Electrical System
General
The electrical installation must be planned very care-
fully and installed with the greatest of care. Strive for
simplicity when designing the electrical system.
Cables
and connectors used in the installation must be
approved for marine use. The cables must be run in
conduits and securely fastened.
IMPORTANT!
Cables between engine and boat must be clamped
both on the engine and in the boat so that they are not
damaged by vibrations.
Be careful not to run cables too close to engine hot
spots or close to other heat sources. The cables must
not be subjected to mechanical wear. Where neces-
sary, run cables through conduits.
Strive to minimize the number of joints in the system.
Make sure that the cables and particularly the joints are
accessible for inspection and repair.
There must be a circuit diagram in the boat covering
the entire system. This will considerably simplify fault
tracing and the installation of further equipment.
IMPORTANT!
Make sure that all components used are suitable for
marine environments. Take care to ensure that no
joints in the engine compartment are located far down.
IMPORTANT!
Supply cables – batteries, alternators, distributors,
starter motors and heavy loads must be installed sep-
arately from the EVC buss cable and the control unit
cables in Volvo Penta IPS installations.
Positive (+) and negative cables (-) must be secured
adjacent to one another, not separately.
Two-pole electrical system
IPS engines have two-pole electrical systems with
insulated ground returns. In a two-pole system each
electrical component on the engine has an insulated
direct current ground return.
IMPORTANT!
Do not ground any cables to the engine block.
Power supply
IMPORTANT!
Large power consumers such as capstans and similar
must be connected to a separate auxiliary battery and
not to the start batteries.
Installation, Electrical System
120 47704162 10-2014 © AB VOLVO PENTA
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