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Resistance of an earth mat

Resistance of an earth mat

Resistance of an earth mat

(OP)
I am planing to install a buried copper lattice tape earth mat. 900mm x 900xx mesh of copper tapes 3mm x 25mm.

I have performed calculations for substation earthing grids but cannot find the formulae for calculating the resistance.

Help would be greatly appreciated

RE: Resistance of an earth mat

IEEE 80 has a fairly simple empirical calculations for earthing grids. I'm not sure it would be valid for such a small electrode though.

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