MARLOW-HUNTER MH31, Руководство оператора

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DC Electric Systems
7.2
section.
7.2.1 Batteries
The batteries speced for your boat have been selected
for their ability to furnish starting power based on engine
requirements, as well as their ability to power the DC
system components (or house). We recommend AGM
(absorbed glass mat) batteries (see Fig. 7.2 for battery
specs).
Size Volts Function Qty
27 12 START 1
27 12 HOUSE 1
Figure. 7.2
The DC system derives its power from two separate
battery banks, generally referenced as the “Start” and
“House” batteries. Both batteries are located in the
companionway and can be accessed by flipping up the
hinged upper companionway step (Fig. 7.3).
Both banks are wired to the Battery Switch Panel, herein
after referred to as the BSP (Fig. 7.4). The batteries sup-
ply power first to the battery selector switch on the BSP
then to the 12 Volt DC Panel (Fig. 7.10), which distributes
power to other subpanels and systems. (Some equip-
ment is immediately energized from the batteries, i.e.
main bilge pump.)
The negative terminal of both banks are attached to
the DC ground connection on the engine. This system,
known as the negative ground system, is the approved
system for marine DC electrical systems. The battery
wiring system has two color coded wires: yellow - nega-
tive (ground), and red - positive.
To avoid explosions, do not use jumper cables and
a booster battery to start the engine. If batteries are
dead, recharge them with the optional battery charger (if
installed) (discussed later), optional inverter (if installed)
(discussed later) or remove and recharge on shore.
Batteries produce hydrogen and oxygen gasses when
being charged. If ventilation is poor, these explosive
gasses escape through the vent/fill caps and may form
an explosive atmosphere around the battery. This gas
may remain around the battery for several hours after
charging. Sparks or flame can ignite the gas and cause
an explosion.
Figure. 7.3
DANGER
! !
Batteries contain Sulfuric Acid and can cause severe
personal injury if mishandled.
Avoid contact with eyes, skin, or clothing. In case of
contact, flush with water at least 15 minutes.
If swallowed, drink large quantities of water or Milk
of Magnesia, beaten egg, or vegetable oil and seek
medical attention immediately.
WARNING
! !
Charging batteries produce gasses which can ex-
plode if ignited.
Explosion can shatter a battery.
Battery acid can cause severe personal injury such
as blindness.
Keep flame, spark, and smoking materials away from
batteries while charging. Charge in a well ventilated
area.