ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
AreMetal Ladders Ever OK For Electrical Work?
by HotLine1. 01/22/18 07:31 PM
Photocell
by twh. 01/22/18 05:06 PM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 16 guests, and 6 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
MC in a nema #28009
08/07/03 06:05 PM
08/07/03 06:05 PM
J
JCooper  Offline OP
Member
Joined: Dec 2002
Posts: 228
Kendall Park, NJ USA
Hello all, The company I work for does all low voltage security work, mostly card access systems. When we do an install larger than two doors we install a 30"X36" nema 1 enclosure with all the controllers and terminal blocks prewired at our shop and mounted on a backplate. We also install a 1900 box on the backplate and have the building EC provide us with 110vac at the outlet. When they bring the cable into the enclosure they usually run mc and put the connector on the outside of the enclosure and run the thhn thru a bushing in the bottom of the 1900 box. My question is if there is any requirement to have the 110 vac physically seperated from our low voltage wiring, which if I read the code correctly there is a barrier required. If they put a bushing on the outside of the enclosure and ran the mc inside to the proper connector on the 1900 box would there be any violations? Also would they bew able to run the mc thru chase nipples between enclosures, the job I am doing now has three of them side by side. I know there would have to be seperate nipples for the ac and one for the low volt but is it allowed? Thanks in advance

Jim

Work Gear for Electricians and the Trades
Re: MC in a nema #28010
08/08/03 07:49 AM
08/08/03 07:49 AM
N
nesparky  Offline
Member
Joined: Jun 2001
Posts: 642
omaha,ne
IMHO if you build the box you provide the barrier/ 120v compartment.


ed

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
cookcc
cookcc
California ,Long Beach
Posts: 28
Joined: May 2007
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
sparky 15
Potseal 15
Popular Topics(Views)
243,599 Are you busy
180,406 Re: Forum
170,869 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.014s Queries: 14 (0.003s) Memory: 0.9411 MB (Peak: 1.0575 MB) Zlib enabled. Server Time: 2018-01-23 13:59:50 UTC