Aviation electrical

Interesting. Most of us members are concerned about NFPA 70E and CSA Z462. NFPE 70E article 90.2.B.1 excludes aircraft from coverage.

Any aviation topic is of interest to me, since I fly often on commercial planes.

One thing I did not see mentioned, the AC on planes is at 400Hz, not 50/60 as used on the ground. 400 Hz makes the generating equipment smaller. Reactive losses are greater, but transmission distance is no larger than, perhaps the extremities of an A380.