What size aluminum wire for 100 amps undergroundservice 60 feet from meter?

Answer 1

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.

Answer 2

you would use #2 aluminum urd wire for a 100 amp service

Answer 3

Service entrance wire size required is # 2. That assumes the wire is a short run to the service panel.

Answer 4

A ground wire for a service distribution has to be copper. A #6 copper conductor can be used up to a 200 amp service.