Connectors DC Power Distribution Flashcards
What are the four common sources of electrical power supplied to the aircraft?
DC alternators
DC generators
AC alternators
The aircraft batteries
What aircraft are AC alternators used on?
Transport category and some military aircraft
A simple power distribution system contains a basic copper conductor called:
a bus bar or bus
Each circuit is typically connected to what?
the bus through a fuse or circuit breaker
A wire system with several bus bars would normally be found on what type of aircraft?
Large and more complex aircraft
Busses are often categorized as (6):
AC
DC
Left
Right
Essential
Non-essential
What is a general concern relating to an aircraft’s electrical systems?
Short circuits starting fires
To protect the aircraft, adequate protective devices must be provided. These devices include:
Fuses
Circuit Breakers
Cut-out Relays
All resettable protection devices must be what?
trip-free
Electrical loads are considered to be either:
continuous or intermittent
Continuous load circuits are those that are typically in operation for MORE than:
two minutes
Intermittent load circuits are those that are typically in operation for LESS than:
two minutes or less
Prior to installing any electrical equipment in an aircraft, the tech must perform:
an electrical load analysis
All aircraft electrical systems are designed with:
a bus hierarchy
The most critical AC/DC systems are powered on which busses?
AC essential and DC essential busses, or standby busses
