] *On Behalf Of *Dave Click
*Sent:* Wednesday, September 18, 2013 5:38 AM
*To:* re-wrenches@lists.re-wrenches.org
*Subject:* Re: [RE-wrenches] GEC sizing for a high amp, low voltage PV
system with microinverters
** **
I think Gary may be overthinking this. If the micro-inverters have
I think Gary may be overthinking this. If the micro-inverters have a GEC
lug then you'll need to run a GEC.
If you run your GEC to a ground rod, then you don't need to use one
larger than #6 per 250.166(C). (note also (D) and (E) but they're less
useful to you here)
/
Commentary:/
It makes
*Subject:* Re: [RE-wrenches] GEC sizing for a high amp, low voltage PV
system with microinverters
I think Gary may be overthinking this. If the micro-inverters have a GEC
lug then you'll need to run a GEC.
If you run your GEC to a ground rod, then you don't need to use one larger
than #6 per
...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dave Click
Sent: Wednesday, September 18, 2013 5:38 AM
To: re-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] GEC sizing for a high amp, low voltage PV system
with microinverters
I think
-wrenches.org
Subject: Re: [RE-wrenches] GEC sizing for a high amp, low voltage PV system
with microinverters
I think Gary may be overthinking this. If the micro-inverters have a GEC lug
then you'll need to run a GEC.
If you run your GEC to a ground rod, then you don't need to use one larger
] GEC sizing for a high amp, low voltage PV system
with microinverters
Hi Bill and wrenches,
To clarify, our new Enphase M250 microinverter does not have a grounding
terminal. The grounding of the M250 will be provided through the Engage
cable. We only have a hole in the lid, in the rare case
amp, low voltage PV
system with microinverters
** **
Hi Bill and wrenches,
To clarify, our new Enphase M250 microinverter does not have a grounding
terminal. The grounding of the M250 will be provided through the Engage
cable. We only have a hole in the lid, in the rare case
To: 'RE-wrenches'
Sent: Wednesday, September 18, 2013 2:42 PM
Subject: Re: [RE-wrenches] GEC sizing for a high amp,low voltage PV
system with microinverters
Nick,
Thanks for the clarification—it is a mysterious threaded hole….
Bill.
From: re
We will be installing a 40KW grid-tied PV system that uses PV modules wired in
parallel as per the module manufacturer -- so it's a high amperage, low voltage
system on the DC side. 2 branches of about 3KW of parallel wired modules each
come together onto a DC bus. The DC branch conductors are
Charlie:
The answer depends on whether the "system" (modules and
micro-inverters) is "grounded" or "ungrounded". I think you are
describing a "grounded" system, but it's not totally clear based
on your issue description.
If the micro-inverter
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