becoming an inter-tie system [RE-wrenches]

[jay peltz]

Hi All,

APC used to carry a box made for the GFI.

#53-531-167

You can also get it with an additional plate so that you can install
standard CD ( smaller style)Heinimen breakers.

If they don't have it I know that it was made from Two Seas, they might
have some or make them.  They were powder coated white, worked well.

Jay

Peltz Power
Redway CA

"Bob-O Schultze, Electron Connection" wrote:

> Hiya Larry,
> Ah, the DC GFP! A device invented to fill a requirement written to
> correct a situation for which there was never a problem in the first
> place!
> Trace has the only one I know about. Roll your own can. I use them in
> 48V systems every time (which ain't often because I try like hell to
> talk folks out of putting PVs on roofs, but sometimes you gotta) In
> 24V systems I voice my opinions to the client and give them the
> choice knowing that they may have to pay me to install one later on
> IF the inspector requires it. What's the difference? Lifeform
> protection. There are no recorded instances of folks getting
> electrocuted by voltages less than 42VDC. Above that could, under the
> worst case scenario, potentially zap someone.
> Best, bob-O
>
> >Wrenches, I have a system on a customers house that consists of 4
> >SP75's roof mounted, a 4024 with a DC 250 disconnect, a C-40 charge
> >controller and 8 T-105's.  This is a grid connected house and we set
> >up a separate subpanel for the loads that run off the 4024.  The
> >grid feeds AC1 and acts as the back up.  Therer is no generator on
> >this system.  This system was always intended to grow as the
> >customers budget could afford.  Now we are adding 12 more SP75's on
> >the roof and they are going to inter-tie with the grid.  We will add
> >an outside disconnect to comply with requirements.  The question is
> >about GFI protection for the roof mounted array.  What has anyone
> >been doing to provide for GFI protection for roof mounted arrays?
> >and where in the control room equipment has anyone mounted the GFI
> >protection?  There is a 60 amp DC breaker mounted in the DC250 from
> >the array on the way to the C-40
> >Thanks for any feedback
> >
> >Larry Brown
> >Sun Mountain
>
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Hosted by Home Power magazine: 
 www.homepower.com

For info contact list moderator by email:
 michael.welch at homepower.com

____________________________________________________________
T O P I C A  -- Learn More. Surf Less. 
Newsletters, Tips and Discussions on Topics You Choose.
http://www.topica.com/partner/tag01