Step 3. Size the conductor per the required ampacity. Using the 60°C column, you see this circuit requires a conductor at least 4 AWG. OCPD sizing Size the OCPD per 430 Part III, noting that you use ...

Fig. 1. Neutral conductors that carry only unbalanced current from other conductors from the same circuit aren’t considered current-carrying conductors. • The neutral conductor of a 3-wire circuit ...

The National Electrical Code (NEC) specifies the neutral conductor in electrical cables must be white. The NEC doesn’t specify a color for hot conductors, but they are usually black or red.

The American Wire Gauge (AWG) system determines the standard gauge sizes. A higher wire gauge number means the wire is ...

Metals are good conductors of electricity because they contain free electrons. Insulators such as plastic and rubber do not contain free electrons and so are poor conductors of electricity.

Print News in Science Play dough circuits 2: experiment with electricity Last time, we went through the basics of how to make simple electrical circuits with play dough and light-emitting diodes ...

There's a long way to go before this is a reality -- just for starters, the circuit can only be erased by heating it on a hot plate. That's not exactly practical for a window.