Yep, I made sure to use well under 1mA for the ground presence detect
to avoid upsetting upstream GFI.
Same with the built-in GFI test, I made sure to *not* introduce any
ground fault current externally for the internal test.
I heard stories that some EV Charger designers made that mistake and
had
Tesla chargers are infamous for using too much current in their ground
presence testing, so that they trip the 5mA GFCI units. This leads
people to swap out their GFCIs for regular breakers, so this safety
feature makes them less safe in the end.
Ken
