Electrical Analysis for Preliminary Design

You can analyze and plan the connected load in a Revit model before placing physical electrical families using this workflow:

  • Define electrical analytical loads
  • Define the conceptual distribution system
Define Electrical Analytical Loads

When defining loads, you can define area-based loads and equipment loads.

  1. Create area-based loads to define a closed region and indicate power requirements based on power/area density. For example:
    • lighting in 2nd floor office spaces is 2w/ft2
    • while lighting in conference rooms is 3w/ft2
    • general power across the entire floor is 3.5 w/ft2

Assign equipment loads to define load requirements associated with major equipment components, such as elevators, chillers, or any other component beyond the general power density-based loads.

When you define the conceptual distribution system, you can create power sources, busses (panelboards and switchboards), transformers, and transfer switches. Like electrical equipment families, you can interconnect these components to sum loads in the distribution system. Additionally, you can then associate area and equipment loads with the busses to tabulate load on each equipment component in the system concept.