Wrenches, I have a system on a customers house
that consists of 4 SP75's roof mounted, a 4024 with a DC 250 disconnect, a C-40
charge controller and 8 T-105's. This is a grid connected house and we set
up a separate subpanel for the loads that run off the 4024. The grid feeds
AC1 and acts as the back up. Therer is no generator on this system.
This system was always intended to grow as the customers budget could
afford. Now we are adding 12 more SP75's on the roof and they are going to
inter-tie with the grid. We will add an outside disconnect to comply with
requirements. The question is about GFI protection for the roof mounted
array. What has anyone been doing to provide for GFI protection for roof
mounted arrays? and where in the control room equipment has anyone mounted the
GFI protection? There is a 60 amp DC breaker mounted in the DC250 from the
array on the way to the C-40
Thanks for any feedback
Larry Brown
Sun Mountain
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