You can get some info on KAIC calcs...
Allow me to be picky. The correct phrase is "you can get some info on SCA calcs...".
AIC means Amps Interrupting Capacity - this is a rating supplied by the manufacturer you can not calculate it. It is only available by testing.
SCA is Short Circuit Amps - this is what you calculate.
SCCR is Short Circuit Current Rating - this equipment rating can be determined in the field.
NEC 110.9 and 110.10 require that your equipment be rated for the available SCA.
If you want an entire copy of the Bussmann 2008 SPD you have to pay for it. However I have found that you can download the individual sections, one at a time, for free.