Grounding transformer Product Description:
1, have enough depth.
2, in the soil resistivity of the formation is not too high, it is necessary to increase the number of sub-grounding
3, high resistance in the soil layers, each grounded in the following 0.5M around, 1.2M fill more than layers of chemical filler release
4, the high rate of resistance in the soil strata should be used for soil digging method.