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:*[email protected]
[mailto:[email protected]] *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" <[email protected]
<mailto:[email protected]>> 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:*[email protected]
<mailto:[email protected]>
[mailto:[email protected]] *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/
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