AC/DC in Same Conduit? [RE-wrenches]

[Bob Maynard, Energy Outfitters]

Todd,
I've run e-meter 150' on 16 gauge, but the trick is to double up conductors
on the battery negative.  I had about 1/10 volt drop on the voltage display,
but all other functions worked perfectly.  As for sharing conduit with the
AC, sounds scary to me, from a safety standpoint and inductive ac
interference!  I wouldn't go there but if you do, run sheilded cable, ground
it and hope for the best.
Regards,
Bob Maynard
Energy Outfitters
800-GO-SOLAR(800-467-6527)

-----Original Message-----
From: Todd Cory, Mt. Shasta Energy Services [mailto:toddcory at jps.net]
Sent: Thursday, July 11, 2002 1:45 PM
To: RE-wrenches at topica.com
Subject: Re: AC/DC in Same Conduit? [RE-wrenches]


I'd like to run e-meter wiring in the same conduit as the inverter output to
the
house wires (120')... mind you that adding another conduit would involve
cutting
a trench through a cement driveway... sigh. That is why I am tempted to "do
it
anyway" especially since no inspector will see this job and nit pick at
that.

Speaking of which, do any wrenches know what gauge wire I am going to have
to
run that distance to get the e-meter to work. I remember a conversation
about
this way back, but the details are long gone.

Todd


Bill Brooks wrote:

> David,
>
> The only concern I would have with a 500' run of DC and AC is the
potential
> for harmonic coupling of the AC with DC circuit. I've never tried it so I
> can't say it would even happen, but it seems questionable at best and it
> seems that it could cause the inverter to operate in a funky manner. The
> other option would be to put the inverter out at the array so there is
only
> AC in the conduit. Would this work for you. I know the DC side is higher
> voltage and would be better to run the longer distance, but this seems
like
> an exception to that rule.
>
> Bill.

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