Minimum distance from grounding stake of distribution box
Minimum distance between any part of MV ground system and nearest LV neutral ground shall be 4 meters. Every MV equipment installation shall be grounded with minimum of 4 ground rods. 26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. Before deciding to install ground wire in place of ground rods it should be investigated if normal (non rocky soil) soil is available with in a reasonable distance (up to 50 meters) from the installation and along the cable trench. Today, we're diving deep into the world of distribution box grounding, breaking down the standards, and shining a light on those sneaky mistakes that even experienced electricians sometimes make.
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