[RE-wrenches] Source Circuit Disconnect - 690.14 (C)(1)

[Carl Adams]

Fellow Wrenches,

We recently failed an inspection on a new PV installation
We are operating under the 2008 code
I have attached a small sketch of our conduit routing to clarify things.

Inspectors note post inspection ...provide a photovoltaic disconnecting
means per 690.14 (C)(1)

During his inspection the inspector was unhappy that we had entered the
attic space with the DC source circuits, saying we should have run the
conduit across the roof and kept it outside.  Since we entered the building
we would need to add a DC disconnect in the attic to meet code.  My thought
is that we fall under the exception listed (690.31(E)) since all source
circuit internal to the dwelling are in metallic raceways.  I'd like to
hear other wrenches chime in on this.

Our reason for routing things as we did was to keep the installation
aesthetics first class and minimize unsightly conduit runs.

Code section follows

690.14 Additional Provisions. Photovoltaic disconnecting
means shall comply with 690.14(A) through (D).690.14

(C) Requirements for Disconnecting Means. Means
shall be provided to disconnect all conductors in a building
or other structure from the photovoltaic system conductors.
(1) Location. The photovoltaic disconnecting means shall
be installed at a readily accessible location either on the
outside of a building or structure or inside nearest the point
of entrance of the system conductors.
Exception: Installations that comply with 690.31(E) shall
be permitted to have the disconnecting means located remote
from the point of entry of the system conductors.
The photovoltaic system disconnecting means shall not
be installed in bathrooms.

 690.31 (E) reads as follows
(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).


With Regards
Carl Adams, President
SunRock Solar, LLC
513.290.9072 (cell)
513.766.6025 (office)
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