Aircraft Electrical System

In the early days of what is familiarly called "aircraft electrics", there was a certain distrust of the equipment, Although there was acceptance of the fact that electricity was necessary for operating the "wireless" equipment, a few lights and an engine ignition system, many individuals were inclined to the view that if other systems could not be operated either by air, hydraulic oil, cables, numerous mechanical linkages or petrol.

With the continued development of the various types of aircraft, the sources of electrical power have also varied from the simple battery and wind-driven generator, through to the most complex multiple AC generating systems. Similarly, the application of power sources have varied and in conjunction with developments in electronics, has spread into the areas of other systems to the extent of performing not only a controlling function but, as is now so often the case, the entire operating function of a system.

The satisfactory performance of any modern aircraft depends to a very great degree on the continuing reliability of electrical systems and subsystems. Improperly or carelessly installed or maintained wiring can be a source of both immediate and potential danger. The continued proper performance of electrical systems depends on the knowledge and technique of the mechanic who installs, inspects, and maintains the electrical system wires and cables.

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