you would use #2 aluminum urd wire for a 100 amp service
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.
2 AWG in Aluminium is required.
Please use the Discussion Area to explain the significance of the "100 feet".
A 1/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 30 amps for 500 feet on a 240 volt system.
A #6 aluminum conductor will limit the voltage drop to 3% or less when supplying 40 amps for 110 feet on a 240 volt system.
A 2/0 aluminum conductor, with an insulation factor of 90 degrees C, when supplying 100 amps for 200 feet on a 240 volt system, will work.
A #6 aluminum conductor will limit the voltage drop to 3% or less when supplying 20 amps for 200 feet on a 240 volt system.
1 meter = 3.28084 feet 1 feet = 0.3048 meter
1 meter = 3.28 feet.
Meter's are bigger, 1 meter = 3.2808399 feet.
1 meter is 3.25 feet
1 meter = 3.28084 feet