ABSTRACT
This chapter describes the physical construction of wires and cables together with how they are protected from overload conditions before power is distributed to the various loads on the aircraft. It addresses airframe wire and cable applications in detail. The chapter describes screening and shielding to protect against electromagnetic interference and electromagnetic compatibility. Wiring installed in aircraft has to operate in a harsher environment than that found in cars, buildings or industrial applications. General-purpose wiring used in the airframe comprises the majority of the installed material. Circuit-breakers are electromechanical devices that interrupt and isolate a circuit in the event of excessive current. Certain circuit-breakers are fitted with removable collars so that they can be readily identified. The circuit-breaker current rating is engraved on the end of the button. Conductors must be insulated to prevent short-circuits between adjacent circuits and the airframe.
