I will be adding some heavy duty utilities (steam generator, work shop, whirlpool, hot tub, etc.) so I decided to upgrade my main service from 150 A to 200 A. I talked to an electrician and he said I need to run new 2/0 copper wire from the street electrical pole. My
150 A is fairly new, 8 years old, I don't know what gauge wire runs now from the street to 150 A panel but I checked the wire gauge chart and it seems the only wire can run is 2/0. Next in char 4 ga wire is rated only for 125 A so it cannot be used in 150 A service. How can I check what wire gauge I currently have and do I really need new wire for 200 A service?- posted
13 years ago