Based on the 2020 National Electrical Code. Part 1 of this two-part series taught you how to calculate branch-circuit loads. Now let's review how to perform feeder and service load calculations.

Article 100 defines “demand factor” as the ratio of the maximum demand of a system (or part of a system) to the total connected load of a system (or part of a system). Using demand factors is a way to ...

The electrical panel, also known as the service panel, is the control center for all the electrical circuitry in a residence. Today’s panels are bigger than earlier versions. They have to be, because ...