How does an airplane survive such a powerful encounter like lightning?

How does an airplane survive such a powerful encounter like lightning?

Do you know? 

There is a lightning certification test for aircraft to make sure that they are protected from lightning damage. The aircraft body is made of aluminum, so there are a lot of advantages like Light Weight, Corrosion Resistance, Electrical and Thermal Conductivity, Reflectivity, Ductility, Odourless, Impermeable, Recyclability. But when lightning strikes the body of the aircraft, the excellent electricity conduction characteristics of aluminum saves the plane from severe damages

Want to know why airplanes are not affected by lightning?

It is not that the lightning strikes the airplane but the airplane triggers the lightning when it flies through clouds. And when it is triggered, the airplane receives the lightning current in the front slightly narrowed tip (nose) or the rear wingtip. The sharp tip will be concentrated with charges so the lightning will be more attracted to it. So what happens is, the lightning electricity passes from the front slightly narrow tip (nose) or the wings through the external body and exits through the tail or vice versa without damaging the airplane. Thus airplanes act as a medium to transport current from one end to the other and then the current will be passed into the clouds again. Aluminum is used mainly because it is an excellent conductor of electricity and the engineers will make sure that All wires onboard are grounded or isolated away from the body. There will be no opening ( open circuit in the system) in the conduction path which is the body of the airplane. The current flow without any disturbance through the conductive outer shell of the aircraft. If there is an opening in the current flow path. The current will stay in the body of the plane causing heat, damaging the airplane structurally and electrically.