im changing from 100 amp fuse box to 200 amp breaker box and wanted to know what type of wiring is used to go from inside breaker box to meter outside

 

The most common wiring between the meter socket and panel for a residential 200 amp single phase service is probably 4/0 aluminum service entrance cable, called SEU. I prefer copper service wiring and would probably use 2" conduit and 2/0 copper THHN wire.

 

thanks so just make sure we are understanding use 4/0 aluminum from meter to breaker box and is it the same for meter to pole

 

No. It would be the same from the meter to the weatherhead (if it's an overhead service). From the service to the pole is the responsibility of the power company and would most likely be smaller because it's in free air.

 

I wrote a underline there and Nope the POCO have it own set of overhead conductors which they will have diffrent rating and generally their conductor will be alot smaller than the conductor in the conduit.

Also when upgrading make sure you let POCO know some case they may ask you to move the drop point to order meet their requirement.

Also let me add this part make sure you have proper permit many POCO will not reengerized the service until it is inspected { I know few area may not have inspected } and the homeowner can do it if the local code allowed.

And there are few more items you will have to add to this is two new ground rods and you will need 16mm² {#6 AWG } bare conductor for your ground rods but becarefull some will required 25mm² {#4 AWG } for grounding conductor and bonding that you need it if you have water pipe which it have more than 10 feet copper water pipe.

So check with your local officals for latest info with your area requirement.

Merci.
Marc