Description should include the following:
- Most aircraft are equipped with either a 14- or a 28-volt direct current (DC) electrical system.
- A basic aircraft electrical system consists of the following components:
- Alternator/generator
- Battery
- Master/battery switch
- Alternator/generator switch
- Bus bar, fuses, and circuit breakers
- Voltage regulator
- Ammeter/loadmeter
- Associated electrical wiring
- Engine-driven alternators or generators supply electric current to the electrical system. They also maintain a sufficient electrical charge in the battery.
- Electrical energy stored in a battery provides a source of electrical power for starting the engine and a limited supply of electrical power for use in the event the alternator or generator fails.
PLT107