Voltage Drop:
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Percentage:
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This calculator determines the amount of voltage lost across a wire using the calculated resistance of the wire and a load amperage.
The input voltage is used to calculate the percentage of voltage lost. In general, this value should not be greater than 5%. Less than 3.5% is preferred. These guidelines are used for AC power, but it is helpful to keep in mind with DC power as well.
Please also note that these calculations are theoretical and higher voltage drop may be experienced, especially in high temperatures.