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How can electrical outlets work even though there is no grounding on airplanes? (And even lightning has no effect whatsoever!)

  • October 1, 2024
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flying in the sky Because you can charge your phoneit is not possible to speak of a wired system. So in the middle of the air How is

flying in the sky Because you can charge your phoneit is not possible to speak of a wired system.

So in the middle of the air How is electricity supplied in aircraft?

Airplanes use a different electrical system than we do.

us We use a wired electrical system. However, since it is not possible to keep the aircraft on the ground at an altitude of thousands of meters, the metal casing of the aircraft is used to ensure the safety of electrical sockets.

To explain it a bit more, normally grounding pin in home socketsWhen there is an increase in electrical current or a lightning strike, the excess electricity is conducted to the ground. In the aircraft, this function is performed by the metal structure of the aircraft.

The main energy producers of aircraft are the generators in their engines.

APU (Auxiliary Power Unit)

These generators supply energy to the aircraft with the motion they receive from the aircraft engine. Another energy giver are those found in their tails. APU (Auxiliary Power Unit) It’s a generator. In addition, an external power source is used to power the aircraft from outside.

The electrical current doesn’t care where the plane is as long as it can complete its circuit. Therefore, grounding the aircraft is achieved by using the metal housing of the aircraft. Moreover modern aircraftEven though it is often exposed to lightning strikes, the aircraft’s outer surface is electrically conductive, so it conducts current safely and does not harm passengers.

An auxiliary power unit or ground-connected power supply is used to meet electrical needs when the aircraft is on the ground or the engines are not operating.

In flight The energy produced by the engines is used and this energy is distributed to all electrical systems, including electrical outlets.

As for grounding, socketsprovides safe grounding using the metal structure of the aircraft fuselage. That is, to ensure the safety of the sockets, the metal body of the aircraft acts as a “ground” and in this way the sockets can be used safely.

Sources: Sky Brary, The Points Guy

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