The 12 V system consists of engine driven alternators, battery chargers for shore-side electricity, batteries and equipment. The power supply happens from charger or alternator via diodes for batteries.
Most equipment of the boat uses the 12 V system. The 12 V system is working only when a main switch and a switch in the main switch panel is switched on. Damaged equipment must be maintained before taking back to use. When the electronic circuit is switched on, actuators can be operated from the switchboard in the helmsman’s spot.
-
Never switch off the current when the engine is running, because this may cause damage to the alternator.
-
Never carry out electrical installations when the power is switched on.
-
Never modify the boat’s electrical system or diagrams; service and maintenance must be carried out by a qualified electrician.
-
Never modify the nominal rated amperage of the overvoltage protector.
-
Never install or replace electrical equipment with components that cause the circuit’s nominal rated amperage to be exceeded.
-
Never leave the boat unattended with the electrical system energized, except automatic bilge pump, fire protection, and alarm circuits.