minimum gauge is 6 and the best is 4
With thick wires that have excellent insulation.
A 3/0 copper conductor with an insulation rating of 90 degrees C is rated at 225 amps.
Assuming you are working with 240v, you need 4/0 copper conductors.
Yes, they are the same size wire.
A 200 amp service panel will require a # 4 bare copper ground wire.
A 3/0 copper conductor will limit the voltage drop to 3% or less when supplying 200 amps for 200 feet on a 240 volt system.
A wire size of 250 MCM will limit the voltage drop to 3% over a distance of 200 feet.
With thick wires that have excellent insulation.
The wires can be as long as they need to be to make the connection. It is a fact that as the length of the wires are increased, the size of the wire also has to be increased, to over come the voltage drop due to the internal resistance of the wire. A 3/0 copper conductor with an insulation factor of 90 degrees C is rated at 210 amps. This is the normal size for a 200 amp service. If the service is further away, then the increasing of the wire size starts at 3/0.
6
A 3/0 copper conductor with an insulation rating of 90 degrees C is rated at 225 amps.
Assuming you are working with 240v, you need 4/0 copper conductors.
Yes, they are the same size wire.
A 200 amp service panel will require a # 4 bare copper ground wire.
Service wire required is AWG # 3/0 copper.
200 and 100
3/0 wire 3/0 wire