AIRCRAFT FLIGHT
MANUAL
BRISTELL B23
Document No.: ADXC-73-001-AFM
Non-approved page
Revision: A2
7-25
Date of Issue: 15.04.2021
7.11
Electrical system
The airplane is equipped with 14V DC electrical installations with
grounded negative pole. Primary source of electrical power are two
generators. The secondary source of electrical energy is a 12 V battery,
located on the firewall. It is used for starting the engine, as buffer and as
a source of electric energy in the case of generator failure. Further
electric power is furnished by a back-up battery to the essential
indications of the Garmin system and the glareshield light. The L3-EIS
features its own separate internal back-up battery.
Three busses are defined:
1.) PILOT BUS / ALT1 which is powered from - Alternator 1
2.) BATT / ALT2 which is powered from Alternator 2 and the Battery
A normally closed bus tie circuit breaker links the two busses
3.)
AVIONICS BUS which is powered via the „Avionics switch“ from the
PILOT BUS