Streamlining Electrical Load Calculations

Original Presentation Date: May 27th, 2020

Electrical safety includes proper selection of conduit, wire and breaker sizes based on loads, distance, ambient temperature and other factors. This program walks through a detailed MS Excel worksheet designed to simplify the many factors promulgated in the National Electric Code.

1:00 hour -Watershape University is authorized by IACET to offer 0.1 CEUs for this program.

CEUs are awarded for successfully logging completion of this webinar through the course curriculum page after viewing the lecture. Further instructions for registering your completion of this course are posted on the course curriculum page below the webinar recording.


  1. Define the variables that affect electrical load design including voltage, amperage, number of poles, continuous vs. non-continuous operation and other factors.
  2. Use custom MS Excel worksheets to design electrical circuits and panels.
  3. Calculate feeder circuit size.
  4. Evaluate existing main panel to determine if it has the capacity to feed a new subpanel.

If you wish to purchase the MS Excel worksheet demonstrated in this webinar, please enroll in the PREMIUM WEBINAR version of this course, where the worksheet is available as a download.

A free Wolfpack Webinar

This course is part of our Weekly Wolfpack Webinar series, conducted live every Wednesday at 3pm Eastern/Noon Pacific, and archived as a recording shortly after the live session concludes.