Voltage Drop Calculations

Complete List of One Line Devices

All of the devices on your one line are tracked in our database.

Feeder Voltage Drop

The schedule includes a column for the voltage drop of each feeder.

Worst-case Branch Circuit Voltage Drop

Design Master displays the circuit with the worst voltage drop for each panel. You may then go back into your design to fix any problem circuits and run the calculation again to see if everything is solved.

Total Voltage Drop

The schedule includes a column for the total voltage drop, which is the sum of the feeder and the branch voltage drop.

Automatic Highlight of Problem Circuits and Feeders

Design Master will highlight any feeders or circuits that exceed the maximum voltage drop allowed by the NEC.

Calculations based on NEC Code

The maximum 3% voltage drop for both the feeder and the branch wire, as well as the 5% total voltage drop are taken directly from the NEC.

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