Note: This article is based on the 2002 NEC. Even if you work with stamped drawings, you'll eventually need to do commercial load calculations in the field or on a licensing exam. The National ...

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 ...

Home electrical systems need adequate amperage capacity to support appliances and devices safely. Adding more capacity to a home’s electrical load may involve updating the service panel or installing ...

Courtesy of www.MikeHolt.com. Based on the 2020 NEC. Sizing the feeder or service load for a dwelling isn’t simply a matter of totaling the loads or breaker ratings. The Code recognizes there’s load ...