Voltage Drop: VD = 2·K·I·L ÷ CM and Choosing a Size for 3 %
This lesson is part of the course
In this lesson
You look up the circular mils of six runs, calculate their voltage drop in volts and percent with the single- and three-phase formulas, and size the long barn feeder so it stays within an illustrative 3 % limit.
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Lessons in this course
- Ohm's Law & the Power Wheel: Volts, Amps, Ohms & Watts Locked
- Series & Parallel Circuits: Total Resistance, Current & Voltage Drops Locked
- Single- vs Three-Phase Power: √3, Power Factor, kVA & kW Locked
- Dwelling Load Calculation: VA per ft², Demand Factors & Service Size Locked
- Conductor Sizing: Ampacity, Temperature Correction & Bundling Factors Locked
- Voltage Drop: VD = 2·K·I·L ÷ CM and Choosing a Size for 3 % Locked
- Conduit & Box Fill: Percent of Area and Conductor Counts Locked
- Motor Circuits: Full-Load Current, Overloads & Breaker Sizing (Chart) Locked