So now I have to stock coloured PV Wire?
On Tue, Jul 2, 2013 at 6:49 PM, jay peltz j...@asis.com wrote:
HI Ray,
I agree and think that at least high voltage DC should have its own color
code.
Labels go away, but wire colors are forever.
thanks,
jay
peltz power
On Jul 2, 2013, at
It is my understanding that 2014 NEC will require red-positive,
black-negative, white-grounded conductor for all DC wiring. Remarking
still allowed for larger than #6. I have also heard that some modules will
soon come with one black and one white lead.
--
Shine On!
Kris Schmid
Legacy
, July 01, 2013 6:46 PM
To: re-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] double insulated wire
Ray,
I really DO get it. But, after 20 years of mostly working with AC, almost
always terminating black conductors to the left of red conductors: black -
red, black - red, black - red. I
Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Richard L
Ratico
Sent: Monday, July 01, 2013 6:46 PM
To: re-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] double insulated wire
Ray,
I really DO get
Hi Dick;
What you're suggesting is actually something I thought would work too:
having totally odd colors that immediately said DC.
IT really would be the best, because if you go in with a meter set to
read AC, and show no voltage, then get your voltage sniffer out, and it
doesn't beep, you
HI Ray,
I agree and think that at least high voltage DC should have its own color code.
Labels go away, but wire colors are forever.
thanks,
jay
peltz power
On Jul 2, 2013, at 11:15 AM, Ray Walters wrote:
Hi Dick;
What you're suggesting is actually something I thought would work too:
That only works for a negative grounded system.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 6/30/2013 7:48 AM, Chris Mason wrote:
We have standardized on DC markings White negative and Red positive.
Chris
Dick;
I'm not advocating for a color coding system I invented. It is not
dependent on how a wrench's head is wired; its corresponds to how his
meter is wired. This is simply combining NEC compliance with almost
universal common practice (batteries, automotive, forklifts,
multimeters,
Ray,
I really DO get it. But, after 20 years of mostly working with AC, almost always
terminating black conductors to the left of red conductors: black - red, black
-
red, black - red. I don't think it's much of a mental stretch to see how RED
- BLACK might possibly cause some confusion in
Ray,
Conductors can be mislabled regardless of the system used. The accident you
described had nothing to do with conductor color or labeling. It was caused by a
gross violation of sound electrical procedure and plain common sense. Your
electricians failed to check for correct polarity before
Watch out for accountants who become installers. They always thing red
negative and black positive.
David Katz
Sent from my iPhone
On Jun 28, 2013, at 5:40 PM, Ray Walters r...@solarray.com wrote:
Richard, when you use your Fluke 87 to measure Vdc, black is negative,
red is positive. The
I'm kinda confused. With more transformerless inverters on the market
(e.g., SMA and Power-One), it's not clear to me if double insulated wiring
needs to be used all the way from each series string to their respective
inverter.
We've been installing the P1 3-6 kW TL inverters and there's no
] On Behalf Of Marco
Mangelsdorf
Sent: Friday, June 28, 2013 1:10 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] double insulated wire
I'm kinda confused. With more transformerless inverters on the market (e.g.,
SMA and Power-One), it's not clear to me if double insulated wiring needs to be
used
for negative.Most building departments have not pick up on this yet. But they will. Aram
Original Message
Subject: Re: [RE-wrenches] double insulated wire
From: Will White william.wh...@realgoods.com
Date: Fri, June 28, 2013 10:23 am
To: RE-wrenches re-wrenches@lists.re
gets away with it since the GFDI is bonded throught the AC
neutral when in operation.
Jun 2013 07:09:55 -1000
From: Marco Mangelsdorf ma...@pvthawaii.com
To: 'RE-wrenches' re-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches] double insulated wire
Message-ID: 007e01ce7422$519df6e0$f4d9e4a0$@com
On 6/28/2013 11:47 AM,
a...@aramsolar.com wrote:
And of course Red for positive and black for negative.
Most building departments have not pick up on this yet.
But they will.
Aram
Where does "of course Red for
.
And of course Red for positive and black for negative.
Most building departments have not pick up on this yet. But they will.
Aram
Original Message
Subject: Re: [RE-wrenches] double insulated wire
From: Will White william.wh...@realgoods.com
mailto:william.wh
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar
Sent: Friday, June 28, 2013 2:10 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] double insulated wire
On 6/28/2013 11:47 AM, a...@aramsolar.commailto:a...@aramsolar.com wrote:
And of course Red for positive and black
The convention of red for positive and black for negative is not just
automotive. It is also used by all battery based inverter manus, all
battery companies, and all multimeters.
John Wiles also agrees;
red = positive, black = negative for ungrounded systems
red = positive, white = negative
I have also seen the color convention that Ray enumerated becoming the
standard. The one variation (which I like) is to use the following for the
positively grounded legs of a bi-polar system:
Black = negative; GREY = positive
This can help prevent confusion between the two different grounded
Respectfully:
My Fluke 87 does not use this convention. Black is labeled the COMMON terminal,
the red terminal is labeled according to function, not polarity. Battery based
inverter manus. using this convention typically provide BOS enclosures with OCP
for only one inverter conductor. This
Richard, when you use your Fluke 87 to measure Vdc, black is negative,
red is positive. The black is labeled common because the meter can also
be used for current measurements. (I have a Fluke 89)
When you start using black wire for positive, it may be allowed by code,
but there just isn't a
-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dave Click
Sent: Friday, June 28, 2013 11:04 AM
To: re-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] double insulated wire
690.35(D) does not require PV WIRE be used for the whole dc
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