8
Georgia Tech
Fundamental Facts
Humans are susceptible to even low electric currents
Several Physical Phenomena will Result in Elevated Voltages of the Neutral of Electrical Installations and Interconnected or not Connected Grounds
•Perception: 1 mA,
•Let Go 20 mA,
•Ventricular Fibrilation 300 mA for 3 seconds
•Ground Faults
•System Imbalance
•High Impedance Ground Faults