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  2. Arc-fault circuit interrupter - Wikipedia

    en.wikipedia.org/wiki/Arc-fault_circuit_interrupter

    This AFCI (the circuit breaker with the yellow label) is an older generation AFCI circuit breaker. The current (as of 2013) devices are referred to as "combination type." An arc-fault circuit interrupter ( AFCI ) or arc-fault detection device ( AFDD ) [ 1 ] is a circuit breaker that breaks the circuit when it detects the electric arcs that are ...

  3. Arc fault - Wikipedia

    en.wikipedia.org/wiki/Arc_fault

    A problem with arc fault circuit breaker is they are more likely to produce false positives due to normal circuit behaviors appearing to be arc faults. For instance, lightning strikes on the outside of an aircraft mimic arc faults in their voltage and current profiles.

  4. Residual-current device - Wikipedia

    en.wikipedia.org/wiki/Residual-current_device

    A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage protection device, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...

  5. Talk:Residual-current device/Archive 1 - Wikipedia

    en.wikipedia.org/wiki/Talk:Residual-current...

    For example, my rather small house has a 42 pole panelboard (only about 20 poles installed, though; 240 volt appliances get 2-pole circruit breakers), 200 ampere main circuit breaker, with no GFCI circuit breakers mounted and only one AFCI panel mounted circuit breaker for the bedroom receptacles; there are GFCI receptacles for bathroom ...

  6. Overcurrent - Wikipedia

    en.wikipedia.org/wiki/Overcurrent

    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. [1]

  7. Electrical fault - Wikipedia

    en.wikipedia.org/wiki/Electrical_fault

    An open-circuit fault occurs if a circuit is interrupted by a failure of a current-carrying wire (phase or neutral) or a blown fuse or circuit breaker. In three-phase systems, a fault may involve one or more phases and ground, or may occur only between phases. In a "ground fault" or "earth fault", current flows into the earth.

  8. Circuit breaker - Wikipedia

    en.wikipedia.org/wiki/Circuit_breaker

    Arc-fault circuit interrupter (AFCI) or arc-fault detection device (AFDD) — detects electric arcs from the likes of loose wires. Recloser — A type of circuit breaker that closes automatically after a delay. These are used on overhead electric power distribution systems, to prevent short duration faults from causing sustained outages.

  9. National Electrical Code - Wikipedia

    en.wikipedia.org/wiki/National_Electrical_Code

    One GFCI receptacle can serve as protection for several downstream conventional receptacles. GFCI devices come in many configurations including circuit-breakers, portable devices and receptacles. Another safety device introduced with the 1999 code is the arc-fault circuit interrupter (AFCI). This device detects arcs from hot to neutral that can ...