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 ...

The Wind Load Shear Wall Calculator is a shear wall design calculator for the iPhone or iPod Touch. It is a tool for engineers, architects, and builders, as well as students to design shear walls to ...

This is part 1 in an ongoing series on HVAC load calculations. The folks at SNIPS have asked me to do a basic how-to article about HVAC Manual J load calculation as that is allegedly a big part of my ...

For the PDF version of this article, click here. Many electronic circuits can rapidly shift between a sleep state and full load operation, placing a heavy requirement on the power converter to ...

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).