Current peak (kA) | Soil resistivity | |||||
---|---|---|---|---|---|---|
\(\rho\)= 50 Ω.m | \(\rho =\) 500 Ω m | |||||
Impulse impedance (Ω) | Relative difference (in %) | Impulse impedance (Ω) | Relative difference (in %) | |||
With mutual coupling | Without mutual coupling | With mutual coupling | Without mutual coupling | |||
10 | 8.00 | 7.20 | 10.00 | 49.20 | 48.00 | 2.44 |
20 | 7.00 | 6.10 | 12.86 | 39.70 | 37.60 | 5.29 |
50 | 3.90 | 3.30 | 15.38 | 19.60 | 18.00 | 8.16 |
100 | 3.00 | 2.50 | 16.67 | 15.60 | 14.20 | 8.97 |