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dhiraj.kumar
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Join Date: Jun 2012
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Earthing Calculation in IEEE80

06/14/2012 3:13 AM

Corrective weighting factor that emphasises the effect of grid depth in Eq. 83/IEEE 80-2000. Can somebody please explain me the reference depth and the background of the correction factor [Kh = sqrt(1+h/h0)]?
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Wal
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#1

Re: Earthing Calculation in IEEE80

06/16/2012 3:51 AM

.....how about providing some URLs to the referenced section you want explained?

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dhiraj.kumar
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#2
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Re: Earthing Calculation in IEEE80

06/19/2012 2:55 AM

http://www.openelectrical.org/wiki/index.php?title=Earthing_Calculation

This is a very nice synopsis of IEEE80-2000.
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Wal
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#3
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Re: Earthing Calculation in IEEE80

06/20/2012 1:31 AM

Thanks.

Equation 83 was not explored in that......

Are you sure it is h/h0? Alternatively, can you define the variables h and h0? I am assuming h is the depth in metres... what is h0?

There is a depth factor that is dependent on the grid area. Is that where you are at?

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