Hawker Beechcraft Hawker 800XP, Руководство по эксплуатации для пилотов

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Page 9-4
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Revision A4: Sep, 2010
Section III Sub-section 9
ELECTRICAL POWER
Pilot’s Operating Manual
CAUTION:
NO. 1 BATTERY MAY BE EXCESSIVELY DISCHARGED AND DAMAGED IF THE ROOF
SWITCH ON PANEL DA AND THE ENTRY LIGHT SWITCH ON THE FORWARD CABIN
BULKHEAD ARE LEFT ON FOR LONG PERIODS WHILE EXTERNAL POWER IS APPLIED.
THE VESTIBULE ROOF LIGHT AND THE ENTRY LIGHT ARE CONNECTED VIA THEIR
SWITCHES DIRECTLY TO NO. 1 BATTERY AND WILL COME ON IRRESPECTIVE OF THE
POSITION OF THE EXT PWR, EXT BATT CHG OR BATT SWITCHES.
With the EXT BATT CHG switch ON, each battery is connected to its associated busbar (PS1 and PS2)
and charged from the external power supply. The external power cannot be paralleled with the airplane
generators.
BATTERY SUPPLIES
Two 24 VDC, 28 ampere-hour sealed lead acid main batteries, No. 1 and No. 2, are located in the rear
equipment bay. These batteries provide internal power for engine starting and also maintain essential
services in the event of a double generator failure.
NOTE: When the correct emergency drill is carried out together with prompt shedding of non-
essential loads, the batteries can maintain essential services for a minimum of 60 minutes.
In addition to the main battery supplies, three 24 VDC 4 ampere-hour sealed lead acid batteries Nos.
3, 4 and 5 are located in the rear equipment bay. These batteries provide electrical power for the
emergency lighting and essential services during emergency conditions.
Also, one 24 VDC 4 ampere-hour sealed lead acid battery No. 6 is located in the avionics shelf of the
aft cabin. This battery provides electrical power to the Electronic Standby Instrument System (ESIS) in
the event of a double generator failure and the output of the PE busbar being less than 21 VDC.
AMMETERS
Two ammeters are provided in the flight compartment on the overhead roof panel and provide generator
load and battery charge current. Display selection is by operation of push switches labelled AMPS BATT
and 0-40, located between the ammeters. The scale of 0-450A has a yellow segment from 300 to 400A,
and a red segment from 400 to 450A. Each ammeter normally indicates its related generator load.
When the AMPS BATT switch is operated, the battery charge currents are displayed.
If a low charge current (below 40A) cannot easily be read, the 0-40 push switch may also be operated
to select an ammeter range of 0-40A. Release of both switches will revert the ammeter displays to their
respective generator loads on the 0-450A scales.
Overhead Roof Panel
0-40
AMPS
BATT
1
111
100
200
300
400
DC
A
1 111
100
200
300
400
DC
A