With regards to ground mount conductors entering a building to the inverter and batteries inside. It doesn't make any sense to require RSD, because RSD is about array safety and we've agreed that for a ground mount the RSD requirement does not apply. A disconnect switch has always been an acceptable means of shutting down conductors -- whether from a PV array, the grid, a generator, or other power source. So why would a disconnect not suffice in this case, rather than putting RSD on the array. Not saying that's what the code says... but logically, the intent of RSD for conductor safety could be met with a disconnect switch where they enter the building, it seems.
-- Zeke Yewdall PV Engineer NABCEP #031508-89 [email protected] 303-523-3592
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