ERG4ALL wrote: I'm a little concerned that SKY888 used 80 feet of 10 ga wire for his set up. That may be okay if he never opts for the 6.6 kW charger and stays with the 3.3 kW charger, but the extra cost is so little for the heavier wire in relation to the labor that I'm surprised that he didn't go with the 40A set up.
Thanks ERG4ALL, for the reply and strngly agree with you. I was hoping to impart the importance of adequate cable size in my write-up. 80 feet of 10-gage is out-of-spec and in the real world it's marginal for the 28 amp load of a 6.6Kw unit and may heat up enough to melt insulation so I would strongly encourage SKY888 to monitor the cable at first use for temperature rise. Also he'll lose some watts from excessive resistance of the smaller cable but that's a minor concern compared with fire risk. Copper is cheaper than rebuilding a burned-down house!