- #1
Bararontok
- 298
- 0
What is the purpose of the grounding terminal in the plugs of some electrical appliances? Is it designed to act as an arrestor for unwanted electrical charge coming from lightning, static electricity, power fluctuations, and electrical arcs, sending the excess current to a grounding wire installed in the building which is plugged into the ground? If the grounding terminal is connected to the circuitry of the electrical appliance, will that not cause the electrical power from the grid to be conducted into the grounding terminal and damage electrical wiring? Or is there an automatic relay that uses a sensor to measure abnormal changes in electrical activity in the device circuitry so that only then will the relay switch on the connection to the ground line so that the ground can absorb the excess electrical charge?