[RE-wrenches] Enphase and Romex

[Solarguy]

http://www.rstcenterprises.com/soladeck

 

.    Can I use a Type 3R rated SolaDeck enclosure to combine PV strings? 

The Type 3R SolaDeck enclosure is not listed or labeled to meet the standard
for combining PV strings. There

are SolaDeck models that are rated, listed, and labeled to the UL1741
standard for combining.

 

.    How is a SolaDeck Type 3R enclosure typically used?

The Type 3R rated SolaDeck models are listed for outdoor use and typically
are being used for simple pass through of the wire or a junction box for
transition of wire.

 

.    What is best way to transition the PV wire with a SolaDeck?

Wire nuts can be used but rail mounted terminal blocks are rapidly becoming
the method of choice. Terminal blocks are

non-fused connection devices that provide a visibly clean installation for
easy labeling. 

*************************

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Ray Walters
Sent: Friday, October 26, 2012 3:10 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Enphase and Romex

 

Thanks Benn, I've also never seen anyone switch to UF, just to wire to an
exterior outlet mounted directly on an exterior wall of a home.  

Further, the box is usually indoor rated(if it's in the wall) and only the
exterior cover plate is weather proof.  Both UF and NM have THHN inside of
them, and it's the THHN that is inside the exterior J box, as the
weatherproof covering has been stripped off. THHN is damp rated, 

while THWN is wet rated.   Most of that wire is actually dual rated 

THHN/THWN.

Seems to be yet another case where solar is held to a different standard
than other wiring.

 

Ray Walters

 

 

On 10/26/2012 12:02 PM, benn kilburn wrote:

> Glenn/Jason,

> So you wouldn't use romex to feed an exterior outlet on an outside 

> wall, or to any outside lights???

> 

> 

 

 

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