The marine environment is harsh and often has a high chance of water entering boxes where it shouldn’t. How do I know if I have the right level of protection in a box or enclosure against water ingress?
There’s an inherent problem connecting shore power to a vessel, where a common connection through the earth bonding to an adjacent vessel (or marina metal pilings) can cause an unintended circuit to be formed which causes your sacrificial anodes to become quickly eroded
Diodes are electrical one-way valves and are used in many applications in boat from large to small, but you may not recognise them at first. I showed you the diagram of the galvanic isolator elsewhere which comprises 4 diodes arranged like below, but how do you test one?