For Service Entrance Cable 600 kcmill (Thousands of circular mils).
2 AWG Aluminum for 100 Amp Service.
250 MCM aluminum minimum
A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.
A 3/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 150 amps for 150 feet on a 240 volt system. This size will allow the conductor to be loaded to 120 amps. 150 x 80% = 120 Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 150 amps then you would need to use a wire with a rating of 190 amps. 190 x 80% = 152 amps A 4/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 190 amps for 150 feet on a 240 volt system.
A #3 copper wire with an insulation factor of 75 and 90 degrees C is rated at 100 and 105 amps respectively.
A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.
250 MCM aluminum minimum
A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.
Copper is preferable to aluminum and the size of wire should be the same or the next size down if copper is used.
This is a voltage drop question. To receive an answer to this question the voltage of the service must be stated.
A #1 aluminum wire with a insulation factor of 90 degrees C is rated at 105 amps. Three #1 wires can be installed into an 1 1/2" conduit.
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.
Don't use aluminum wire inside the house.
4 sets of 750 mcm aluminum. Or four parallel runs of 600 MCM copper.
aluminum wire violates code for any use anywhere in US. If this is true, why would aluminum wire be sold? I know it is used for service entrance.
A 3/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 150 amps for 150 feet on a 240 volt system. This size will allow the conductor to be loaded to 120 amps. 150 x 80% = 120 Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 150 amps then you would need to use a wire with a rating of 190 amps. 190 x 80% = 152 amps A 4/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 190 amps for 150 feet on a 240 volt system.
A #3 copper wire with an insulation factor of 75 and 90 degrees C is rated at 100 and 105 amps respectively.
Today the only use of aluminum wire is in service entrances and underground feeds where the larger sizes are needed. By using aluminum the overall project wire costs are kept to a minimum even with the bigger size needed over copper. Wiring branch circuit in aluminum has not been vogue for many years now.