Reno,
A current conflict here with the adoption of the 2020 code involves EV chargers. Resi units that are cord and plug supplied by the various manufacturers, not the hard wired units.
NEC 210.8 (A) receptacles 120-250 volts require GFI protection. Outlet installed for EV plug in charger at 240 volt, 30 thru 50 amps falls into that range. Some EV units, within the mfg. install paperwork state "do not install unit on a GFI protected circuit". (Internal GF protection within the unit from factory)
Now, 110.3 (B) states 'follow mfg. instructions'......hmmmm...
A bit of confusion.
Do we (Inspectors) follow 210 or 110?? Does the EC follow 110 or 210??
Following 110, now I hear that the State is saying "NO" to 110, and 210 prevails, as it is more stringent than 110 regarding safety. OK!!
I hear some units that trip out the GFI CB, when the car is plugged in, and some that do not provide output to the car when plugged in.
So, do we say, 'at time of inspection a GFI CB was installed'?? Or ??
