overvoltage

This term is primarily used in technical, engineering, and electrical contexts to describe a specific failure state or a transient spike in electrical potential. It carries a negative connotation of risk, as it typically implies a threat to the integrity of electronic components or the safety of a system.

In professional documentation, it is often contrasted with undervoltage. While it can refer to a sustained state of high voltage, it frequently describes a momentary surge, such as those caused by lightning strikes or switching operations in a power grid.