What is the maximum amperage when using an AN14-gage wire with a temperature rating of 150ºC in a 28-volt system with a continuous load?

The correct answer is based on the capacity of an AN14-gauge wire, which is generally rated for a maximum of 14 amps when used in a 150ºC temperature environment.

In aircraft wiring systems, the ampacity rating is influenced by several factors, including wire gauge, insulation type, ambient temperature, and the presence of continuous loads. For AN14-gauge wire, the specifications indicate that it can safely handle up to 14 amps in a 28-volt system without exceeding its thermal limits.

When considering a continuous load scenario, it’s essential to refer to the appropriate standards that govern electrical installations in aviation. Generally, continuous loads are acknowledged as loads that operate for three hours or more, and wiring systems must be designed to handle these conditions without overheating or causing damage. This rating ensures that the wire can carry the current continuously without risking insulation breakdown or other potential hazards.

Consequently, in this scenario, the maximum amperage that can be safely used with AN14-gauge wire in a continuous load situation in a 28-volt system is indeed 14 amps, which aligns with established electrical codes and safety standards in aviation.