There are power pole wires behind the house, and the sound of electricity flowing? You know, the sound of electricity. I keep hearing that sound, but it's raining so I'm a little worried. Can I just leave it alone? I don't usually
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it's okay. Corona discharge in technical terms
In corona discharge, if any part of the electrode exceeds the limit, insulation breakdown of the air occurs and there is no flashover.
It means that the insulation of the air is partially broken and it discharges with a low sound and a faint light.
In other words, corona is a local discharge phenomenon just before a spark discharge.
The minimum voltage at which corona occurs is called the corona threshold voltage.
The corona threshold voltage varies depending on the surface condition, thickness, and distance between the wires. When it rains or snows, the threshold voltage rises.
As it descends, the insulation of the air is partially broken and a sound is generated or a faint light is emitted and the discharge occurs. This phenomenon is called corona discharge.
In particular, when it rains or snows, the threshold voltage goes down and corona discharge occurs more easily.
Therefore, since it has been raining a lot recently, it is a sound that appears because of it, so you can just leave it as it is.