ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
FPE in Germany
by HotLine1. 01/17/18 07:07 PM
VDE 0100 to introduce AFCIs
by LongRunner. 01/17/18 10:32 AM
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
Air Compressor feeder conductor sizing
by Potseal. 01/15/18 09:08 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
1 registered members (Potseal), 9 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Multiple Branch Feeders to the same building #199547
03/01/11 12:14 PM
03/01/11 12:14 PM
K
kitha  Offline OP
Member
Joined: Nov 2002
Posts: 12
Hamilton, ON, Canada
I have the service entrance panel in one building(say bldg#1) and it feeds to an existing building(bldg#2) with a 400A underground feeder. An additon is required to the building#2. Due to that total service required is 600A. Can I add a second 200A underground feeder to building#2 while the previous 400A underground feeder is stil there? This is for Ontario Canada. Do not mixup with Rule6-102 whic is applicable for multiple utility services. In my case utility meter is in bldg#1. No more utility meters are required for bldg#2.

Tools for Electricians:
Re: Multiple Branch Feeders to the same building [Re: kitha] #199554
03/01/11 02:46 PM
03/01/11 02:46 PM
M
mikesh  Offline
Member
Joined: Jun 2006
Posts: 613
Victoria, BC, Canada
The answer lies in part with the utility if the second building is metered by them. BC Hydro does not like 2 meters for the same customer space.
If not the Ontario Authority might require demarking the area the other feeder supplies. Nothing worse than cross wiring a place from 2 panels.

Is the addition part of the same occupancy? If so maybe dedicating the new 200 to the addition.

I can't think of a code rule that prevents what you are planning. Certainly the need to disconnect the entire building in a fire might need to be addressed and lableing could be very important IE a sign at each panel stating there is another panel and at the supply end too.

Re: Multiple Branch Feeders to the same building [Re: kitha] #199641
03/03/11 11:55 AM
03/03/11 11:55 AM
J
jay8  Offline
Member
Joined: Jul 2005
Posts: 183
Vancouver, BC
if this is a 208 volt feeder you could consider retaining single feeder and stepping up to 600 volt at building 1 and back down to 208 at building 2, which would give you the capacity. But if the feeder is already 600 volts, then I guess its back to second feeder.


Featured:

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

 

Member Spotlight
Trumpy
Trumpy
SI,New Zealand
Posts: 8,231
Joined: July 2002
Show All Member Profiles 
Top Posters(30 Days)
Admin 20
sparky 18
Potseal 13
Popular Topics(Views)
243,543 Are you busy
180,346 Re: Forum
170,832 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.016s Queries: 15 (0.004s) Memory: 0.9500 MB (Peak: 1.0740 MB) Zlib enabled. Server Time: 2018-01-19 03:31:30 UTC