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Not so far. The highest voltage yet attained for current electricity is 5 million volts: The highest electrical potential ever produced by man, over 5,000,000 volts, has been achieved in the laboratory of Dr. Gregory Breit and Dr. M.A. Tuve at the Department of Terrestrial Magnetism of the Carnegie Institution of Washington.
69 kV-230 kV are referred to as âhigh voltageâ and voltages 230 kV-1,100 kV are referred to as âextra high. voltage,â with 1,100 kV also referred to as âultra high voltage.â The emphasis of this guide is on low and. medium voltage distribution systems.