Question

What is the dimension of the copper strips used for the strip earthing​

Answer 1

Explanation:

Thumb Rule for Calculate Number of Earthing Rod

ρ = Resistivity of earth in Ohm-Meter.

L = Length of the electrode in Meter.

d = Diameter of the electrode in Meter.

K = 0.75 if 25< L/d < 100.

K = 1 if 100 < L/d < 600.

K = 1.2 o/L if 600 < L/d < 300.

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