Custom Search
|
|
|
||
 MlL-HDBK-419A
I
I
I
I
I
I
I
I
I
I
I
I
10
11
12
8
9
6
7
4
5
1
2
3
0
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
|
 
|
|
|
||
