by Ingineer (Posted Tue, 19 Nov 2013 01:22:02 GMT)
There is no relay on the ground wire (for safety), and it's not possible to detect every kind of fault with just the one connection to an outlet.
Connecting a hot wire to an outlet's ground screw is not a fault, because it's not something that can happen as a failure, it's an intentional miswire.
The EVSE will not operate with a ground fault, but connecting hot to ground energizes the car regardless of the EVSE's relay state!
This is tantamount to connecting a vehicles battery in reverse and expecting nothing bad to happen!
-Phil
There is no relay on the ground wire (for safety), and it's not possible to detect every kind of fault with just the one connection to an outlet.
Connecting a hot wire to an outlet's ground screw is not a fault, because it's not something that can happen as a failure, it's an intentional miswire.
The EVSE will not operate with a ground fault, but connecting hot to ground energizes the car regardless of the EVSE's relay state!
This is tantamount to connecting a vehicles battery in reverse and expecting nothing bad to happen!
-Phil