Volvo Penta D3-110i, Operator'S Manual

Page: 67 / 104

65
Maintenance: Electrical system
Electrical installations
Leakage current from the electrical system can be
caused by incorrect installation of electrical equipment.
Leakage current can knock out the galvanic protection
of components such as the drive, propeller, propeller
shaft, rudder stock and keel and cause damage by
electrolytic corrosion.
IMPORTANT! Work on the boat’s low tension cir-
cuit should only be carried out by qualified or ex-
perienced persons. Installation or work on the
shore power equipment
must only be carried out
by electricians authorized to work with high-volt-
age installations.
The following should always be observed:
1. If shore power is connected, the protector ground
should be ashore, never in the boat. Shore power
should always have a ground fault circuit breaker.
Shore power units (transformer, rectifier, battery
chargers etc.) must be intended for marine usage
and the high tension circuit must be galvanical-
ly separated from the low tension circuit.
2. Route and clamp electric cables so that they will
not be exposed to rubbing, damp or bilge water in
the keelson.
3. Engine or drive must never be used as a ground point.
IMPORTANT! The engine or drive must never
be used as a ground or be electrically connected
to other equipment such as the radio, navigational
equipment, the rudder, bathing steps etc.
Protective grounds for the radio, navigational equip-
ment, rudder, bathing steps or other equipment with
separate ground leads must be connected to a
common ground terminal.