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g_nraja
Active Contributor

Join Date: Oct 2008
Posts: 23

Earthmat Calculation - Electrode Length

12/16/2008 3:20 AM

Dear sir,

In Earthmat calcluation length electrode has to be findout by the following formula as per IS 3043 or IEEE 80 L min = KmKiIgsqrt(t)/(157+0.235CsRs) in this

Km = 1/2pi Ln(D^2/16hd) + 1/2pi Ln(3/4)(5/6)(7/8)..........(n-2) terms where n=2

pl reply how to expand the above formula Km and also to reply how to fiind out the number of parallal grid conductors
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g_nraja
Active Contributor

Join Date: Oct 2008
Posts: 23
#1

Re: Earthmat Calculation - Electrode Length

12/17/2008 5:27 AM

dear all

here i typed n=2 instead of 36...pl consider n=36 .Anybody can answer this questiion.......please....
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#2

Re: Earthmat Calculation - Electrode Length

04/16/2024 7:32 AM

It would be quicker to find a Mentor locally. Telephone?

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