This states that the voltage potential across the conductor is equal to the current flowing through the conductor multiplied by the total resistance of the conductor. Voltage drop is calculated using the most universal of all electrical laws: Ohm's Law. Distance - Enter the one-way length of the wires in the circuit in feet.
Wire Size - Choose the size wire in the circuit. To calculate ground wire size, use the Ground Wire Size Calculator.
One of these wires is a ground wire which can be sized down. For three-phase circuits, four wires are required. For single-phase circuits, three wires are required. This is typically single-phase or three-phase. Phases - Select the number of phases in the circuit. Common conductors are copper and aluminum. Conductor - Choose the material used as a conductor in the wire. For motors, it is recommended to multiply the nameplate FLA by 1. Amperes - Enter the maximum current in amps that will flow through the circuit. Single-phase voltages are usually V or V, while three-phase voltages are typically V, V or V. Voltage - Enter the voltage at the source of the circuit. AC and DC Voltage Drop Calculator with Formulas and Examples NEC It will also calculate the voltage at the load, and the percent voltage drop. The Voltage Drop Calculator will calculate the voltage drop across a circuit for long wire runs based on voltage, current, phases, conductor, wire size, and circuit distance.
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