Originally Posted by sparrowhawk1
It's connected together through a breaker. I describe it in a previous post. My main is three Breakers controlled by one switch. And it does not look like the breaker panel has been modified in any way
A triple breaker does not connect neutral and ground but switches them to their respective buses. These buses should not have any interconnection.
A house is static after initial construction, no changes are regularly made to the wiring
. If it is correct when built it will stay that way.
A boat that goes anywhere is plugged into the source in any number of marinas
, any of which can be badly wired, This can include no ground connection to shore and the possibility of reverse polarity. In North America ABYC calls for the AC ground to be connected to the DC negative bus for safety
reasons. While this is debatable it is done this way on virtually every boat in North America by the builder
. If you were to plug
into a reverse polarity shorepower connection and had the ground and neutral connected on the boat the neutral would become hot as would the DC system. That is why it is dangerous.