[RE-wrenches] need for outdoor DC disconnect

[Kirk Herander]

All,

I am retrofitting an existing PV system with Storedge / LG Chem / optimizers
and updating some code issues. I am replacing the PVC conduit carrying the
array conductors into the building with metallic raceway to the point of DC
disconnect(i.e. the inverter).  The array is presently connected to an
Outback inverter / FM60 controller / AGM batteries (grid tied with backup).
If I am interpreting NEC 690.12 etc. correctly, a DC disconnect outdoors is
generally not required because of new rapid shutdown capability, amongst
other reasons. Would this be the case regardless of metal or plastic conduit
penetrating the building? The system at present has no outdoor DC disco, and
to me that's a violation in addition to lack of metallic raceway entering
the building. Thanks.

 

Kirk Herander

Owner|Principal, VT Solar, LLC 

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