Here is a question for ya then...!
I hope you get lots more, so that we can learn from a (ex) professional
I have a 30 year old aluminium cat.
That sort of vintage has obviously seen several iterations of electrical
and electronic trickery. It currently has 12v and 240v (via inverter) wiring
I have been clearing out old wiring
, since not all has been removed when new stuff put in. For instance, when I installed a new masthead VHF
aerial and coax, I removed 6.6kg of radio
and TV coax from various nooks and crannies!!
But while digging into the deeper reaches of the electrical
area, I found the negative busses for the 12v and 240v and earth bus for the 240v systems. But what surprised me was that these were bolted and connected to the aluminium hull
Now, I thought everything was meant to be isolated from the hull
All circuits do have their own positive and negative wires, so no circuits actually use the hull to complete their connection (as far as I have found).
All anodes appear to last well, with little erosion.
So, do I panic about electrons having access to the hull, or do I relax, accepting that some electrons are always going to leak to the hull and so the system might as well be grounded fully?