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<div class="moz-cite-prefix">The ones Carl linked to looked decent,
Nylon 66. I definitely will slam the Home Depot "Black UV
resistant" ones. <br>
You can tell just looking at them they're cheap, the plastic is
dull and brownish. I just returned a whole big bag of them, as we
had 25% failure during an install. I got some that are working
much better from Fastenal.<br>
T&B are definitely decent. <br>
Again I have not done scientific testing comparing different
brands long term. Its hard for me to know what zip ties we used 5
years ago, to tell which ones are failing. Definitely the Homey
Depot ones look and act like they are about 5 yrs old right out of
the bag though.<br>
<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
On 4/25/2013 9:45 PM, frenergy wrote:<br>
</div>
<blockquote cite="mid:FCD6D943551E4EA0A0823DBD57ACA1DE@D8XG8YH1"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
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<div>Jason is the only one that's mentioned brands of zip ties.
Holy Smokes all the conversation seems be discussing black
plastic zip ties like they are all the same. I found some T
& B black zip ties (Grainger, I think) that make the ones in
Home Despot look like skinny tissue paper. If you look for
"Heavy Duty", you can choose from tensile strengths, widths,
thickness, UV resistance, temperature, made in USA (or not)....
just a thought.</div>
<div> </div>
<div>Bill</div>
<div> </div>
<div><img style="WIDTH: 178px; HEIGHT: 73px" alt=""
src="cid:part1.09090107.01020304@solarray.com" height="60"
hspace="0" width="167" align="bottom" border="0"></div>
<blockquote style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px;
MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT:
0px">
<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color:
black"><b>From:</b> <a moz-do-not-send="true"
title="ray@solarray.com" href="mailto:ray@solarray.com">Ray
Walters</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a
moz-do-not-send="true"
title="re-wrenches@lists.re-wrenches.org"
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</a>
</div>
<div style="FONT: 10pt arial"><b>Sent:</b> Thursday, April 25,
2013 12:23 PM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> Re: [RE-wrenches]
Stainless Steel Cable Ties</div>
<div><br>
</div>
<div class="moz-cite-prefix">Terrible. I've got a file of pics
like that, and the wires can grab hold of something while the
tracker rotates, and rip a j box right off the back of the
module. <br>
Around here, the white zip ties don't even last long enough
just sitting in the truck to install without breaking. <br>
<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
On 4/25/2013 11:19 AM, August Goers wrote:<br>
</div>
<blockquote
cite="mid:ac79c26849102bd45ad10f00f0587d83@mail.gmail.com"
type="cite">
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<div class="WordSection1">
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Ray,</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'"></span> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Your
points all seem good. And I echo the other comments that
white non-UV zip ties should never be used. I bumped
into a tracker installation a few weeks ago out in the
Fresno area with very poor wire management! See attached
pic - I have no idea who installed the system or when.
It looks like the wire management was never any good in
the first place although if you zoom in you'll see
traces of a few white zip ties here and there that seem
to be falling apart. </span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'"></span> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'">We've
managed to get our rooftop installations to be
completely managed with stainless s-clips and then maybe
just a couple black plastic zip ties in critical
locations. So far so good. A lot of it just goes back to
good craftsmanship and running the PV wire in strategic
locations so it's mostly supported by channel or rail. A
tracking system is a completely different story where
the wires will be moving as the system tracks. Plastic
zip ties clearly don't seem like a good idea for
tracking applications.</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'"></span> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Best,</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'"></span> </p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'">August</span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 11pt; COLOR:
#1f497d; FONT-FAMILY: 'Calibri','sans-serif'"></span> </p>
<div>
<div style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in;
BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in;
PADDING-BOTTOM: 0in; BORDER-LEFT: medium none;
PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt;
COLOR: windowtext; FONT-FAMILY:
'Tahoma','sans-serif'">From:</span></b><span
style="FONT-SIZE: 10pt; COLOR: windowtext;
FONT-FAMILY: 'Tahoma','sans-serif'"> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Ray Walters<br>
<b>Sent:</b> Thursday, April 25, 2013 9:30 AM<br>
<b>To:</b> Solar Energy Solutions; RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Stainless Steel
Cable Ties</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">Black UV resistant ties only last a
few years at altitude in New Mexico and Colorado. UV is
brutal, and causes PVC conduit to discolor within 2
years. The zips will actually hold for 10+ years, but
aren't really strong. I've come back on my own work,
and just yanked on them, and popped them right off.<br>
They just get very brittle. If on a tracker that is
constantly pulling on them, they'll be trash on the
ground after less than 5 years. I use wire loom clamps
with rubber insulators in those cases, and then the zip
ties just hold the bundle of wires together, but aren't
actually securing the wire to the structure.<br>
I looked into this recently for a large PV installation
company and I found that Nylon 6.6 is probably the best,
but the specified design life of the zip when exposed to
UV was 6 to 10 years. We found a nylon zip rated to
over 15 years, but it was special order and cost
something like $2/ ea (cough, cough)<br>
I like the idea of SS ties, but they are not the same as
the SS clips as mentioned. The clips have curved edges
that won't cut into the cables. USE wire actually is
pretty easy to cut into, and I've seen a few shorts due
to metal cutting into it. ( module edges, romex type
connectors, etc) I would wrap the wire with a thick
electrical tape before zip tieing with SS ties. There is
a heavy mil pipe wrap tape (UV and underground rated)
that plumbers use on gas lines. <br>
<br>
</p>
<pre>R.Ray Walters</pre>
<pre>CTO, Solarray, Inc</pre>
<pre>Nabcep Certified PV Installer, </pre>
<pre>Licensed Master Electrician</pre>
<pre>Solar Design Engineer</pre>
<pre>303 505-8760</pre>
<p class="MsoNormal">On 4/25/2013 9:48 AM, Solar Energy
Solutions wrote:</p>
</div>
<blockquote style="MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt">
<div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'">We have
used black cable ties since 1987 to strap sensor
wire to PVC pipe for our solar pool heating
systems. I was just at a system we installed in
1989 mounted on an East facing roof yesterday.
The exposed 20g sensor wire still had intact and
plyable sheilding and the black cable ties still
firmly attached and not brittle. We have other
similiar scenes with systems mounted on South
facing roof were the black cable ties are still in
tact under full solar exposure... for Portland
Oregon. Yanking on some of these cable ties
sometimes break the ancient tie. But, more often
than not, as yesterday, we have to break out our
wire cutters to accomplish this task.</span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span> </p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Thus, I
gotta think that black cable ties under a PV array
which are not exposed to any of the heat or sun we
usually subject them to... are going to last an
even longer time. </span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span> </p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span> </p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><b><span
style="FONT-FAMILY: 'Arial','sans-serif'">Andrew
Koyaanisqatsi</span></b><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'">President</span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><b><span
style="FONT-FAMILY: 'Arial','sans-serif'">Solar
Energy Solutions, Inc.</span></b><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Since
1987,</span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Moving
Portland and Beyond </span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'">to an
Environmentally Sustainable Future.</span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><b><span
style="FONT-FAMILY: 'Arial','sans-serif'">503-238-4502</span></b><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><b><span
style="FONT-FAMILY: 'System','sans-serif'"><a
href="http://www.solarenergyoregon.com/"
target="_blank" moz-do-not-send="true">http://www.solarenergyoregon.com/</a>
</span></b><span style="FONT-FAMILY:
'Arial','sans-serif'"></span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span> </p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><b><span
style="FONT-FAMILY: 'Comic Sans MS'">"Better
one's House too little one day</span></b><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><b><span
style="FONT-FAMILY: 'Comic Sans MS'">than too
big all the Year after."</span></b><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'"> </span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><span
style="FONT-FAMILY: 'Arial','sans-serif'"></span> </p>
</div>
<div>
<div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><b><span
style="FONT-SIZE: 10pt; FONT-FAMILY:
'Arial','sans-serif'">From:</span></b><span
style="FONT-SIZE: 10pt; FONT-FAMILY:
'Arial','sans-serif'"> Chris Mason <a
href="mailto:cometenergysystems@gmail.com"
moz-do-not-send="true"><cometenergysystems@gmail.com></a><br>
<b>To:</b> RE-wrenches <a
href="mailto:re-wrenches@lists.re-wrenches.org"
moz-do-not-send="true"><re-wrenches@lists.re-wrenches.org></a>
<br>
<b>Sent:</b> Thursday, April 25, 2013 8:12 AM<br>
<b>Subject:</b> Re: [RE-wrenches] Stainless
Steel Cable Ties</span></p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white"><br>
<br>
</p>
<div id="yiv2031156226">
<div>
<p class="MsoNormal" style="BACKGROUND: white">Make
sure you use black cable ties, the white
ones fail in UV from sunlight.</p>
</div>
<div>
<p class="MsoNormal" style="BACKGROUND: white;
MARGIN-BOTTOM: 12pt"> </p>
<div>
<p class="MsoNormal" style="BACKGROUND:
white">On Thu, Apr 25, 2013 at 11:06 AM,
August Goers <<a
href="mailto:august@luminalt.com"
target="_blank" moz-do-not-send="true">august@luminalt.com</a>>
wrote:<br>
<br>
</p>
<div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">I too share the concern
about standard plastic zip ties.
However, I started in the industry
in 1997 and have yet to see zip
ties that are falling apart. Does
anyone on the list have firsthand
experience with failed plastic zip
ties?</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"></span> </p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">Best,</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"></span> </p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">August</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"></span> </p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"></span> </p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">August Goers</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"></span> </p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">Luminalt Energy
Corporation</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">1320 Potrero Avenue</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">San Francisco, CA 94110</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">m: <span
class="MsoHyperlink">415.559.1525</span></span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">o: <span
class="MsoHyperlink">415.641.4000</span></span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"><a
href="mailto:august@luminalt.com"
target="_blank"
moz-do-not-send="true">august@luminalt.com</a></span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"></span> </p>
</div>
<div>
<div style="BORDER-RIGHT: medium none;
PADDING-RIGHT: 0in; BORDER-TOP:
windowtext 1pt solid; PADDING-LEFT:
0in; PADDING-BOTTOM: 0in;
BORDER-LEFT: medium none;
PADDING-TOP: 3pt; BORDER-BOTTOM:
medium none">
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><b><span
style="FONT-SIZE: 10pt">From:</span></b><span
style="FONT-SIZE: 10pt"> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank"
moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank"
moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Solarguy</span></p>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><br>
<b>Sent:</b> Thursday, April
25, 2013 7:08 AM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re:
[RE-wrenches] Stainless Steel
Cable Ties</p>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"> </p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 14pt; COLOR:
#1f497d">We have used 8” flat
SS ties for years and I have
no concern about the wear on
the conductor insulation. They
are long enough to circle a
standard Unirac rail and
several wires leaving 1” or so
tag end. Needle nose pliers
work to twist the end and snug
down the tie as tight as
you’re comfortable with. The
metal tie, once bent around
the corners cannot stretch any
tighter, unlike nylon,
regardless of how tightly you
twist the pliers. As for the
edges, quality ties are not
sharp. Or cheap.</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"></span> </p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">Jim Duncan</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">North Texas Renewable
Energy Inc</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d"><a
href="http://www.ntrei.com/"
target="_blank"
moz-do-not-send="true">http://www.ntrei.com/</a>
</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">NABCEP PV 031310-57</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
style="FONT-SIZE: 11pt; COLOR:
#1f497d">TECL-27398</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"><span
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<p class="MsoNormal"
style="BACKGROUND: white"><b><span
style="FONT-SIZE: 14pt">From:</span></b><span
style="FONT-SIZE: 14pt"> <a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank"
moz-do-not-send="true">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank"
moz-do-not-send="true">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Jason
Szumlanski<br>
<b>Sent:</b> Thursday, April
25, 2013 8:08 AM<br>
<b>To:</b> RE-wrenches</span><span
style="FONT-SIZE: 10pt"><br>
<b>Subject:</b> Re:
[RE-wrenches] Stainless Steel
Cable Ties</span></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"> </p>
</div>
<div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white">There
was a recent thread about
wire management. Heyco
SunBundler ties have a vinyl
coating. I recommended the
clips from PV Racking that
are stainless steel coated
in rubber. I've had the same
concern, and both of these
seem like good solutions to
me.</p>
</div>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white"> </p>
</div>
<div>
<div>
<div style="MARGIN-BOTTOM:
6pt">
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><b><span
style="FONT-SIZE:
10pt; COLOR: gray">Jason
Szumlanski</span></b><i><span
style="FONT-SIZE:
10pt; COLOR: gray"> </span></i></p>
</div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><i><span
style="FONT-SIZE:
10pt; COLOR: gray">Fafco
Solar</span></i><span
style="FONT-SIZE: 8pt;
COLOR: gray"> </span></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div style="MARGIN-BOTTOM: 12pt">
<p class="MsoNormal"
style="BACKGROUND: white"> </p>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND: white">On
Thu, Apr 25, 2013 at 1:20
AM, Benn Kilburn - DayStar
Renewable Energy <<a
href="mailto:benn@daystarsolar.ca"
target="_blank"
moz-do-not-send="true">benn@daystarsolar.ca</a>>
wrote:</p>
</div>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">Wrenches,</span></p>
</div>
</div>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">I searched the
archives, but came up
with nothing on this….</span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt"></span> </p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">I have found a
good supplier for
reasonably priced
stainless steel cable
ties and have been
using them in place of
black nylon cable ties
for supporting cables,
PV wires and
micro-inverter wires
to the mounting rails
and such. I feel
better knowing the
wires under the array
are supported this way
rather than with
plastic/nylon cable
ties, for which I
tried but cannot get a
manufacturer to
guarantee will last
20+yrs.</span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt"></span> </p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">A colleague is
questioning this
method (SS ties) with
the concern that over
time the (albeit
small) movement in the
wires and/or
expansion/contraction
of the rails could
result in the
stainless steel cable
ties cutting thru the
wire's insulation and
then…..</span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">I have heard
this concern before
from others as well.</span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt"></span> </p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">The way I see
it is that the very
popular stainless
steel "S" cable clips
that hold wires to
module frames have
comparable equal sharp
edges as well and
would pose the same
risk, but there
doesn't seem to be any
concern there.</span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt"></span> </p>
</div>
</div>
<div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">I am
wondering who else
is using SS ties in
place of nylon ones,
and if you are
taking additional
steps to protect the
wire's insulation
from the SS ties?</span></p>
</div>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">Common sense
abides, meaning don't
wrap a wire around the
SS ties so that the
wire has tension on
the sharp edge of the
tie. Flat edge
contact with the wire
only, the same way
that you wouldn't run
a wire across/around a
sharp cut edge of a
rail or anything else.</span></p>
</div>
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<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt"></span> </p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">Thanks,</span></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="BACKGROUND:
white"><span
style="FONT-SIZE:
10.5pt">benn</span></p>
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