[Oeva-list] Question about planning for charging station

[gfifield at onlinenw.com]

Thanks Dan, Don and Dick,
Thanks for all the advice!

The garage is 45 feet from a service box outside my utility porch, and I
expect to have 4 90 degree elbows between the pull box outside my utility
porch, and the breaker box in the garage.

Before I cover the ditch I will lay in 1 1/2 inch pipe in addition to my
"120V 3/4" pipe" to the 12" x 12" x 8" pullbox. This will solve my
immediate need w/o spending on wire, permits and other
communications/control wires that might go down the 1 1/2" pipe at a later
date. (I double checked how I did my horse barn 10 years ago, and I did
use 3 #6 wires down a 3/4" PVC, but no "ground" since I was picking that
up down there via ground rods local. Yes it is tight with 3 #6 in a 3/4"
pipe 220ft run with service box in the middle.) I have lots of 3/4" pipe
left over, but I'll foot the bill for the 1 1/2" pipe, now that I have a
better picture for future provisioning.

So in the future, I'll be able to do the work to get the 220 out of the
home breaker panel to the service box, send the wires down the 1 1/2"
pipe, and add in a dedicated breaker panel in the garage. I'm wondering if
wired ENET would be a good idea/requirement for connection to a ShorePower
or Coulomb or ?? charging station?

Gene

> Hi Gene,
>
> Dick has the right idea. Putting a 60A double breaker in your existing
panel
> and running 3-#6AWG (2 line and 1 neutral), and 1-#8AWG ground, in at least
> a 3/4" conduit with no more than 360 degrees of total bends will meet
the
> requirements of the code. In the garage you can install a small sub
panel
> with 2 20A single breakers (1 for up to 10 outlets, and 1 for lighting),
and
> 1 50A double breaker for a welder and/or car charging. If you need to
have
> more than 360 degrees of total bends in your conduit you will need to
put
> a
> 'pull box' in the conduit so that no segment of the conduit has more
than
> 360 degrees of total bends. Although the code only requires a 3/4"
conduit
> for this run, I would put in at least a 1" and probably a 1 1/2" to make
life a whole lot easier.
>
> Dan
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 30 Jan 2010 13:40:43 -0800
> From: Dick Burnham <Dick-Burnham at hoffmancorp.com>
> Subject: Re: [Oeva-list] Question about planning for charging station.
To: "'gfifield at onlinenw.com'" <gfifield at onlinenw.com>,
> 	"oeva-list at oeva.org"	<oeva-list at oeva.org>
> Message-ID:
>
> <170F1529B91249449A690E7E1DAA5CD9062A006725 at HCC-TOWER.Hoffmancorp.com>
Content-Type: text/plain; charset="us-ascii"
>
> I am not an electrician and suggest you hire one.  At the very least run
this by the permit desk at the jurisdiction you live in and get a
permit.
> With that disclaimer - you will probably be better off running a single
pipe
> with 220 power to the garage and land it in a new sub panel.  Inside the
sub
> panel you can pull a 110 circuit with it's own breaker and land that on how
> ever many outlets you want or can run on that circuit.  In the future if
you
> want to add a 220 outlet for your spanking new EV then it is easy to add
breakers and pull a 220 circuit out of your panel without running any
new
> pipe or a bunch of wire to the garage.  The other benefit is that if you in
> your garage and pop the breaker it is right there to reset and you don't
have to run into the house.
>
> Good luck!
>
> Dick
>
> -----Original Message-----
> From: oeva-list-bounces at oeva.org [mailto:oeva-list-bounces at oeva.org] On
Behalf Of gfifield at onlinenw.com
> Sent: Saturday, January 30, 2010 11:53 AM
> To: oeva-list at oeva.org
> Subject: [Oeva-list] Question about planning for charging station.
>
> Hi,
>
> I'm digging a ditch to replace a faulty underground power connection to
my
> detached garage. I was just going to lay in one PVC pipe for the 120V
15A
> 3 wires, but somebody suggested that I plan for an EV charging station.
I'm thinking of laying in two pipes, a 3/4" with the 120V 3 wire 12GA
THHN
> and another 3/4 inch that would be able to carry up to 3 THHN wires @ 6
GA
> in the future, (I'd just put in a pull cord). I presume that I will not
be
> getting 3 Phase 480 to my house in the country. So right now I have 240
200Amp service to the house.
>
> I looked up some of the codes for EV charging stations at the Beaverton
Library a few weeks ago but I didn't study enough.
>
> I'm thinking that there is probably more to this planning, so before I bury
> the pipes I'd like to know that I've got my bases covered.
>
> Thanks,
> Gene Fifield
>
>
>
> _______________________________________________
> Oeva-list mailing list
> Oeva-list at oeva.org
> http://www.rdrop.com/mailman/listinfo/oeva-list
>