kASC
kilo Amps Short Circuit
This is a metric related to the inverse impedance of a system.
Say what????
I have been working with fault currents since 1974.
Never in my life have I heard of kASC or the "inverse impedance of a system" with your description.
Available Short Circuit Amps (SCA) is always supposed to include the short circuit amps from all sources, utility, generators, motors etc.
Most likely someone has transposed some letters, and used a numeric suffix as a prefix.
