The NEC contains detailed requirements for calculating service and feeder loads in many types of occupancies. Although most of these requirements are found in Art. 220, other rules affecting service ...

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 ...

Contractor University’s Cracking the Code Weekly Show. Using load calculations to identify the proper sized equipment can help build trust with your homeowners and differentiate your business for its ...

When spools or webs of continuous paper, wire, cloth, or plastic are manufactured and converted, the material is typically pulled off a roll, processed, and rewound — in unwind, intermediate, and ...