175
2008 IMPERIAL
ELECTRICAL SYSTEMS - HOUSE — 8
CAUTION:
If shore power service is limited to 15
or 20 Amps, use of light duty extension
cords and electrical adapters will
create voltage loss through the cord
and at each electrical connection. Line
voltage loss and the resistance at each
electrical connection can be a hazardous
combination. Damage to sensitive
electronic equipment may result.
WARNING:
Avoid the risk of electrical shock or
component damage by disconnecting
from shore power during electrical
storm activity. Use the Inverter/Charger
or start the generator if AC power is
needed.
NOTE:
Three types of shore power outlets
most commonly used are shown in the
illustration.
Power Supply:
Amperage supplies vary greatly depending
on the amount of available current.
The continuous amount of current
through a breaker or fuse is only 80% of
its rated capacity.
50 Amp 240 Volt AC shore power
service consists of two power
supply conductors, a neutral and a
safety ground. The 50 Amp breaker
simultaneously limits each power
supply conductor to no more than
a short-term maximum of 50 Amps
for each conductor. The 50 Amp 240
Volt AC service actually provides 80
continuous amps.
Use care when hooked to anything less
than 50 Amp shore service. Shore power
service less than 50 Amps consists of
one power supply conductor, a neutral
and a safety ground; 30 Amp shore
service is limited to 24 continuous
Amps; 20 Amp shore service is limited
to 16 continuous Amps.
Electrical Adapters:
There are different electrical adapters to suit
a variety of needs. Only UL approved adapters
should be used. The most common adapter is
a 50-30 Amp adapter. This type of connector
adapts the 50 Amp shore cord to a 30 Amp shore
power outlet.
Another common adapter is the 30-20 Amp
adapter. Always install the adapter to the cord
prior to making the connection to the outlet.
Power Cord Reel
The Power Cord reel is a 12
Volt DC motorized assembly
designed to mechanically coil
and stow the shore cord. The
power cord reel is located in the
roadside service bay. The power
cord switch operates a 12 Volt DC
motor that extends and retracts
the cable.
When extending or retracting the power cord,
turn the switch to the desired direction. Assist
the cord, following the direction of travel.
Extend only as much power cord as necessary
to reach the shore power outlet. When the
cord is connected to shore power, it should be
slightly slack.
Maintenance:
Kinks may form in the shore power cable
when only a short section is frequently used.
Routinely extend the cable full distance and
straighten the power cable on the ground to
relieve kinking.
060121c
060164
Typical 50-30 Amp Adapter
080375a
POWER
CORD
Power Cord
Switch:
Located in
service bay
060174
Typical 30-20 Amp Adapter: Adapts 30 Amp Shore Cord to 20
Amp Shore Power Outlet
