Based upon the IEEE formula, the calculated Arc Fault current Ifc is 12,230 amps. Using these two currents and the coordination curve one can estimate the time the circuit breaker and the fuse will take to clear the fault.
Bolted Fault Condition:
Fuse clears in 0.22 seconds
Circuit Breaker clears in 0.02 seconds
Arc Fault Condition
Fuse clears in 1.80 seconds
Circuit Breaker clears in 0.02 seconds
This was from Mike Holt's newsletter this morning.
