We have a piece of equipment that runs on 230VAC being shipped to the USA (110VAC). We are shipping it with an isolation transformer (5kW) The input is E,N,L and the output is neutral and live (isolated). What do we do with the earth connection on the equipment?
(a) Leave earth unconnected
(b) Connect it to 230VAC neutral at the transformer
(c) Connect it to 110VAC earth (ie the building's earth)
Additional comment: There is likely to be local mains driven equipment connected to our box eg computers