Calculations

The articles in this section explain how different calculations work or provide additional context to calculation-related concepts in ElectroBIM.

📄️ Arc-Flash Trip Times

You can select a breaker or enter a trip time manually to calculate arc-flash values. If you don't have that information, here is a way you can estimate the trip time.

📄️ Voltage Drop and Transformers Options

ElectroBIM offers three options for how to calculate voltage drop at transformers.

📄️ Reading and Configuring Time-Current Curves

A brief explanation of what each part of the time-current curve represents and how you can make changes to the curve.

📄️ Electrode Configurations for Arc-Flash Calculations

This article will help you determine the electrode configuration for your distribution equipment, in order to perform arc-flash calculations.

📄️ Arc-Flash Settings and Sensitivity (IEEE Std 1584-2018)

There are several factors that can influence arc-flash calculations, such as the working distance and the electrode configuration.

📄️ Required PPE Not Included In Arc-Flash Schedule

PPE requirements are not included in arc-flash schedules based upon guidance from NFPA 70E.

📄️ How Building Angle Affects Calculations

The Building Angle setting offsets the axes along which wire length calculations are performed, which can significantly impact several figures in your project.

📄️ Customizing Selective Coordination Graphs in ElectroBIM

Using the Project Options command and standard Revit functionality, you can easily customize the appearance of your selective coordination graphs.

📄️ How Branch Circuit Voltage Drop is Calculated in ElectroBIM

ElectroBIM approximates voltage drop for branch circuits by measuring the average panel-to-device distance for each device on the circuit. This article details when this method works and it when it doesn't.