Hidden Low profile conduit through roof - flashing? [RE-wrenches]
troy
taharvey at heliocentric.org
Sun Dec 9 20:21:25 PST 2007
<x-flowed>
Mark,
I missed that comment about MC cable. I under the impression that
stringing MC cable directly from the panel, through the building, is
acceptable so long as it is in metallic conduit and is cross-rated.
WHat is the issue you are bringing up.
Troy Harvey
---------------------
Heliocentric
801-453-9434
taharvey at heliocentric.org
On Dec 7, 2007, at 1:30 PM, Mark Frye wrote:
>
> William,
>
> Here is the text from NEC 2008 690.31:
>
> ("E) Direct-Current Photovoltaic Source and Output Circuits Inside a
> Building. Where direct-current
> photovoltaic source or output circuits of a utility-interactive
> inverter
> from a building-integrated or other
> photovoltaic system are run inside a building or structure, they shall
> be contained in metal raceways, or
> metal enclosures, from the point of penetration of the surface of the
> building or structure to the first
> readily accessible disconnecting means. The disconnecting means shall
> comply with 690.14(A) through
> (D)."
>
> It appears that there has been no change in this Article. There was
> an
> attempt to modify to specifically allow MC cable, but that did not
> make
> it into the new code.
>
> Status Quo for three more years.
>
> I use only EMT and FMC inside the building.
>
>
> William Miller wrote:
>>
>> Friends:
>>
>> As you all know, the 2005 code allows for PV source conduit to
>> enter a
>> building envelope without first passing through a disconnect IF the
>> conduit
>> is metal. Does anyone have factual knowledge if this will change for
>> 2008?
>>
>> William Miller
>
>
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