Operators are being encouraged to periodically cycle the circuit breakers on their aircraft. The initiative applies to thermally activated breakers, which function mechanically to protect a circuit from overheating and from arcing damage. New arc fault circuit breakers (AFCBs) in development will be electronically rather than mechanically activated. The quicker reaction time of AFCBs provides an additional level of protection against overcurrent conditions. In the meantime, with traditional circuit breakers (CBs) installed, and aging in service, researchers have found that…
Cycling Circuit Breakers Can Improve Safety
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