Critical flashover voltage probability for Long String Insulators as a function of air pressure.

[miltonboss]

Dear Friends

Please your kind help , I need to find an equation to determine the probability of critical flashover voltage as a function of air pressure and / or air densities for an insulator string .

any paper or literature can help.

greetings
mc

 

[Power0020]

I believe you will find all you need in "Insulation Coordination for Power Systems", Andrew R. Hileman

 

[krisys]

You may find it in High Voltage Engineering by Kuffel & Abdulla. This book is available for free downloading.