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Pilot's Handbook of Aeronautical Knowledge
Aircraft Systems
Electrical System

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Pilot's Handbook of Aeronautical Knowledge



Table of Contents

Chapter 1, Introduction To Flying
Chapter 2, Aircraft Structure
Chapter 3, Principles of Flight
Chapter 4, Aerodynamics of Flight
Chapter 5, Flight Controls
Chapter 6, Aircraft Systems
Chapter 7, Flight Instruments
Chapter 8, Flight Manuals and Other Documents
Chapter 9, Weight and Balance
Chapter 10, Aircraft Performance
Chapter 11, Weather Theory
Chapter 12, Aviation Weather Services
Chapter 13, Airport Operation
Chapter 14, Airspace
Chapter 15, Navigation
Chapter 16, Aeromedical Factors
Chapter 17, Aeronautical Decision Making




A bus bar is used as a terminal in the aircraft electrical system
to connect the main electrical system to the equipment using
electricity as a source of power. This simplifies the wiring
system and provides a common point from which voltage can
be distributed throughout the system. [Figure 6-34]

Fuses or circuit breakers are used in the electrical system to
protect the circuits and equipment from electrical overload.

Spare fuses of the proper amperage limit should be carried
in the aircraft to replace defective or blown fuses. Circuit
breakers have the same function as a fuse but can be manually
reset, rather than replaced, if an overload condition occurs in
the electrical system. Placards at the fuse or circuit breaker
panel identify the circuit by name and show the amperage

Electrical system schematic.
Figure 6-34. Electrical system schematic.