[RE-wrenches] Stainless Steel Cable Ties

Chris Mason cometenergysystems at gmail.com
Thu Apr 25 08:11:54 PDT 2013


Where do you get them and who makes them?


On Thu, Apr 25, 2013 at 10:07 AM, Solarguy <ntrei at 1scom.net> wrote:

> 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.****
>
> ** **
>
> Jim Duncan****
>
> North Texas Renewable Energy Inc****
>
> www.ntrei.com ****
>
> NABCEP PV 031310-57****
>
> TECL-27398****
>
> ntrei at 1scom.net ****
>
> 817.917.0527****
>
> [image: NABCEP Logo]****
>
> ** **
>
> ** **
>
> ** **
>
> *From:* re-wrenches-bounces at lists.re-wrenches.org [mailto:
> re-wrenches-bounces at lists.re-wrenches.org] *On Behalf Of *Jason Szumlanski
> *Sent:* Thursday, April 25, 2013 8:08 AM
> *To:* RE-wrenches
> *Subject:* Re: [RE-wrenches] Stainless Steel Cable Ties****
>
> ** **
>
> 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.****
>
> ** **
>
> *Jason Szumlanski** *****
>
> *Fafco Solar* ****
>
> ** **
>
> On Thu, Apr 25, 2013 at 1:20 AM, Benn Kilburn - DayStar Renewable Energy <
> benn at daystarsolar.ca> wrote:****
>
> Wrenches,****
>
> I searched the archives, but came up with nothing on this….****
>
> ** **
>
> 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.****
>
> ** **
>
> 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…..****
>
> I have heard this concern before from others as well.****
>
> ** **
>
> 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.****
>
> ** **
>
> 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?****
>
> 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.****
>
> ** **
>
> Thanks,****
>
> benn****
>
>
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-- 
Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
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