Residential PV Systems are popping up here quicker then weeds during rainy season. As inspectors we’re straining hard to be sure we’re understanding the installations and correctly applying the code. We’ve hit a snag at NEC 690.31 (E). The question is EXACTLY WHICH conductors are required to be in metal raceways or metal enclosures? The title to this section seems to be clear, however when you get into the text it becomes a little murky. We are seeing a lot of micro inverter installations and are wondering if other AHJ’s are requiring the wiring (inside the building) FROM THE INVERTER to be in metal raceways or enclosures?