Phil wrote: > no conductor is ever over about 160v peak-to-peak with respect to ground
I agree, but with one little nit to pick. My AC line voltage is normally 120vac, and varies from about 115v to 124v depending on the current grid loading. The peak of 124vac is actually 170v; a situation that occurs here pretty often. In fact, I had to add a 6v buck transformer between my PV inverter and grid (so it sees 114v when the grid is 120v). The inverter trips off if the grid hits 126vac, which happened often enough to need the buck transformer. You are exactly right on US NEC codes. They are written for fire and insurance purposes, not electrical safety. Enforcement is also more bureaucratic than technically accurate. -- Excellence does not require perfection. -- Henry James -- Lee A. Hart https://www.sunrise-ev.com _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
