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 ...

Suppose you have a 60A breaker supplying a branch circuit. What size conductors do you need for that circuit? One table in the NEC says No. 8; another says No. 4. Which one is right? What does the ...

The 2026 National Electrical Code clarifies rules for 10 amp branch circuits, conductor sizes and permitted uses for LED ...

Circuit breakers are essential safety devices that protect homes, commercial businesses, and industrial facilities alike. They serve as safeguards on electrical systems, preventing fires and other ...

The bulk of buildings lack operational performance data, which means that proper management is almost impossible. Jim Sinopoli, managing principal of Smart Buildings, looks at various technologies to ...

In Part 1, we looked at how to size a branch circuit and walked through a simple example. So if you’re sizing a feeder, why don’t you do it the same way? Except in cases where a feeder is also ...