"Ian" napisa³ w wiadomo¶ci
...
"Szczepan Bialek" wrote in message
.. .
Yes. The leakages are also unsymmetric:
"Coronas may be positive or negative. This is determined by the polarity
of the voltage on the highly-curved electrode.

Hello chaps. I've solved the puzzle of the what S* is. He's an
out-of-work comedy writer.
He says that in Poland they have a power supply that
operates with corona discharge as normal (I assume into the house) and
operates with lightning strikes as the norm.

"Outside this region of ionization and conductivity, the charged particles
slowly find their way to an oppositely charged object and are neutralized."

As a normal in the all country is leakage. Corona is from time to time.

"Physics, Electricity . the loss of all or part of a useful agent, as of the
electric current that flows through an insulator"

In overhead power supply the air is an insulator.

The both (corona and leakage) are nonsymmetric in AC.
So the ground is the only remedy.
S*