ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Calling all Non-US members!! (Non-US only)
by Bill Addiss. 08/13/18 05:52 PM
Upgrade the old panel
by gfretwell. 08/13/18 12:20 AM
depth of duckbank
by ghost307. 08/12/18 09:26 PM
Section 179 vehicle purchases
by BigB. 08/05/18 01:06 PM
Don't you buy this stuff
by BigB. 08/05/18 01:00 PM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 5 guests, and 24 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Multiple feeds #100149
10/23/06 04:25 PM
10/23/06 04:25 PM
S
Steve T  Offline OP
Member
Joined: Feb 2001
Posts: 306
Oak Park, IL, USA
Is it possible to have a circuit feed both a lighting panel and a rooftop RTU? I have a set of 4/0's protected at 200amp from an MDP that is split in a j-box, the 4/0's continue to feed a lighting panel and a set of 3/0's goes up to a rooftop RTU. I don't have all the details of the rtu disco, fusing etc, but assuming they were all rated properly, is this installation possible? Is this considered a tap?

2017 / 2014 NEC & Related Books and Study Guides
Re: Multiple feeds #100150
10/23/06 04:33 PM
10/23/06 04:33 PM
I
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
It's not a 'tap' unless some of the conductors are rated less than the OCP protecting them.

It is sure a unusual set up but it could be code compliant if the load, conductors and overcurrent protection all match up properly.


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Re: Multiple feeds #100151
10/23/06 06:01 PM
10/23/06 06:01 PM
S
Steve T  Offline OP
Member
Joined: Feb 2001
Posts: 306
Oak Park, IL, USA
Yeah--

Unfortunately, that's what I think too. But maybe forcing a detailed load calculation of the panel will convince them to do a separate run to the RTU. Sure hate to have to shut down lighting in half the place in order to work on the unit.

Thanks.


Featured:

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

 

Member Spotlight
Niko
Niko
Campbell, CA
Posts: 356
Joined: August 2006
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
248,506 Are you busy
186,194 Re: Forum
175,656 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.015s Queries: 14 (0.003s) Memory: 0.9505 MB (Peak: 1.0751 MB) Zlib enabled. Server Time: 2018-08-14 08:27:12 UTC