ABSTRACT
The chapter focuses on the equipment and systems used to detect fire and smoke together with the means of delivering the fire-extinguishing agent. It provides the reader with sufficient information to understand how this theory is applied through aircraft electrical systems. Fire on board an aircraft is a very serious hazard; all precautions must be taken to minimize the risk of a fire starting. In the event that a fire does occur, there must be adequate fire protection on the aircraft. Fire protection includes the means of both detecting and extinguishing the fire. The type of fire protection systems and equipment fitted to an aircraft can be sub-divided into specific areas of the aircraft: engines/auxiliary power unit, cargo bay, passenger cabin. The fire protection technologies used on aircraft depend on these areas and specified fire risk. Alternative and replacement agents are being developed, and these are gradually being introduced throughout the fire protection industry.
