My quick thoughts would be using a sunlight resistant insulated wire, and
stripping the insulation where needed to make the grounding connection. Second
would be to use a tinned copper wire, where I believe eliminates the galvanic
corrosion / dissimilar metals issue, but perhaps not depending o
Folks,
I have a 3 foot "walkway" on a roof pitch and between two separate
arrays, as required.
Is there anything that prevents me from running a conduit between the
two arrays, across the "walkway"?
Thanks,
Mark Frye
___
List sponsored by Redwoo
A question on this thread for you folks. Have you seen or heard of anyone
building a single axis or dual tracker like the old Array Tek AZ 125 ? I
really miss that tracker as it was on a 6 " pipe that I could install by
myself. The 8" is just too hard for me to do at this ripe age.
I could get 2K
Not sure if you heard, but Square D is recalling 30A and 60A disconnects that
were manufactured in the last 4 years. Apparently they can stay energized in
the off position. Over 1 millions units affected, many on PV systems I’m sure.
https://www.cpsc.gov/Recalls/2018/schneider-electric-recalls
Mark-
The 2018 IFC and IRC both state "Pathways shall be located in areas with
minimal obstructions, such as vent pipes, conduit or mechanical
equipment."
It must be permanently marked "WARNING PHOTOVOLTAIC POWER SOURCE" in
accordance with 690.31(G)(3) as well.
Brian Mehalic
NABCEP Certified Sol
Thanks Brian,
I would read this as saying that I CAN run a conduit across the walkway
since it would be only a "minimal obstruction".
MarK
On 4/19/2018 8:34 AM, Brian Mehalic wrote:
Mark-
The 2018 IFC and IRC both state "Pathways shall be located in areas
with minimal obstructions, such a
Our qualifier has always been (from local AHJ’s) just that it’s not high enough
off the deck that it’s a “trip hazard” . . Which for us, just meant that we
would offset bend it down to a minimum height off the deck 3”-4” . .
From: RE-wrenches On Behalf Of Mark
Frye
Sent: Thursday, April
That looks like DPW / Preformed Line Products Power Rail.
Brian Mehalic
NABCEP Certified Solar PV Installation Professional™ R031508-59
520.204.6639
Solar Energy International
http://www.solarenergy.org
SEI Professional Services
http://www.seisolarpros.com
On Thu, Apr 19, 2018 at 12:52 PM, Lo
I have tried to find green #6 USE. #6 thhn & thhnw are not rated for sunlight
as I have been informed. I have seen #6 USE in green offered but on inquiry it
was only available if I purchased 10,000 Lft. When I pass on, I guess they
could wrap me in it, electrify it & drop me in a hole someday d
The good news here is it is not the 600vdc discos:)
> Attached are the details on the recalled units, along with Schneider's
> inspection procedures, care of a Mike Holt email blast.
>
>
> Brian Mehalic
> NABCEP Certified Solar PV Installation Professional⢠R031508-59
> 520.204.6639
>
> Solar En
Dana,
There are probably some others, but you can buy #6 copper use-2 green online by
the foot ($0.64) from
https://www.wireandcableyourway.com/6-awg-xlp-use-2-rhh-rhw-2-building-wire.html
and Platt is selling #4 Al use-2 green for ($0.23)
https://www.platt.com/platt-electric-supply/USE-Type-Alu
Platt was the one who said I needed to order 10,000 LFT.
I have ordered & now received the insulated standoffs from Fastenal and will be
running the #8 bare copper.
As always thanks everyone for your input time & efforts.
---
Would #8 meet code? I thought that exposed ground wire had to be #6 minimum.
Hilton Dier III
Renewable Energy Design
Missisquoi River Hydro LLC
___
List sponsored by Redwood Alliance
List Address: RE-wrenches@lists.re-wrenches.org
Change listserver em
The bare #8 is an EGC for #10 USE PV wire on the tracker to the array mounted
combiner box.
Dana Orzel Great Solar Works, Inc.
C - 208.721.7003 d...@solarwork.com
Idaho
Dana, I understand the need to use #6 in exposed places on the earth. I
have had inspectors require the same wire size that is used to the
battery. I have had them require the same size as the array wiring. I
have never seen them do what they are doing to you so thanks for the
info Be well!
On tracking arrays, I have had both solid and stranded copper ground
wire strain harden and break. The cyclical motion will slowly work away
at coarse cables. I've even seen solid #6 break off on just a tilt
adjustable array. I now use a braided ground strap at least for the rack
to pole grou
Ray I have never (yet) had a wire failure in any of my trackers, l have always
used PVC flex tubing connected at both ends with a long line that at any given
point does not move much. I mainly use zomeworks passive sonhle axes trackers
but have done it the same way with array technologes d
No failures here either, always #10 thhn strands and a few from the old
days (2001) that used marine wire at the pivot point! --Dave
>
>
> Ray I have never (yet) had a wire failure in any of my trackers, l have
> always used PVC flex tubing connected at both ends with a long line that
> at any g
18 matches
Mail list logo
