[RE-wrenches] Enphase and Romex

Fri Oct 26 19:27:45 PDT 2012

So if the Romex is loaded with THHN/THWN (damp/wet rated), and no where 
does the outer covering of the Romex itself get exposed to the wet 
location, that should be sufficient?

Ray Walters

On 10/26/2012 7:45 PM, Glenn Burt wrote:
>
> 300.9 Raceways in Wet Locations Above Grade.
>
> Where raceways are installed in wet locations abovegrade, the interior 
> of these raceways shall be considered to be a wet location. Insulated 
> conductors and cables installed in raceways in wet locations 
> abovegrade shall comply with 310.8(C).
>
> "Section 300.9, new for the 2008 Code and similar to 300.5(B), draws 
> attention to the inside of all raceways and enclosures installed in an 
> abovegrade wet location. The inside of these raceways and enclosures 
> now definitively requires conductors and cables suitable for use in 
> wet locations in accordance with to 310.8." -- Explanatory note
>
> 310.8 Locations.
>
> (C) Wet Locations. Insulated conductors and cables used in wet 
> locations shall comply with one of the following:
>
> (1)          Be moisture-impervious metal-sheathed
>
> (2)          Be types MTW, RHW, RHW-2, TW, THW, THW-2, THHW, THWN, 
> THWN-2, XHHW, XHHW-2, ZW
>
> (3)          Be of a type listed for use in wet locations
>
> *From:*re-wrenches-bounces at lists.re-wrenches.org 
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On Behalf Of *benn 
> kilburn
> *Sent:* Friday, October 26, 2012 2:03 PM
> *To:* RE-wrenches
> *Subject:* Re: [RE-wrenches] Enphase and Romex
>
> Glenn/Jason,
>
> So you wouldn't use romex to feed an exterior outlet on an outside 
> wall, or to any outside lights???
>
> Canadian Electrical Code's (CE Code) definitions...
>
> _wet location_ -a location in which liquids may drip, splash, or flow 
> on or against electrical equipment.
>
> _Damp location_--an exterior or interior location that is normally or 
> periodically subject to condensation of moisture in, on, or, adjacent 
> to electrical equipment an includes partially protected locations 
> under canopies, parquees, roofed open porches, and similar locations.
>
> _Dry location _--a location not normally subject to dampness, but that 
> may include a location subject to temporary dampness as in the case of 
> a building under construction, provided that ventilation is adequate 
> to prevent an accumulation of moisture.
>
> If inside your attic is considered a "wet location", then you have 
> other issues.  Are you sure the NEC's definition of 'wet location' is 
> relating to the location of the romex?
>
> I just spoke to one of my inspectors and he sees no issue with 
> entering the bottom of a soladeck with romex.
>
> On the grounding/bonding, I have been using the bare wire in the romex 
> for the enphase system ground (within the enphase cable) and running a 
> #6 from the mod frames and rails into the soladeck and along side the 
> romex back to the panelboard.
>
> I need to get myself a copy of your NEC so I can be on the same page 
> as you guys.  I hear it is written in a way that is much easier to 
> interpret than the CE Code, which is written in a very legal jargon.
>
> Cheers,
>
> benn
>
> DayStar Renewable Energy Inc.
>
> www.daystarsolar.ca <http://www.daystarsolar.ca>  *  Ph: 780-906-7807
>
> Construction Electrician Solar Photovoltaic Systems Certified
>
> Certificate # 0007S
>
> HAVE A SUNNY DAY
>
> On 25/10/12 9:37 AM, "Glenn Burt" <glenn.burt at glbcc.com 
> <mailto:glenn.burt at glbcc.com>> wrote:
>
> Soladeck on the rooftop places it in an environment that is considered 
> 'wet'.
>
> I don't think Romex is listed for use in a wet environment.
>
> This would force you to use the proposed jbox in the attic for the 
> transition location.
>
> I also understood that you could combine the EGC and GEC into a single 
> conductor as long as it is continuous or irreversibly spliced, as part 
> of the '08 code.
>
> -Glenn Burt
>
> *From:*re-wrenches-bounces at lists.re-wrenches.org 
> <mailto:re-wrenches-bounces at lists.re-wrenches.org> 
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On Behalf Of 
> *Jason Szumlanski
> *Sent:* Thursday, October 25, 2012 9:13 AM
> *To:* RE-wrenches
> *Subject:* [RE-wrenches] Enphase and Romex
>
> I'm sure this has been covered, but I could not find it in the archives.
>
> We are considering using Romex in the attic for the first time. My 
> plan was to use the new Enphase coupler to connect the trunk cable to 
> Type TC-ER, enter a Soladeck passthrough box on the roof into a 
> junction box in the attic where I would make the transition to 10/3 
> Romex. I'm hung up on the GEC going back to the service panel. Any 
> suggestions?
>
> By the way, we are on NEC 2008, and in most cases there is also a 
> requirement for an additional grounding electrode per NEC 690.47(D) 
> (that shouldn't really relate to my issue).
>
> *Jason Szumlanski*//
>
> /Fafco Solar/
>
> _______________________________________________ List sponsored by Home 
> Power magazine List Address: RE-wrenches at lists.re-wrenches.org 
> <mailto:RE-wrenches at lists.re-wrenches.org> Options & settings: 
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org 
> List-Archive: 
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org 
> List rules & etiquette: www.re-wrenches.org/etiquette.htm 
> <http://www.re-wrenches.org/etiquette.htm> Check out participant bios: 
> www.members.re-wrenches.org <http://www.members.re-wrenches.org>
>
>
>
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Options & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out participant bios:
> www.members.re-wrenches.org
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20121026/cf465b30/attachment-0003.html>