Article 215 covers the installation, conductor sizing, and overcurrent protection requirements for feeder conductors. The requirements for feeders have some similarities to those for branch circuits.

Thank you for visiting one of our most popular classic articles. If you’d like to see updated information on this topic, please check out this recently published article, Requirements for the ...

Utilities traditionally have understood faults are an inescapable part of the distribution system. Overhead faults can stem from equipment failures and contact with objects. Faults can lead to ...

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Watch this video to learn more about what an electrical circuit is and how it works. Electrical energy flows around circuits which are loops made of metal wires. In this game, touching the wire with ...

Why is it that some electricians think when it comes to temporary electrical installations, anything goes? Is temporary power on a construction site, renovation work, or even a carnival inherently ...

We all carry supercomputers in our pockets and use dozens of electric gizmos every day but rarely stop to marvel at the magical act of flicking a switch. Use your ordinary conducting and extraordinary ...