According to the ratio a/=5/2.4 ≈ 2, the vertical pile grounding is designed with an interval of 5m and a distance of 3m from the workshop buttocks; The service coefficients for selecting piles and connecting rods are η=0.81 and η=0.86, respectively, for connecting bare copper wire piles with a cross-sectional area of F=50mm ², a diameter of dt=8mm, and a total length of 4x5=20m.
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