JS-MD 3
Aircraft Flight Manual
MD10-AFM-00-001
Issue: 01
Rev. 00
Rev. Date: 14-Feb-20
Page 7-32
Electrical system
The electrical power of the aircraft is supplied by maintenance-free dry-
gel type or LiFePO-4 12V batteries. Two main batteries are fitted in the
luggage compartment and an optional backup battery can be installed
behind the seatback.
Power is supplied to the various electrical systems with a battery master
switch arrangement and battery selection switches.
CAUTION:
Overload protection is provided for each electrical
system by circuit breakers. The rating for each system
must comply with the specifications of the equipment
manufacturer.
Electrical system description
12V DC Power is supplied to four separate electrical systems:
1. Avionic bus 1
2. Avionic bus 2
3. Electrical system (ERGO, Bugwipers etc.)
4. Jet system (if installed)
7.11.1.1 Master switch arrangement
A master switch arrangement is used to switch on the avionic system,
electric system and the Jet.
Figure 7.11-1 Master Switch
