[RE-wrenches] Commercial Inverters - Neutral Conductor

[Corey Shalanski]

Greetings Wrenches,

I am curious about the requirement or non-requirement to run a neutral
conductor in the output circuit for commercial (3-phase) inverters. I
understand that this requirement will not apply in certain scenarios simply
due to the grid configuration, e.g. 480 Vac delta. I also understand that
the installation manual for each inverter must firstly be consulted to
check for such requirement/non-requirement, and that any instructions found
there will generally take precedence over *NEC* language. *Can anyone speak
to any other general rules regarding whether or not to run the neutral?*

Assuming a neutral conductor is run for "instrumentation, voltage
detection, or phase detection" per 705.95(B), *would this conductor be
counted as a *current-carrying* conductor when applying the adjustment
factors found in 310.15(B)(3)(a)?*

--
Corey Shalanski
Jah Light Solar
Portland, Jamaica
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