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Agnostic
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How much will the humidity affect the breakdown voltage of air at STP.
What makes you think it has any effect at all?Agnostic said:How much will the humidity affect the breakdown voltage of air at STP.
Andrew Mason said:What makes you think it has any effect at all?
AM
Starting here you might find some useful commentary on the subjectAgnostic said:Common sense?
Humid air will have a much greater number of ions that can more easily facilitate a current through it.
Also, the breakdown voltage of dry air is 30kV/2.54cm.
I have a marx generator that has a maximum voltage of 55kV sparking over a distance corresponding to 100kV in dry air .
The breakdown voltage of dry air is typically higher than that of humid air.
The difference between the breakdown voltage of dry air and humid air can vary, but it is generally around 10-20%.
The presence of water molecules in humid air decreases its dielectric strength, making it easier for electrical breakdown to occur.
Yes, the breakdown voltage of both dry air and humid air decreases with increasing temperature.
Yes, the difference in breakdown voltage can affect the performance and reliability of electrical equipment, especially in high humidity environments.