AC entirely separated from DC can it still stray

[Rustic Charm]

Forgive me for starting a new thread but there seems to be so many AC/DC threads that it will take me too long to sieve out what I’m after.

I have a glass boat, reasonably new to me. When I purchased it, it had a single AC power point connected to a shore power socket.. I suspect the previous owner plugged an extension into it to then run some kitchen appliances.

I’ve now added a few more sockets and an inverter so I have some basic AC on the hook. The system is completely isolated from the DC, except when using the inverter I guess, then it’s connected to the batteries of course.

I can disconnect the inverter and plug in a shore power lead if at a marina. But I can’t do both.

My question is, many (Facebook) seem to insist that the ‘earth’ (green) should be connected to ‘ground’ on the boat and quote the ABYC rules on it.

Is there an Australian perspective to this?
Is my system safe if it’s two entirely separated systems?

Regards.

[grantmc]

From what you've described of the 240v works you've carried out you'll need to have the work checked and certified by licensed electrician or accredited marine surveyor.

Click here to review the relevant Oz Maritime Safety Authority web site detailing the requirements.

[smac999]

If you have hooked the chassis ground of the inverter to the dc. Ground as required. You have Likly already joined the ac to dc ground via that cable.

[Rustic Charm]

Originally Posted by grantmc

From what you've described of the 240v works you've carried out you'll need to have the work checked and certified by licensed electrician or accredited marine surveyor.

Click here to review the relevant Oz Maritime Safety Authority web site detailing the requirements.

Yep, I have an RCD on the AC circuit.

[Rustic Charm]

Originally Posted by smac999

If you have hooked the chassis ground of the inverter to the dc. Ground as required. You have Likly already joined the ac to dc ground via that cable.

The inverter has a positive (red) to battery and negative ( black) to battery. Where it obtains its power from. However, I can’t see how that is connecting the AC power side to DC. ?