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Industry Terms

Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload (see definition), short circuit, or ground fault. A current in excess of rating may be accommodated by certain equipment and conductors for a given set of conditions. Hence the rules for overcurrent protection are specific for particular situations.

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Overcurrent (Wikipedia)

In an electric power system, overcurrent or excess current is a situation where a larger than intended electric current exists through a conductor, leading to excessive generation of heat, and the risk of fire or damage to equipment. Possible causes for overcurrent include short circuits, excessive load, incorrect design, an arc fault, or a ground fault. Fuses, circuit breakers, and current limiters are commonly used overcurrent protection (OCP) mechanisms to control the risks. Circuit breakers, relays, and fuses protect circuit wiring from damage caused by overcurrent.

The inside of a voltmeter in which at least one of its resistors has burned out due to an overcurrent caused by exposing the voltmeter to a voltage (230 V) higher than the maximum expected (30 V)
The inside of a voltmeter in which at least one of its resistors has burned out due to an overcurrent caused by exposing the voltmeter to a voltage (230 V) higher than the maximum expected (30 V)
Overcurrent (Wiktionary)

English

Etymology

From over- +‎ current.

Noun

overcurrent (countable and uncountable, plural overcurrents)

  2. A larger-than-intended electric current.
    Synonym: overamperage
    Coordinate term: overvoltage

Derived terms

  • overcurrent protective device

Translations

 Read More
excessive current, electrical overload, circuit surge, power spike, amperage overflow

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