1. In addition, there's a conflict of signal words for
NEC 110.21(B) Field-Applied Hazard Markings."Where caution, warning, or
danger signs or labels are required by this Code, the labels shall meet the
following requirements ..." In other words, one signal word is DANGER and
the other signal
This is interesting, since the definition of high voltage was changed to
>1000V a few code cycles ago and it is somewhat consistently applied
throughout the NEC at that voltage (except for workspace clearances...er).
It seems this 392.18 label requirement could cause confusion and should be
This is interesting, because we were considering cable trays, too. My
guess is that both requirements would apply. Picky, but I don't see
that 690 exempts the requirements of 392. One is for PV, one is for over
600 v. Some code iteration in the future might have combined language
for PV
Wrenches,
I am curious about the marking requirements for cable trays containing PV
source/output circuits rated over 600 volts, installed on a building:
NEC 392.18(H) requires a permanent, legible warning notice carrying the
wording “DANGER — HIGH VOLTAGE — KEEP AWAY” at least once every 10
Hello wrenches, question about running conductors in cable tray. So we
have our allowance in 690.31(C)(2) for using small PV Wire in cable tray
for PV source and output circuits. I'm trying to determine what adjustment
factor to apply when there are a bunch of small conductors.
392.80(A)(2)(a)
31, 2015 2:56 PM
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Subject: [RE-wrenches] Cable tray
Hello wrenches, question about running conductors in cable tray. So we have
our allowance in 690.31(C)(2) for using small PV Wire in cable tray for PV
source and output circuits. I'm
:
From: John Berdner john.berd...@solaredge.com
Subject: Re: [RE-wrenches] Cable tray
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Date: Sunday, March 31, 2013, 1:08 PM
Dan:
I have to disagree with your statement regarding costs and voltage.
While clearance and creepage distances
, Chris Mason cometenergysyst...@gmail.com wrote:
From: Chris Mason cometenergysyst...@gmail.com
Subject: Re: [RE-wrenches] Cable tray
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Date: Monday, April 1, 2013, 9:23 AM
With regards to 600V costs Vs 1000V costs, once 1000V equipment becomes
.
.. to name a few. Ends up being higher-cost products.
Dan
--- On *Mon, 4/1/13, Chris Mason cometenergysyst...@gmail.com* wrote:
From: Chris Mason cometenergysyst...@gmail.com
Subject: Re: [RE-wrenches] Cable tray
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Date: Monday, April
--- On *Mon, 4/1/13, Chris Mason /cometenergysyst...@gmail.com
mailto:cometenergysyst...@gmail.com/* wrote:
From: Chris Mason cometenergysyst...@gmail.com
mailto:cometenergysyst...@gmail.com
Subject: Re: [RE-wrenches] Cable tray
To: RE-wrenches re-wrenches
As we see more 1000V installations, chances are that 600V rated equipment
will find its way into installations it is not rated for. To avoid problems
and so we don't need two SKUs and lots more inventory, the manufacturers
need to move all their product to 1000V ratings. I suspect it does not cost
dielectric
rating).
This results in more rigorous (consequently more expensive) UL testing. Etc.
All adds up.
Dan
--- On Sun, 3/31/13, Chris Mason cometenergysyst...@gmail.com wrote:
From: Chris Mason cometenergysyst...@gmail.com
Subject: Re: [RE-wrenches] Cable tray
To: RE-wrenches re-wrenches
...@gmail.com
Subject: Re: [RE-wrenches] Cable tray
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Date: Sunday, March 31, 2013, 8:21 AM
As we see more 1000V installations, chances are that 600V rated
equipment will find its way into installations it is not rated
for. To avoid
USA (*Please note of our new address.)
T: 510.498.3200, X 747
M: 530.277.4894
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Exeltech
Sent: Sunday, March 31, 2013 9:10 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
Hello
/31/13, Chris Mason
cometenergysyst...@gmail.comcometenergysyst...@gmail.com
* wrote:
From: Chris Mason cometenergysyst...@gmail.comcometenergysyst...@gmail.com
Subject: Re: [RE-wrenches] Cable tray
To: RE-wrenches
re-wrenches@lists.re-wrenches.orgre-wrenches@lists.re-wrenches.org
Date
specific aspects of the
BOS hardware -- which I addressed.
Regards to all,
Dan Lepinski
Sr. Engineer
Exeltech / Exeltech Solar Products
--- On Sun, 3/31/13, John Berdner john.berd...@solaredge.com wrote:
From: John Berdner john.berd...@solaredge.com
Subject: Re: [RE-wrenches] Cable tray
Hi Bill
I'm with you all the way. I love to do things
Telecomm style. Very clean, safe and better IMHO.
1000v PV wire can be bought at PV cables.com
Cheers
Jay
Peltz Power.
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List sponsored by Home Power magazine
List Address:
mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of
*Allan Sindelar
*Sent:* Wednesday, March 27, 2013 8:51 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Cable tray
Andrew,
We have used #10 USE-2 for about 16 years, and our high-elevation
New Mexico sun
-wrenches
*Subject:* Re: [RE-wrenches] Cable tray
Bill:
I have to disagree with you on this one. We can not abandoned a tried
and true practice just because some practitioners don't do it right. I
don't know how one can justify saying that encapsulating high voltage
conductors in a conduit
: 530.277.4894
** **
*From:* re-wrenches-boun...@lists.re-wrenches.org [mailto:
re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Allan Sindelar
*Sent:* Wednesday, March 27, 2013 8:51 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Cable tray
** **
Andrew,
We have used
hes-boun...@lists.re-wrenches.org]
On Behalf Of William Miller
Sent: Tuesday, March 26, 2013 9:49 PM
To: RE-wrenches
Subject: Re: [RE-
-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller
Sent: Tuesday, March 26, 2013 9:49 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
Bill:
I have to disagree with you on this one. We can not abandoned a tried and
true practice just because some practitioners
rch 26, 2013 9:49 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
Bill:
I have to disagree with you on this one. We can not
abandoned a tried and true practi
] On Behalf Of Allan Sindelar
Sent: Wednesday, March 27, 2013 8:51 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
Andrew,
We have used #10 USE-2 for about 16 years, and our high-elevation New Mexico
sun is quite intense. I have yet to see any degradation exceeding fading
discoloration on any
-wrenches'
Subject: Re: [RE-wrenches] Cable tray
All,
Here is the language that has been accepted into the 2014 NEC:
690.31(C)(2)
(2) Cable Trays. PV source circuits and PV output circuits using
single-conductor cable listed and labeled as Photovoltaic (PV) wire of all
sizes with or without
).
Too bad we are still on the 2008 code cycle here.
Thanks
Glenn Burt
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Bill Brooks
Sent: Monday, March 25, 2013 10:54 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Cable tray
-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Bill Brooks
Sent: Monday, March 25, 2013 10:54 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Cable tray
All,
Here is the language that has been accepted into the 2014 NEC:
690.31(C)(2
I don't understand how it can be permissible to string the PV wire over the
rails, under the modules, and in the rail channels, but not permissible to
put it in purpose made cable trays. Makes no sense.
___
List sponsored by Home Power magazine
List
.
The devil is in the details.
From: David Brearley [mailto:david.brear...@solarprofessional.com]
Sent: Tuesday, March 26, 2013 12:51 PM
To: glenn.b...@glbcc.com; RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
Not at all. Type USE cable was added to the Permitted Uses of Cable Tray
, March 25, 2013 9:30 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
David:
Of course, I understand that you are not saying we can willfully disregard
the Code in anticipation of future clarification. I was just
extrapolating on your idea.
If we want an exception based on a predicted
: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William
Miller
Sent: Tuesday, March 26, 2013 9:49 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
Bill:
I have to disagree with you on this one. We can not abandoned a tried
-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Chris Mason
Sent: Sunday, March 24, 2013 8:24 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
We use Cablofil but at $10/ft, it's OK for the inverter area but for large
roofs, it is expensive.
On Sun, Mar 24, 2013 at 3
: Friday, March 22, 2013 3:08 PM
To: RE-wrenches
Subject: [RE-wrenches] Cable tray
I'm looking for flat roof cable tray system that is cost effective. We
previously used Cablofil and Cablo-port FSL 12 tray but it is very
expensive for our current application due to the size of the roof. We need
** **
*From:* re-wrenches-boun...@lists.re-wrenches.org [mailto:
re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Chris Mason
*Sent:* Friday, March 22, 2013 3:08 PM
*To:* RE-wrenches
*Subject:* [RE-wrenches] Cable tray
** **
I'm looking for flat roof cable tray system that is cost
392.3(B)1
This was also pointed out in a recent article in Solar Pro talking about
Wire Management issues.
From: Chris Mason [mailto:cometenergysyst...@gmail.com]
Sent: Monday, March 25, 2013 6:17 PM
To: glenn.b...@glbcc.com; RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
What part
-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Chris Mason
Sent: Friday, March 22, 2013 3:08 PM
To: RE-wrenches
Subject: [RE-wrenches] Cable tray
I'm looking for flat roof cable tray system that is cost effective. We
previously used
David:
This is great news. Now, whenever I want to do something that is
prohibited by code, I can just say that the Code Making Panel is gonna
correct that pesky code section (insert your problem citation here) any day
now, so I might as well be allowed to do whatever it was I was fixin' to
] *On Behalf Of *Chris Mason
*Sent:* Friday, March 22, 2013 3:08 PM
*To:* RE-wrenches
*Subject:* [RE-wrenches] Cable tray
** **
I'm looking for flat roof cable tray system that is cost effective. We
previously used Cablofil and Cablo-port FSL 12 tray but it is very
expensive for our current
Ouch. I promise I'm not advocating for anything like that. What I may be
missing is the Code reference that says no cable tray on roofs or similar.
There is so much room for improvement in wire management practices, that being
able to use cable tray seems like a step forward. I understand some
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David
Brearley
Sent: Monday, March 25, 2013 6:01 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable tray
Ouch. I promise I'm not advocating for anything like that. What I may be
missing is the Code reference that says no cable tray on roofs
1.4m (4.5’).
I hope this helps. It is a very big deal.
Bill.
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David Brearley
Sent: Monday, March 25, 2013 6:01 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable
David:
Of course, I understand that you are not saying we can willfully disregard
the Code in anticipation of future clarification. I was just extrapolating
on your idea.
If we want an exception based on a predicted update in the code, we are at
the mercy of the AHJ who may or may not be
-wrenches
Subject: Re: [RE-wrenches] Cable tray
David:
Of course, I understand that you are not saying we can willfully disregard
the Code in anticipation of future clarification. I was just extrapolating
on your idea.
If we want an exception based on a predicted update in the code, we
Generation
--
*From:* Chris Mason cometenergysyst...@gmail.com
*To:* RE-wrenches re-wrenches@lists.re-wrenches.org
*Sent:* Friday, March 22, 2013 12:07 PM
*Subject:* [RE-wrenches] Cable tray
I'm looking for flat roof cable tray system that is cost effective. We
Engineer
SEE Systems
1048 Irvine Ave Suite 217
Newport Beach, Ca. 92660
760-403-6810
Building a Better Future For The Next Generation
From: Chris Mason cometenergysyst...@gmail.com
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Sent: Friday, March 22, 2013 12:07 PM
Subject: [RE-wrenches
--
*From:* Chris Mason cometenergysyst...@gmail.com
*To:* RE-wrenches re-wrenches@lists.re-wrenches.org
*Sent:* Friday, March 22, 2013 12:07 PM
*Subject:* [RE-wrenches] Cable tray
I'm looking for flat roof cable tray system that is cost effective. We
previously
: [RE-wrenches] Cable tray
I'm looking for flat roof cable tray system that is cost effective. We
previously used Cablofil and Cablo-port FSL 12 tray but it is very expensive
for our current application due to the size of the roof. We need to install
about 200' of tray and Cablofil galvanized
Larry,
We do have the option of no roof penetrations and that is the course
being taken. We will have 90 source circuits in the array and 5
Jboxes on the roof and these will then be routed to a vertical wall on
the west end of the array. The strings will carry through the wall
horizontally and
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