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 HotLine1. 06/13/18 01:50 PM
GE Lighting Recalls LED Tube Lamps
by Admin. 06/12/18 09:32 PM
Ketra Recalls Recessed Downlights
by Admin. 06/12/18 09:17 PM
diazed fuses
by Texas_Ranger. 06/11/18 07:31 AM
soda can fuse from UK, facebook
by wa2ise. 06/06/18 11:02 PM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 7 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
2 services or 1? #102807
11/29/06 08:16 PM
11/29/06 08:16 PM
U
u2slow  Offline OP
Member
Joined: Sep 2003
Posts: 200
Salt Spring, BC, Canada
I have an interesting project I've been brought into.

5 acre property. One main residence. One secondary mobile home (rental). One 5000sqft shop.

The main service will come into the shop. There is discussion over how it will be metered - i.e. how many meters, primary or secondary, etc. Another issue is building it to allow for a future genset & UPS - *mainly* for the primary residence, but some backup power for the rental and shop would be 'nice to have'.

So at least 3 different scenarios are on the table:

1) 2x primary metering. One for rental (100A). One for shop (300A). House is a sub off the main shop panel.

2) 2x secondary metering. 400A service in shop. 1 meter for rental. 1 meter for shop/house. Shop & house each have their own panel.

3) 3x primary metering (like duplex, but 3 meters). One individually metered service for each building.

Now I don't have enough experience with generators & transfer switches to see whch will be easiest to add backup power to, or what allowances would be good to do now.

Any input is appreciated.

Tools for Electricians:
Re: 2 services or 1? #102808
12/04/06 10:01 PM
12/04/06 10:01 PM
M
marsbar  Offline
Member
Joined: Apr 2006
Posts: 31
london, ont, canada
I have only worked on a couple of back up systems for our plant, not residential, but the feed from the poco comes in through the switch as does the generator and is monitored through the switch (if auto switch) then it could go out as you would like. You may want to look at your generator size first then how you would connect. This may not be very helpful but may start a string going.

Re: 2 services or 1? #102809
12/11/06 12:45 AM
12/11/06 12:45 AM
U
u2slow  Offline OP
Member
Joined: Sep 2003
Posts: 200
Salt Spring, BC, Canada
Thanks for the reply!

After a talking to a couple of other sparkies I know, I mostly went this way:

Quote

1) 2x primary metering. One for rental (100A). One for shop (300A). House is a sub off the main shop panel.


The 300A is now up to a full 400A to maximize the equipment. Separate triplex run in for the rental. I made sure there was a generous distance between the 400A splitter and the 200A switch (for the house) to accomodate a transfer switch and at a later date.


Featured:

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

 

Member Spotlight
electure
electure
Fullerton, CA USA
Posts: 4,268
Joined: December 2000
Show All Member Profiles 
Top Posters(30 Days)
twh 5
Popular Topics(Views)
247,625 Are you busy
184,968 Re: Forum
174,205 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.016s Queries: 14 (0.004s) Memory: 0.9511 MB (Peak: 1.0710 MB) Zlib enabled. Server Time: 2018-06-21 04:53:21 UTC