Changes

The boat's secondary electrical system is AC. In Europe it The exact specification will be designed for 230-VAC single phase. In North America it will be either 120-VAC single phase or 240-VAC double phase. A manual switch driven by the standards in the Pilothouse selects "boat power" (inverter) or "shore power" as the power source, with automatic detection part of the voltage world where you mainly operate and frequency of the will source shore powerand various appliances and tools. In As much as possible minimize the boatuse of AC, the green AC ground wire is connected in part to reduce the Common Grounding Point – size and cost of the white ground wire is left floatinginverter. AC wiring Any large motors should be stranded copper, not solid or tinned, to better resist breaking from vibration. All AC light bulbs adjacent to metal, especially in the engine room, are protected as shock hazards. All AC outlets are equipped with ground-fault-circuit-interruption (GFCI) circuit breakersDC.

Each engine (if there For global operations the best choice is more than one) will have a high-capacity dual-output alternator and multistage regulator, with separate charging circuits for the starter and house batteries. A backup manual switch and regulator are provided. The regulator must be suited to default to the type European standard of battery: Flooded cells require an equalization charge after 230 VAC for the main charge; whereas gel and AGM cells usually do not. Typical vendors are: [http://www.amplepower.com/ Ample Power], [http://www.balmar.net/ Balmar], [http://www.hehrpowersystems.com/ Hehr Power Systems], [http://www.jackrabbitmarine.com/ JackRabbit Marine] and [http://www.salt-systems.com/ Sea Air Land Technologies, Incboat's internal AC system.]

If A manual switch in the Pilothouse selects "boat will be unattended for periods at least one engine must autostart on a schedule to keep power" (inverter) or "shore power" as the batteries charged. === Trickle Charge System === In case power source, with automatic detection of the main charging system fails while voltage and frequency of the boat is unattended, a DC trickle-charge system can be providedshore power. Trickle charging is also a good idea because there are usually parasitic loads on a battery system that will slowly discharge it. Deep discharge batteries do The shore side ground should not want be connected to be trickle charged at a high rate: 3% is recommended. Thus a the boat with a house bank of 1000 AH requires a trickle charge of 30 AH's Common Grounding Point – an isolation transformer should keep the two sides apart. Wind turbines and solar panels are ideal for a trickle-charge system; although they are AC wiring should be stranded copper, not suited as a main power sourcesolid or tinned, to better resist breaking from vibration. UnfortunatelyAll AC light bulbs adjacent to metal, as a main power source, each of them has a significant performance drawback especially in the context of a smallengine room, are protected as shock hazards. All AC outlets are equipped with ground- to mediumfault-size boat. They simply need too much real estatecircuit-interruption (GFCI) circuit breakers.

A combination inverter/charger is attached to the [[HouseBank|house bank]] for generating AC from the batteries when offshore, and/or charging the batteries from shore power when in port. Points to consider in an inverter/charger are:

* Put AC motors on the inverter power only, not on direct shore power