Safety Shore based power

[ArranP]

I am intending to install Victron Pheonix Inverter to be the exclusive provider of AC power on my boat with a seperate charger for charging the house bank from AC shore power. I am assuming negates the need for a isolation transformer as the AC power is only connected to the battery charger not the inverter.

However it has been suggested to use a Multiplus Inverter instead of the Pheonix. The Multiplus has a battery charger built into it. The problem I am considering is when the AC shore power connects to the Multiplus inverter, the boats ground plates will be connted to the shore based earth and thus could paralise someone in the water within the vicinity of my boat.

Where as with the Pheonix Inverter there is no connection to the AC shore based power, instead the AC power is connected only to the seperate battery charger.