Ground Fault [RE-wrenches]

[Electrical Energy]

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At 11:27 AM 11/19/2002 -0500, you wrote:
>I understand that the new code requires a DC disconnect near the array prior
>to entry into the building envelope

Where do you read this?  My reading of the code, quoted below, indicates 
that the disconnect can be inside the building.

"690-14
1) Location. The photovoltaic disconnecting means shall be installed at a 
readily accessible location either outside of a building or structure or 
inside nearest the point of entrance of the system conductors."

The quote below is explanatory, from the NEC Handbook.

"........................These requirements will generally prohibit long 
runs of PV source and output circuits inside a building before reaching the 
required PV disconnect. A short conductor run through a wall at the point 
of first penetration to reach a disconnect mounted inside the building is 
allowed. "

I agree that the GFP should be near the array.  I also believe it should 
have an electrically controlled reset at a readily accessible location, 
preferably in the DC disconnect enclosure.

-Drake

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