Corey,
Generally, when choosing a larger system with multiple string inverters,
the preferred architecture is to have the string inverters distributed -
located at the ends of each row, and running AC lines back to a central
AC combining location. This minimizes the length of the high voltage DC
wiring to the short jump from the array to inverter and it allows short
circuit/OCP for the runs back to the AC combiner to be provided by
standard AC rated equipment. This also allows the wire runs to be
standard building wire in plastic conduit.
Did you consider this and choose the "inverter wall" for some particular
reason?
Mark Frye
Berkeley Solar Electric Systems
On 9/27/2016 1:50 PM, Corey Shalanski wrote:
Umm, is PV Wire rated for direct burial? I have seen several
manufacturer spec sheets that suggest this is the case, but I haven't
heard of anyone ever actually doing this.
Project Information:
1.6 MW single axis tracker
(35) 40 kW string inverters
Trenching from row ends to inverter wall, trench lengths will vary
between 15-100 feet.
--
Corey Shalanski
Joule Energy
New Orleans, LA
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