Definition of "overvoltage" []

• The difference between the electric potential of an electrode or cell under the passage of a current and the thermodynamic value of the electrode or cell potential in the absence of electrolysis; overpotential. (noun)
• The hazardous condition that occurs when the voltage in a circuit is raised above that for which it was designed. (noun)

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• "The direct earthing of a point of the network is prevented by installing a so called overvoltage protector."
• "I tried using the bad jack on an identical motherboard and it caused an "overvoltage" (over-amperage for the engineers) there, too."
• "And overvoltage and undervoltage refer to a voltage with a value at least 10% above or below, respectively, the nominal voltage for a period of time greater than 1 minute."