maximum current carrying capacity of a 182 square mm single copper conductor approximately 100 meters long?

Answer 1

REVISED *** No such thing!! Must be 185 sq.mm?? If so rating is 273 amps (If PVC insulated) for single phase if enclosed. Voltage drop is 0.25 mV/A/m

from table 4D1A

Answer 2

That sounds like a lightening rod. It'll take just about any current you could put through it.

Answer 3

200 amps