[RE-wrenches] #10 THWN-2

[Phil Undercuffler]

Marco,

I found the same situation as what David mentions -- when we were doing a
high profile job that was going to be inspected by a certain someone from
Las Cruces, all the wire available from local suppliers was only physically
marked as THHN / THWN, but when we dug a little deeper and found the actual
spec sheets from the manufacturer we were able to determine that the wire
actually was rated as THWN-2 (plus a whole alphabet soup worth of additional
listings), although it wasn't marked as such.  Have the vendor pull up the
spec sheet on the wire brands they typically carry, and keep a couple copies
in your "for the inspector" file.

Phil Undercuffler



On Thu, Jul 22, 2010 at 7:33 PM, David Brearley <
david.brearley at solarprofessional.com> wrote:

>  Marco,
>
> The #10 THWN wire that your local suppliers carry may be cross-listed as
> THWN-2. My understanding is that it is not uncommon for smaller gauge wire
> to carry more listings than are printed on its insulation. (If that’s not
> true, we’ll find out shortly from someone on the list.) If your local
> supplier can’t confirm this cross-listing for you, I’d try tracing back to
> ask their supplier or the manufacturer.
>
> David Brearley, Senior Technical Editor
> *SolarPro* magazine
>
> On 7/23/10 12:52 AM, "Marco Mangelsdorf" <marco at pvthawaii.com> wrote:
>
> Finding that wire in these here parts is pretty much impossible.
>
> Can any of my CA. brethren/sistren provide me any leads on wholesalers in
> either northern or southern CA. that carry #10 THWN-2 wire?
>
> Thanks,
> marco
>
>
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