper to support and secure branch-circuit wiring methods of NM-B cables that are located above a suspended, or dropped ceiling that supply light fixtures or equipment?
OPPS, I MADE A MISTAKE, I should have posted this sentence instead! 
Why is it improper to support and secure branch-circuit wiring methods of NM-B cables "to raceways or other cables" that are located above a suspended, or dropped ceiling that supply lighting fixtures or equipment?
In addition to those good reasons that were previously listed by others!