Yes it’s country specific, but more about old houses.
In my case the building code says the ground should have an impedance of maximum 1666 ohm. My installation was already grounded and had about 400 ohm.
The charger guidelines says 200 ohm, however the car refuses to charge on anything over 100 ohm.
I had an electrician add a new ground spear, bringing the impedance down below 1 ohm.
The building code in USA already recommends 25 ohm, so it shouldn’t be an issue if the installation is up to date.
Yes it’s country specific, but more about old houses.
In my case the building code says the ground should have an impedance of maximum 1666 ohm. My installation was already grounded and had about 400 ohm.
The charger guidelines says 200 ohm, however the car refuses to charge on anything over 100 ohm. I had an electrician add a new ground spear, bringing the impedance down below 1 ohm.
The building code in USA already recommends 25 ohm, so it shouldn’t be an issue if the installation is up to date.