Wallace:
William is correct, a PV System is NOT a SDS.
If you're installing a "TL" or transformerless string inverter, a DC GEC
from the inverter is NOT required, only a properly sized EGC.
With Micro-inverters, if the PV+ or PV- has a ground reference in the
micro-inverter, such as an Enpha
W:
A string inverter does not constitute a separately derived system unless it is
transformer isolated. The recreating of the neutral is what creates an SDS.
Your GEC, if required, stops at the inverter. It is not always required, i.e.
Enphase M250.
William Miller
> On Nov 9, 2013, at 1:53
Wrenches,
On a recent install I've come across a question I would like to get your
thoughts on.
In regards to running a GEC on a "separately derived power system", more
specifically A single phase 600 v residential PV system with a string inverter.
>From my past experience and building from
that live in areas where lightning is rare, so I can stop hating it.
Regards,
-Hans
_
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of R Ray
Walters
Sent: Monday, August 23, 2010 1:55 PM
To: RE-wrenches
Subject: Re: [RE-wr
> I hope this helps clarify it for you.
>
> Matt Lafferty
> gilliga...@gmail.com
>
>
>
> From: re-wrenches-boun...@lists.re-wrenches.org
> [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szrom
> Sent: Monday, August 23, 2010 6:41 AM
> To
nches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szrom
Sent: Monday, August 23, 2010 6:41 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] PV GEC to the same point as the utilityservice
GEC?
Matt,
Thanks for the reply. I should have clarif
e-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Matt Lafferty
Sent: Thursday, August 19, 2010 2:01 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] PV GEC to the same point as the utility service GEC?
Good questions, Jason.
No. Yes
ot;
Matt "I'm no building inspector" Lafferty
_
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szrom
Sent: Thursday, August 19, 2010 7:38 AM
To: re-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches] P
Wrenches,
Questions: Does the PV GEC have to be bonded to the ground electrode system at
the same point as the utility service equipment GEC? Is there a code section to
back this up?
Additional info:
1. The DC side of the inverter is a separately derived system and
therefore needs a GE
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