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How do you calculate 208v 30 amp circuit draw. Do you add the three phases and divide by 3 for an average?
Wiki User
∙ 13y ago
if you read all three phases with a clamp on amp meter, they should be just about the same. So, yes, it's fine to add the three together and divide by 3 to get the exact average, but really, they should be so close to the same that it doesn't matter. Then you must take that number and multiply by 1.732 to get the real amp draw.
Wiki User
∙ 13y ago
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The US Naval Observatory's web site has a calculator that will allow you to see the phases of the Moon, or to calculate the times of sunrise and sunset. Check out the link below
