[RE-wrenches] 690.31E (through a building)

[Bill Brooks]

Mark,

 

The readily accessible disconnect at the inverter is all that is necessary
according to the code. There may be practical reasons for additional
disconnects, but if the system has no combiner box, or the combiner is at
the inverter, only the disconnect at the inverter is required.

 

Bill.

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Mark Dickson
Sent: Friday, December 18, 2009 3:25 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] 690.31E (through a building)

 

Hello there, 

Due to a lot of concrete and asphalt, we are forced to run our PV source
circuits in through one exterior wall, through a crawl space and out through
the opposite exterior wall to our inverter and disconnect.  We will be using
EMT and will not be making any stops while inside the building.  We will
however need to place a couple of pull-boxes due the various required bends
in excess of 360*.  Will we be required to place a DC disconnect at the
"first readily accessible" point inside the building?

 

Best regards,

 

Mark Dickson,

NABCEP Certified Solar PV Installer T

Oasis Montana Inc.

 

 

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