334.12 Uses Not Permitted.
(A) Types NM, NMC, and NMS. Types NM, NMC, and NMS cables shall not be used as follows:
(1) As open runs in dropped or suspended ceilings in other than one- and two-family and multifamily dwellings.
Another thing to consider is local ordinances...I did a store in one county here in NJ, ALL wiring had to be in EMT, 6' whips of MC to fixtures(max. length)...at another store in different county, ALL BX/AC.Originally posted by EEC:
Code reads as long as romex does not enter dropped ceiling area it's permitted, that's my understanding from answers
It is my understanding that local requirements are not legal in NJ. The state follows a uniform electrical code based on the NEC. Local and county requirements are unenforceable.Originally posted by celtic:
Another thing to consider is local ordinances...I did a store in one county here in NJ, ALL wiring had to be in EMT, 6' whips of MC to fixtures(max. length)...at another store in different county, ALL BX/AC.Originally posted by EEC:
Code reads as long as romex does not enter dropped ceiling area it's permitted, that's my understanding from answers
Check with your AHJ before submitting a bid.
It's been so long since I did retail work, it could very well have been a job spec.Originally posted by infinity:
It is my understanding that local requirements are not legal in NJ. The state follows a uniform electrical code based on the NEC. Local and county requirements are unenforceable.
I wonder if NM-B is intentionally omitted from that list.Originally posted by celtic:
334.12 Uses Not Permitted.
(A) Types NM, NMC, and NMS. Types NM, NMC, and NMS cables shall not be used as follows:
(1) As open runs in dropped or suspended ceilings in other than one- and two-family and multifamily dwellings.
If it is intentional - it is not by my hand.Originally posted by LarryFine:
I wonder if NM-B is intentionally omitted from that list.
From the 2002 NECH:Originally posted by EEC:
What about fire code rated drop ceiling panels? Will these qualify the romex to be run in ceiling space above fire code rated drop ceiling panels.
So my answer would be:Revised for the 2002 Code, 334.12(A)(1) prohibits any nonmetallic sheathed cables installed as ?open runs? in the space above accessible hung ceilings. This change does not affect dwelling-type occupancies. Open runs of cable, as used in this requirement, may be defined as cables installed as ?open? or ?not protected? installations that remain accessible after construction.