The term “ampacity” is used hundreds of times throughout the Code and is defined in Art. 100 as “the maximum current, in amperes, that a conductor can carry ...

Did you know that conduits on the rooftops of commercial buildings can run more than 70°F hotter than surrounding temperatures? For example, depending on the height of the conduit above the surface of ...

Whether you're installing, extending, or rewiring a circuit, finding out the wire gauge and amperage you will need is a key first step. The gauge—or size—of the wire used needs to match the circuit's ...

There are two main considerations for sizing DC wiring from the output of a power supply to its load. They are ampacity (fancy term for the number of Amps) and voltage-drop (remember ohms law: V = I x ...

Many DIY enthusiasts have to contend with electrical wiring eventually in some capacity. The descent into this rabbit hole often begins with the fundamental question: What exactly is a wire gauge, and ...

In what is either an all-timer of a coincidence or President Trump directing the U.S. government to harm his perceived enemies (again), the Department of Energy is pulling $7.6 billion in grants ...