Protection Devices
Device that is designed to be re-settable.
Circuit Breaker
SPST
Single Pole, Single Throw
The only conductor approved for splicing.
Copper
SWAMP
Severe Wind and Moisture Problem
Intermittent operation means that a system is not on for more than how long?
Two minutes
Aircraft fuse capacity is rated in:
Amperes
DPDT
Double Pole, Double Throw
Minimum distance a splice must be from a termination device.
12 inches
Maximum interval between identification markings:
15 inches
A coaxial cable should be routed:
As directly as possible.
A circuit breaker primarily protects:
Wiring from too much current
An electrical switch is used to:
Open and close a complete circuit
Maximum number of splices permitted between any two connectors.
One
The discharge of electricity at higher potentials is called:
An AWG number pertains to the size of a wire according to its:
Cross-sectional area / diameter / width
Non-trip-free, automatic reset, thermal switches (except inside motors).
Circuit breaker types not used in aircraft
Precision switch, actuated by a mechanical device, which depresses a plunger.
Microswitch
In a wire bundle, how should several splices be arranged?
Staggered along the length of the bundle
Provides mechanical protection to wires. Metallic or not, rigid or flexible.
Conduit
The purpose of including a diode in a relay or solenoid.
Remove current spikes
(Anti-spiking diode)
Number of spare fuses required by the FAA:
At least 50% of onboard fuses.
If you have 6, you need 3 spares. If you have 5, you still need 3, etc.
Electromagnetic switch
Solenoid / Relay / Contactor
The side of the circuit on which a pin (male) section of an AN/MS connector should be installed.
The ground side
The two fundamental properties of insulation:
Insulation resistance and dielectric strength
Bonding connections should be tested for:
Resistance value