"Shaun" fired this volley in
:

The AC switch that was used on the table saw that became permanently
turned "ON" was a standard house hold light switch that wasn't sealed.


Shaun, I think you just proved my point. The switch was not intended for
that exposure, nor was it intended to switch inductive loads.

Your situation is common, but not to be compared even diagonally with
installations that have designed-to-purpose switches.

LLoyd