$9.)$ We are planning a fire sprinkler installation in an industrial building with numerous electrical conduit and

process piping obstructions.

a$)$ We have a $5-$inch diameter pipe so how close can a fire sprinkler be located from this piping?

b$)$ Same question circumstances as a$)$ above but now with a $1-$inch diameter electrical conduit?

c$)$ Why is there this spacing difference based on object diameters