Resistors actual connection bar must consider the utilization factor ηt
R't = (Ω)
Investigation PL6.6 table (TL 1) we choose ηt = 0.83
So R't = (Ω)
Resistor amplifier spread of vertically buried pile R'c 6
(Ω)
Resistance of grounding devices include audio system and connect spindles horizontal.
We have:
(Ω)
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