A 480V, 3-phase feeder is 300 feet long and carries a continuous load of 100A. The conductors are aluminum (XHHW-2). Using a conductor resistivity of 21.2 ohms/kcmil-foot for aluminum, and given a 3% maximum voltage drop, what is the minimum required AWG size for this feeder? (Assume a power factor of 0.9).

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