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Soil is the main bar or sheet metal buried in the soil the spread or spread charge or electric current to flow into the soil conveniently. The object to be used as the main soil, such as gold, red 16 diameter mm(5 / 8 inches) long, no less than 2.40 meters.
.Extension into the ground is used on the tendon between main soil with the required grounding, which here means. The main line between soil and connector cables zero or grounding terminal in switch main switch given (cabinet).
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