other than the propensity for arc flash at unexpected times, I see a chance of generating Gamma rays at 1 KV. shielding mitigates most of that, but expensive and heavy.
The other problem I see is physically maintaining insulation. lots of common and available stuff just isn't feasible above 600v. Hv stuff is expensive if you don't have space.
OTOH running 2 separate packs until just at the controller might work, kinda. isolating the 2 packs is an interesting thought puzzle. and extraneous leakage is just plain ugly.
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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