Quantcast Figure 2-7. Effect of Rod Diameter Upon Resistance (2-6)

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GROUND ROD DEPTH IN FEET
Figure 2-6. Effect on Rod Length Upon Resistance. (2-6)
Figure 2-7. Effect of Rod Diameter Upon Resistance (2-6)
The earth surrounding the rod can be depicted conveniently as consisting of shells of earth of uniform thickness,
as shown in Figure 2-8. The incremental resistance (in the direction of current flow) of each shell is given by
(2-17)
2-18





 


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