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ekstra   ara
 Post subject: Flash over distance
PostPosted: Fri Dec 26, 2008 7:00 am 
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Joined: Fri Dec 26, 2008 6:53 am
Posts: 1
I hope someone can help.

I want to get the mathematical formula to calcutate the spark over or flash over distance between 2 conductors / busbars.

I was taought the rule of thumb is 25mm per 1000 volt i.e 22000 volt the flash over distance is then 550 mm if the conditions is favourable.

Do I have this correct or am I totally off the point.

I will be glad if someone can help

Thanks


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