T-45C TS, ADV & IUT ENG-02
Electrical System
D.
115 VAC essential bus: equipment powered
Sg 5, fr 4
Electrical Load
1.
GPS/Inertial Navigation Assembly (GINA)
Distribution--Part 3
2.
Warning/caution/advisory dimming (14/10 VAC)
Fig 8: Electrical Load
Distribution
3.
Emergency NLG door actuator
E.
115 VAC non-essential bus: equipment powered
1.
Display Electronics Unit (DEU) cooling fan
2.
Radar altimeter
F.
26 VAC essential bus: equipment powered
1.
Airborne Data Recorder
2.
TACAN-Azimith computer
G. 26 VAC non-essential bus: equipment powered
1.
DEU
2.
VOR/ILS/MB
3.
Yaw damper
H.
28 VAC essential bus - left and right console lights
I.
6 VAC essential bus - NAV lights (wing)
J.
6 VAC non-essential bus - Formation lights
K.
5 VAC non-essential bus - Main instrument panel lights
?
What should the voltmeter read with both batteries
fully charged?
ANSWER: A minimum of 24 volts.
Change 4 (9-98)
Page 2-27
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