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 ...

A. The calculation of a feeder or service load for existing installations can be based on the actual maximum demand under all of the following conditions [220.87]: 1) The maximum demand data for one ...

Last month in Code Basics, “Commercial Loads — Part 1,” on page 24 of the January issue, we discussed when it’s okay to apply demand factors when calculating ...

Proper load calculation and equipment sizing are essential to prevent overloads and ensure system reliability in boiler rooms Separating high-voltage and low-voltage wiring reduces electromagnetic ...