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).

Mlulti-family service calculations can seem confusing, especially since you have a choice of methods — standard (Art. 220, Part II) and optional (Art. 220, Part III). But clearing up that confusion is ...

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 ...

Manual J 8th Edition is the national ANSI-recognized standard for producing HVAC equipment sizing loads for single-family detached homes, small multi-unit structures, condominiums, town houses, and ...

The New Fifth Edition of Manual N® details the load calculation procedure that addresses the advances in the commercial construction industry: new materials, methods of assembly, and operational ...

On Technetics’ customer layout, you will see a table detailing load type, total estimated seating load, total estimated end force, and total estimated load. This table provides information on the ...