Calculate Voltage Drop

The Calculate Voltage Drop command is used to calculate and display the voltage drop on a circuit. The voltage drop is calculated based upon the path of the loops on the drawing.

If you add or remove any loops, run this command to update the calculated voltage drop for the circuit.

The Voltage Drop Calculation Parameters used to calculate the voltage drop are saved for each circuit. Use this command to update the Voltage Drop Calculation Parameters associated with a circuit.

To calculate the voltage drop of a given circuit, go to

DM Electrical->Circuiting and Homeruns->Calculate Voltage Drop

You will be prompted to select a device on the circuit for which the voltage drop is to be calculated

Select device on circuit:

After you select a device, a Design Master Electrical dialog box will appear that displays the voltage drop on the circuit. The voltage drop is also printed on the command line.

Circuiting and Homeruns--DM Electrical voltage drop dialog box

The voltage drop is calculated based upon the paths of the loops on the drawing. The load on each loop is adjusted based upon the specific devices that are connected to the loop.

The distance that is displays is the length of the longest run of wire on the circuit. It does not necessarily correspond to the path of the highest voltage drop.

The distance between devices is calculated based upon current the Voltage Drop Calculation Parameters. See the Set Looping Options section for more information. This command can be used to change the Voltage Drop Calculation Parameters associated with a circuit.


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