re: home electrical question

quote:

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Generally speaking, the lower the voltage, the more amps.

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For a motor, lighting fixture, etc... yes. A 120V 1hp motor is designed to draw more current than a 277V 1hp motor. But when you're talking about a fault or a short, where current is passing through a person instead of electrical equipment:
current = voltage/resistance.

Your body's resistance is what it is. The higher the voltage, the higher the current passing through you. If 120V kills more people than other voltages, it's because it's much more prevalent.