On the elevator issue. NFPA 70 and 72 tell us "if" your going to do it here is how it needs to be done. In my area the last call has always been left to the elevator inspector. My first call is to the elevator inspector for any given jurisdiction to see what he says regardless of what the F.A. drawings say on new installs. I have never liked the idea of shunting the power since it could leave people in the car between floors. To me that has always seemed to be a major life safety issue.
