# Voltage Drop

Voltage drop, abbreviated as VD, is the electricity between the meter and where it is be used. It is basically impossible to have no voltage loss.

## Voltage Drop formulas

\(\large{ VD = \frac{2\;K\;I\;L}{cmil} }\) | (single-phase) |

\(\large{ VD = \frac{1.732\;K\;I\;L}{cmil} }\) | (three-phase) |

### Where:

\(\large{ VD} \) = voltage drop

\(\large{ cmil} \) = conductor cross-section area in circular mil

\(\large{ I } \) = connected load current (amps)

\(\large{ L } \) = length of conductor from source to load, one-way (feet)

\(\large{ K } \) = constant, ohms-cmil per ft

Tags: Equations for Electrical Equations for Cathodic Protection