Block 4 Electrical Systems Flashcards
Electrical shock occurs when current passes through the human body, the current will pass through the bodies ________ system and ________ system to ground.
Nervous system and Vascular system
______ _______ are high voltage areas that require removal of aircraft/external power prior to entering to perform tasks.
Load Centers
Voltage is the force that causes current to flow in a circuit. What is it measure in?
Volts ( V )
Current is the movement of electrical charge through a circuit. What is it measured in?
Amperes ( A )
Resistance is the opposition to the flow of electricity, controlling the amount of voltage or amperage in a circuit. What is it measured in?
Ohms ( Ω )
Hertz is an electrical unit of frequency equal to one cycle per second. (cycles per second=Hertz) What is the symbol for Hertz?
( Hz )
A ____ is a distribution point in an aircraft electrical system to which the battery and/or generators are connected.
Bus
What 3 components provide AC electrical power to the aircraft?
1 APU Generator, 2 Engine IDG’s (Integrated Drive Generators)
What components are employed in Power Distribution Systems to control power to and from the buses?
Transfer Relays and Sensing Relays
What 2 types of circuit breakers are used on the P8-A?
Push-Pull type and Electronic type
Where are the Voltage Regulator and Supervisory Panels located?
Main Load Center
What type of aircraft batteries and how many are installed on the P8-A?
2 Nickel-Cadmium (NI-CAD) batteries are installed in the E & E bay supplying DC power for starting and standby power operations.
