 |
| |||
| высокоомный грунт (For example, in high resistance soils (soils with a resistivity exceeding 50,000 ohms-cm) the depth of the grounding system must be extended to extreme ... Alexander Demidov) | |||
|
| |||
| высокоомный грунт (For example, in high resistance soils (soils with a resistivity exceeding 50,000 ohms-cm) the depth of the grounding system must be extended to extreme ... Alexander Demidov) | |||