Re: [RE-wrenches] #10 THWN-2

-wrenches] #10 THWN-2 To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Friday, July 23, 2010, 12:56 AM 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

[RE-wrenches] #10 THWN-2

We went through a similar problem with some beach communities here in SoCal. Because of the high humidity (all winter and summer mornings) they wanted THWN-2 for all conduit runs (as well as PVC instead of EMT). At first we were charged a premium for THWN-2 compared to THHN. But then we found a

Re: [RE-wrenches] #10 THWN-2

I have specified THWN-2 for years, but occasionally will not be able to source it! Sent from my iPhone On Jul 23, 2010, at 11:37 AM, Peter Parrish peter.parr...@calsolareng.com wrote: We went through a similar problem with some beach communities here in SoCal. Because of the high humidity

Re: [RE-wrenches] #10 THWN-2

I'm sorry to broadcast my ignorance, but: Could someone explain to me the significance of the -2 marking? Reply off-list if you wish to save bandwidth...but other List members may also be wondering... Thanks, Mick Abraham, Proprietor www.abrahamsolar.com Voice: 970-731-4675 On Fri, Jul 23,

Re: [RE-wrenches] #10 THWN-2

-2 indicates that the insulation is rated for hot wet; that is that it is rated for 90C and wet conditions. See NEC Table 310.13(A). We also use Encore Wire. The sticker on the spool has THHN in big print, but then in small print below it says Type MTW or THHN or THWN-2. The insulation

Re: [RE-wrenches] #10 THWN-2

Mick, THWN-2 is 90°C rated per Table 310.16. This is key for conductors in conduit on a roof. On a roof in full sun ambient temperatures are such that a 75°C rated conductor will have a severely diminished allowable ampacity, if any allowable ampacity. Jollily, David On 7/23/10 11:52 AM, Mick

Re: [RE-wrenches] #10 THWN-2

9:52 AM To: RE-wrenches Subject: Re: [RE-wrenches] #10 THWN-2 I'm sorry to broadcast my ignorance, but: Could someone explain to me the significance of the -2 marking? Reply off-list if you wish to save bandwidth...but other List members may also be wondering...  Thanks,  Mick Abraham

Re: [RE-wrenches] #10 THWN-2

Mick, -2 means 90 degrees C rather than 75. THWN-2 thus means that it is wet-rated at 90C. That is generally considered Code for arrays, such as if it is run in NM flex conduit to a traditional module j-box. The j-box area may be considered to be able to get hot enough

Re: [RE-wrenches] #10 THWN-2

-258-8885   From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar Sent: Friday, July 23, 2010 10:04 AM To: RE-wrenches Subject: Re: [RE-wrenches] #10 THWN-2 Mick, -2 means 90 degrees C

Re: [RE-wrenches] #10 THWN-2

-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter Parrish Sent: Friday, July 23, 2010 11:28 AM To: al...@positiveenergysolar.com; 'RE-wrenches' Subject: Re: [RE-wrenches] #10 THWN-2 Just a minor point: the dash-two appendage brings a wet-rated wire

Re: [RE-wrenches] #10 THWN-2

- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Ryan Mayfield Sent: Friday, July 23, 2010 3:31 PM To: 'RE-wrenches' Subject: Re: [RE-wrenches] #10 THWN-2 Peter, There was a change in the 2008 NEC (I know - CA is just getting

[RE-wrenches] #10 THWN-2

I've been looking hard to see what manufacturers produce this kinda elusive #10 THHN/THWN-2 wire. United Copper Industries (Texas) does. I have a handy spec sheet from them that I can email anyone who's interested. marco ___ List sponsored by Home

[RE-wrenches] #10 THWN-2

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 ___ List sponsored by Home

Re: [RE-wrenches] #10 THWN-2

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 that¹s not true, we¹ll find out shortly from someone on the list.) If your

Re: [RE-wrenches] #10 THWN-2

THWN-2 smaller than #8 is hard to find but I hear http://www.encorewire.com/site_flash/index.html makes it and that Graybar sells it. When I asked Southwire about it about two years ago, I got a collective huh? Original Message Subject: Re: [RE-wrenches] #10 THWN-2 From

Re: [RE-wrenches] #10 THWN-2

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