Scout Boats 262 Abaco, Owner'S Manual, Page: 37 / 120

The wires that supply DC charging current to the batteries are
protected by an internal fuse in the battery charger and two
external fuses, one for each battery bank output wire, located
near the battery switch. The external fuses protect the DC
charging circuit from the batteries to the charger. The internal
fuses in the charger protect the DC charging circuit from the
charger to the batteries.
Microwave (Optional)
Supplies electrical current to the microwave.
Air Conditioner (Optional)
Supplies electrical current to the AC control panel located in
the cabin and the air conditioner raw water pump.
Note: This breaker will trip if seawater is not being sup-
plied to the air conditioning unit. If this breaker
trips, reset and check for water flow out of the air
conditioning thru hull. See air conditioner owner’s
manual for more information.
Outlets
Supplies electrical current to the cabin and cockpit electrical
outlets.
Note: All AC electrical outlets are provided with ground
fault interrupts to protect against electric shock.
These outlets should be tested periodically to en-
sure proper operation by pressing the test/reset
buttons in the center of faceplate. GFI outlets do
not protect against short circuits and overloads.
This is done by the outlet breaker in the AC
panel.
GFI OUTLETS DO NOT PROVIDE 100% PROTECTION
FROM ELECTRIC SHOCK. EVEN THOUGH GROUND
FAU LT I N T E R R U P T E R S P R O V I D E P R OT E C T I O N
B Y R E D U C I N G E X P O S U R E T I M E F R O M L I N E
TO G R O U N D S H O C K H A Z A R D S , I T I S S T I L L
P O S S I B L E TO R E C E I V E A N E L E C T R I C S H O C K
F R O M D E F E C T I V E A P P L I A N C E S O R P O W E R
TOOLS AND MISUSED ELECTRICAL EQUIPMENT.
Refrigerator
This breaker is on the DC panel. The refrigerator runs on 12
volts or 120 volts and automatically changes from 12 volts to
120 volts when hooked to shore power.
See the refrigerator manual for more information.
4.4 Bonding System
Your boat is equipped with a bonding system that interconnects
all metal underwater hardware and thru-hull fittings to ensure
that they are of the same electrical potential. Zinc anodes are
attached to the bonding system at the engines and trim tabs.
The Zinc anodes deteriorate before the other metals, thereby
protecting the underwater metals from galvanic corrosion or
stray electrical current. Since the zincs are sacrificial, it is im-
portant to monitor them and replace the zincs when they have
deteriorated to 50 - 75% of their original size. The bonding
system is connected to the DC ground and the earth ground
wire for the optional AC electrical system. It provides a path to
the safety earth ground in the event of a fault in the shore earth
ground connection and when the boat is away from the dock.
When the boat is connected to shore power at a marina or city
dock, all boats connected to shore power are connected to a
common shore earth safety ground connection. This circuit
provides essential protection against electrical shock from faults
or short circuits in AC equipment and, unfortunately, provides
a path for low voltage galvanic current to flow between the
bonding system of other boats in the circuit. If one or more of
the boats in the circuit has a stray current electrical problem
or is not equipped with proper galvanic protection, it will seek
protection from your boat’s bonding system through the safety
ground circuit. This could cause accelerated deterioration of the
zinc anodes and/or severe damage to the underwater hardware.
To prevent damage from other boats in the circuit, a galvanic
isolator is installed in the shore ground circuit that isolates your
boat’s bonding system from the other boats. It prevents the flow
of low voltage galvanic current while still providing a path for
dangerous short circuit currents in the AC system to the shore
safety ground. The galvanic isolator should be tested at least
annually to make sure it is operating properly.