Overvoltage
When voltage across/within a circuit is raised beyond the design limit / From Wikipedia, the free encyclopedia
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This article is about a concept in electrical engineering. For use in electrochemistry, see overpotential.
In electrical engineering, overvoltage is the raising of voltage beyond the design limit of a circuit or circuit element. The conditions may be hazardous. Depending on its duration, the overvoltage event can be transient—a voltage spike—or permanent, leading to a power surge.