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| high-resistance soil (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) | |||
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| high-resistance soil (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) | |||