AIRPLANE
OPERATIONS
MANUAL
GROUND SERVICING
REVISION 31
1-12-05
Page
1
Code
01
EXTERNAL CONNECTIONS
CONNECTING ELECTRICAL POWER SUPPLY
A 28 V DC external power supply source can be connected to the aircraft
through the receptacle installed on the left side of the fuselage nose.
It is recommended that the external power source be capable of
supplying at least 300 A, with maximal 1% steady-state voltage
deviation. The voltage shown in the MFD electrical page should be
28.0 V (-2.0 V +1.0 V) DC when the GPU status is 'AVAILABLE'. The
power source must be able to maintain the voltage within this range
when the GPU status is 'IN USE'. Connecting a source out of these
specifications may lead to electrical problems and therefore should be
avoided.
Before energizing the aircraft, it must be assured that aircraft systems
are in a safe condition, and that energizing will not cause any injury to
persons or damage to equipment. When using an AC fed external
power source, a ground connection between the hangar structure and
the power source, and another one between the power source and the
aircraft, are necessary.
CONNECTING ELECTRICAL POWER SUPPLY
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