arc flash analysis

I recently received an Arc Flash Survey with a priority 1 item due to a breaker's fault current being too low. The breaker has an interrupt rating of 65k stamped on the break, however in the survey they rate the fault current down to roughly 25,500 what causes the breakers rating to be much less...

Hi, I'm a writer doing work for a local engineering software company, and some stuff I did for him has managed to get attention from some trade magazines. Two magazines expressed interest in perhaps some other contract work, and, well, frankly, I'd like to listen in to what engineers are...