All Cable and probably other companies can add striping and marking to
any wire you need.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 9/23/2013 10:57 PM, d...@energysolarnow.com wrote:
Marco- You should not transition to THHN wire at all for the DC run.
The PV wire is double insulated for a good reason- the transformerless
inverters are such suckers for a ground fault that they need the extra
protection. That's why the NEC specifies PV wire.
I recently did an installation like you wrote, with a transition at
the j-box. This developed an intermittent ground fault when wet, and
when the P1 inverter failed it was deemed out of warranty. Learn from
my mistake-- use PV wire all the way to the inverter.
That said, does anyone know where to get 1000 volt PV wire in colors
other than red, black, and white?
It would be nice to color code the positive runs like is possible with
colors of THHN.
I'm thinking of buying spools of white and spraying plastic paint on
them for a striped color coding.
Don Barch
Energy Solar
Message: 3
Date: Mon, 23 Sep 2013 09:27:30 -1000
From: "Marco Mangelsdorf" <ma...@pvthawaii.com
<mailto:ma...@pvthawaii.com>>
To: "'RE-wrenches'" <re-wrenches@lists.re-wrenches.org
<mailto:re-wrenches@lists.re-wrenches.org>>
Subject: [RE-wrenches] transformerless inverters and conductor colors
Message-ID: <000001ceb892$f3e41470$dbac3d50$@com>
Content-Type: text/plain; charset="us-ascii"
Hi all,
We're doing more and more installs with TL inverters (SMA and P1).
I'm using double-insulated wire from the array string to the first
enclosure, as in j-box, and then transitioning to standard
THHN/THWN wire.
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