3/0 or250 aluminum
For Service Entrance Cable 600 kcmill (Thousands of circular mils).
A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.
Use AWG #1 copper service entrance wire and #4 copper ground wire.
For a 100 Amp breaker panel it would be 2 AWG. For 150 Amps it would require 2/0 (2 ought) aluminum wire.
3/0 or250 aluminum
Don't use aluminum wire inside the house.
For a 225 amp 208 volt 3 phase circuit, you would typically need to use a 3/0 AWG copper wire or a 250 kcmil aluminum wire. Be sure to consult with local electrical codes and regulations to ensure compliance with specific requirements for your installation.
Wire size is rated by Amperes of current. You did not mention the wire size of the aluminum wire, so there is no way to answer your question. The voltage rating is more a rating of how good the insulation around the wire is.
For Service Entrance Cable 600 kcmill (Thousands of circular mils).
A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.
Use AWG #1 copper service entrance wire and #4 copper ground wire.
For a 50 Amp load, a 6-gauge aluminum wire would be suitable for most installations. It is important to consult local electrical codes and regulations to ensure compliance with safety standards.
For a 100 Amp breaker panel it would be 2 AWG. For 150 Amps it would require 2/0 (2 ought) aluminum wire.
A 1600 amp service typically requires 500 kcmil copper wire or 750 kcmil aluminum wire. It's important to consult with a qualified electrician to determine the exact size and type of wire needed for your specific installation to ensure safety and compliance with local electrical codes.
2 AWG Aluminum.
A 15 amp breaker is not sufficient for a 225 amp load. You would need a breaker that matches the load current, such as a 225 amp breaker. Using a 15 amp breaker for a 225 amp load would cause the breaker to trip immediately due to overcurrent.