I understand that 3 phase has 3 conductors (excluding neutral) and all three conductors supply power. My question: If I had a 480 volt, 10 Amp 3 phase power supply, would the voltage be split across the 3 phases or would the amperage be split across the three phases? Or would each phase of the 3 phase power supply have 480 volts at 10 amps? Also how would I calculate wattage of a 3 phase power supply? Thanks, these may be stupid questions but i'm kinda confused .