To use the tables in 70e it saids that we have to use the notes. In the notes it asks for two things.
1. we have to find the maximum ka scc available
2. maximum fault clearing time.
We find the ka ratings on the circuit breakers and the clearing times should be in the manufacturing company catalog that sells breakers .
Would this be a way of solving those two requirements ? Or are there calculations or other means for those two requirements ?