GROUNDING DEVICE TO EQUALIZE POTENTIAL AT ENTRANCES AND EXITS TO TERRITORY OF ELECTRIC INSTALLATION Russian patent published in 1994 - IPC

FIELD: electrical engineering. SUBSTANCE: laying of conductors grounding device to equalize electric potential is carried out depending on depth of laying of grounding electrodes. In this case depth of laying of grounding electrode of parameter of grounding net is increased, at the same time depth of laying of other grounding electrodes of grounding net remains without change. EFFECT: enhanced efficiency of grounding. 3 dwg