That kASC is, in your view, not a correct/traditional notation does not mean that the term is not in use -- constantly, if Bussman is to be followed.
I perform short circuit calculations for my living as a power systems engineer. I have been doing so for many years and have never come across the acronym kASC. I do not find it in my copy of UGLY'S (but it is the 1990 edition. It is not in my copy of Bussmann's SDP dated 2002. I do not see it in SKM's Power tools for Windows (one of the premier power system software programs) nor in any of IEEE's color books.
I just downloaded Bussmann's latest copy of SPD, and searched for both ASC and KASC, and neither was found.
I stand by my statement that KASC is not, currently, a commonly used acronym within our industry.
