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There is also the consideration that a portable EVSE (your granny cable) doesn’t have the same safety considerations as a proper installed EVSE. The earth being used is the same as the house earth and you’re effectively extending your equipotential zone outside, where it isn’t.There’s good reasons why the type of earth your house has and the locality of exposed metalwork etc. needs to be surveyed before installation, and it’s not because of the EVSE, it’s due to attaching mains to a big metal thing sat on insulators.It’s unlikely that there will be a problem and therefore everything will be fine, personally I don’t fancy electrocution (again) and the possibility of death. Just do it properly.
There is also the consideration that a portable EVSE (your granny cable) doesn’t have the same safety considerations as a proper installed EVSE. The earth being used is the same as the house earth and you’re effectively extending your equipotential zone outside, where it isn’t.
There’s good reasons why the type of earth your house has and the locality of exposed metalwork etc. needs to be surveyed before installation, and it’s not because of the EVSE, it’s due to attaching mains to a big metal thing sat on insulators.
It’s unlikely that there will be a problem and therefore everything will be fine, personally I don’t fancy electrocution (again) and the possibility of death. Just do it properly.
