Table 8.
Corrected ground electrode resistance and impedance values.
| Month | kp | Grounding system resistance RkE (Ω) | Grounding system impedance RkE (Ω) | Average temperature | Note* | ||
|---|---|---|---|---|---|---|---|
| 4p | 3p | 2p | Impact method | °C | |||
| July | 1.4 | 0.286 | 0.386 | 0.238 | 0.243 | 19 | DM |
| August | 3.0 | 0.360 | 0.479 | 0.510 | 0.306 | 15 | DM, HR |
| September | 1.4 | 0.190 | 0.358 | 0.252 | 0.173 | 15 | DM |
| October | 2.2 | 1.866 | 0.815 | 0.557 | 1.433 | 8 | HM |
| November | 2.2 | 1.853 | 0.909 | 1.430 | 1.443 | 0 | HM |
| December | 2.2 | 0.994 | 1.231 | 0.660 | 0.705 | 2 | HM |
| January | 2.2 | 1.031 | 1.204 | 0.660 | 0.714 | -1 | HM |
| February | 2.2 | 0.800 | 1.203 | 0.682 | 0.631 | 3 | HM |
| March | 2.2 | 1.642 | 1.456 | 3.982 | 1.432 | 13 | HM |
| April | 2.2 | 1.959 | 1.434 | 4.224 | 2.100 | 7 | HM |
| May | 3.0 | 0.412 | 0.800 | 0.490 | 0.638 | 11 | HM, HR |
| June | 1.4 | 0.165 | 0.636 | 0.238 | 0.636 | 20 | DM |
*DM - “dry” month, HR - heavy rainfall, HM - “humid” month.