Another Northern Ontario site has been robbed of copper wiring.  The latest theft took place at a Hydro plant in Sturgeon Falls and two men and a woman face charges.  West Nipissing police are still working on the value of the stolen wiring which is in excess of $5,000.  Police add more than $10,000 in damage was done to the hydro compound when the trio took the copper.  A little more than a week ago a Timmins business was damaged to the tune of $30,000.