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 ...

A multifamily dwelling is one that contains three or more dwelling units [Art. 100]. Though similar, single and multifamily dwellings have distinct differences. The wiring method used for a ...

Not long ago a residential load calculation — also known as a heat loss calculation or a load calc — was something you had the luxury of skipping. There was a good reason for avoiding it. It was ...

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 ...

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 ...