The rules for feeder and service load calculations differ from those for branch-circuit calculations. Do you know the differences? With branch circuits (Art. 220, Part II), you’re basically ...

ATLANTA - Guidance to help designers improve the performance and efficiency of design as it relates to load calculations is contained in a new book from the American Society of Heating, Refrigerating ...

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 ...

The NEC 2026 introduces innovative provisions like Power Control Systems and clearer interconnection rules, enabling ...

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 ...