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 ...

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 ...

ATLANTA – A new standard for determining load calculations will be developed by ASHRAE in cooperation with ACCA, the Air Conditioning Contractors of America, according to a joint statement from the ...

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 ...

Part III of NEC Art. 220 provides requirements for the calculated load of specific applications (after covering general loads and general lighting). Do you know the types of loads that are covered ...