Volvo D11 series, Installation Manual

Page: 142 / 212

Electrical system
40
Cable core area (mm
2
)
50 70 95 20
Cable core area
1)
(AWG)
/0 2/0 3/0 4/0
Engine Electrical System Total cable length m (ft)
D5/D7 2V N/A 0–4.2 4.2–5.4 5.4–7.2
(0–3.8) (3.8–7.6) (7.6–23.6)
D5/D7 24V 0–3.0 3.0–7.8 7.8–23.0 23.0–3.0
(0–42.6) (42.6–55.8) (55.8–75.4) (75.4–0.6)
D9 2V 0–5.0 5.0–8.0 8.0–0.0 0.0–3.0
(0–6.4) (6.4–26.2) (26.2–32.8) (32.8–42.6)
D9/D 24V N/A 0–8.0 8.0–0.0 0.0–3.0
(0–26.2) (26.2–32.8) (32.8–42.6)
D2
2)
24V N/A 0–3.2 3.2–6.0 6.0–22.0
(0–42.8) (42.8–52.4) (52.4–72.2)
D6 24V 0–4.4 4.4–6.4 6.4–8.4 8.4–.0
(0–4.4) (4.4–2.0) (2.0–27.6) (27.6–36.0)
1 ) AWG (American Wire Gauge)
2
) Values based on battery capacity 40 Ah
Starting battery cable area
Volvo Penta recommends cable areas as below, to
provide sufficient power from the battery to the start-
er motor.
Measure the
total cable length from the battery
positive (+) terminal via the main switch to the starter
motor positive (+) terminal and from the starter motor
negative (–) terminal back to the battery negative (–)
terminal .
Thereafter select the recommended cable area ac-
cording to the table on the next page for
both the
negative (–) cable and the positve (+) cable.
Since the cable has to absorb generated heat, the
cross section area should not be less than 50 mm².
Keep the positive and negative wires to the starter
motor at approximately equal lengths and use the
same dimensions
Comparison cable core area (mm²) / diameter (mm) according to Volvo standard
Cable core area, mm² 50 70 95 120
Cable core diameter, mm 2 4 6 8
Cable diameter, mm 5 7 9 2
Starter
Battery
Main
switch
NOTE! If the vessel may operate in colder tempera-
ture than +5 °C, the cable size must be increased.