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.

Q. How is the conductor ampacity for photovoltaic (PV) circuits calculated? A. PV circuit conductors must be sized to the larger of 690.8(B)(2)(a) or 690.8(B)(2)(b). Sizing according to 690.8(B)(2)(a) ...

The temptation to handle electrical projects yourself has grown stronger as home improvement costs continue to climb. Yet ...

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 ...

Before you submit an error, please consult our Video Help page. Steve Trash Science is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android ...

Modern homes depend on a safe and efficient electrical system to power everything from kitchen appliances to advanced entertainment setups.

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 ...

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 ...