Hi all,
We're doing more and more installs with TL inverters (SMA and P1). I'm using double-insulated wire from the array string to the first enclosure, as in j-box, and then transitioning to standard THHN/THWN wire. I recently purchased some of that #10 double-insulated wire, getting a spool of black and white. Then after receiving the two spools it occurred to me: since the array is ungrounded, as far as there being no grounded conductor in the circuit, did I blow it by getting a spool of white wire? What sayeth you all? Can I not use that white wire in those array circuits for TL inverters? Thanks, marco
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