[RE-wrenches] Line Side Feed In and Disconnects

Wed Mar 11 07:55:57 PDT 2009

Wrenches,

They are requiring us to install two service disco's. One for the PV (between the PV and the FIT (payment) meter) and one for the house (between the distribution panel and the standard utility (billing) meter). As Darryl stated, the reason is so that they are grouped together. They said it did not necessarily matter wether or not they were grouped inside or outside, so long as they are grouped. 
We normally install (batteryless) grid tie systems outside with discos within 10' of the utility meter. So as I see it, we must either install the inverter and PV disconnect inside next to the distribution panel, or install an additional disco outside between the house panel and the utility meter, next to the inveter, AC disconnect and FIT meter.

Wayne Irwin, President

Pure Energy Solar International Inc. 

Lic # CVC56695 

Wayne at PureEnergySolar.net 

http://pureenergysolar.net 

> Date: Tue, 10 Mar 2009 19:00:20 -0700
> From: daryl_solar at yahoo.com
> To: re-wrenches at lists.re-wrenches.org
> Subject: Re: [RE-wrenches] Line Side Feed In and Disconnects
> 
> 
> I hope I can help.  If he installs ahead of the meter (line side install) he is installing a new service.  because of the high short current rating of the Grid, he must use a "Service Rated Disconnect" If you install a new service its disconnect must be grouped with the other disconnect.  If the new disconnect can be placed with the existing disconnect this should satisfy the code, if the new disconnect is outside, inverter outside for example he needs to add a new disconnect to the old service so that they are both grouped together.  
> Darryl 
> 
> 
> --- On Tue, 3/10/09, Joel Davidson <joel.davidson at sbcglobal.net> wrote:
> 
> > From: Joel Davidson <joel.davidson at sbcglobal.net>
> > Subject: Re: [RE-wrenches] Line Side Feed In and Disconnects
> > To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> > Date: Tuesday, March 10, 2009, 8:33 PM
> > Hello Wayne,
> > 
> > Correct me if I am misunderstanding you. You have had to
> > install an AC disco between the inverter and the service
> > panel backfeed breaker. Now you have to install another AC
> > disco between the first AC disco and the service panel. Huh?
> > 
> > Joel Davidson
> > 
> >   ----- Original Message ----- 
> >   From: Wayne Irwin 
> >   To: re-wrenches at lists.re-wrenches.org 
> >   Sent: Monday, March 09, 2009 3:40 PM
> >   Subject: [RE-wrenches] Line Side Feed In and Disconnects
> > 
> > 
> >   Hello Wrenches,
> > 
> >   Here in Gainesville, Fla. we have recently adopted a Feed
> > In Tariff. 
> >   So, now we are supposed to directly feed the line side of
> > the utility meter (essentially a new service). No big deal. 
> >   As usual we use an AC disco between the inverter and the
> > grid. However, the permit department is requiring that we
> > install and additional disco between the existing service
> > feed and the distribution panel to group all disco's in
> > the same location. This especially adds an additional
> > expense when dealing with 3 phase systems as well as the
> > raises the question, is this really the National Electrical
> > Code or just an interpretation? Your thoughts?
> > 
> >   Wayne Irwin, President
> >   Pure Energy Solar International Inc. 
> >   Lic # CVC56695 
> > 
> > 
> > 
> > 
> > 
> > ------------------------------------------------------------------------------
> >   Date: Mon, 9 Mar 2009 18:20:57 -0400
> >   From: reellison at gmail.com
> >   To: re-wrenches at lists.re-wrenches.org
> >   Subject: Re: [RE-wrenches] Small Torque Wrench
> > 
> > 
> >   I got mine from "the knife and tool store"
> > http://myworld.ebay.com/don19470/ on E bay. nice tool,
> > adjustable 10 - 50 In Oz and he has others, just get the
> > adapter that lets you use 1/4" drive bits and your good
> > to go. It is a german tool and i use it on all breaker
> > connections as well as others.
> > 
> >   Later,
> >   Bob
> > 
> > 
> >   On Mon, Mar 9, 2009 at 12:10 PM, Peter Parrish
> > <peter.parrish at calsolareng.com> wrote:
> > 
> >     We have a great torque wrench for snugging down module
> > clamps, Sharp SRS bolts, etc. What do folks use to insure
> > that wire terminals are torqued to spec? We’re talking 1.1
> > to 3.3 N-m (10-30 in-lbs). I’m imagining something compact
> > like an over-sized screwdriver. 
> >      
> >     - Peter
> > 
> >     Peter T. Parrish, President
> >     California Solar Engineering, Inc.
> >     820 Cynthia Ave., Los Angeles, CA 90065
> >     Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
> >     CA Lic. 854779, NABCEP Cert. 031806-26
> >     peter.parrish at calsolareng.com 
> > 
> > 
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