If you're planning to increase your electrical load by adding a new major appliance, make sure your panel can handle it. Here's how.

Series Circuit Calculations provides a comprehensive overview of the rules and formulas used to calculate and predict electrical quantities and capacity. Using a direct current (DC) series circuit as ...

Parallel Circuit Calculations provides a comprehensive overview of the rules and formulas used to calculate electrical quantities and capacity. Using a direct current parallel circuit as an example, ...

Feeder and service load calculation requirements can be found in Part III of Art. 220 in the 2014 NEC. As noted in Sec. 220.52(B), "A load of not less than 1,500VA ...

DNA contains the genetic code that makes humans different from other species of animals and even from each other. Researchers, however, have discovered other uses for the so-called blueprint of life.

Precision transformer circuits play key roles in applications such as TRA bridges. Here’s an equivalent circuit that surpasses most others when looking to meet those accuracy demands. If you search ...

Note: This article is based on the 2008 NEC. A dwelling unit is a single structure that provides complete and independent living facilities, according to the NEC definition found in Art. 100 (Fig. 1).