Electrical Fundamentals

Copper-clad aluminum (CCA) wire is growing in popularity across the United States, but some people may have questions about best practices for terminating these wires. This article addresses these common questions and explains how the UL 486C standard continues to provide a high margin of safety. The discussion concludes with practical guidance for inspectors and authorities having jurisdiction (AHJs) on spotting wire connectors specifically designed to provide corrosion and thermal protection in CCA installations.

Let’s explore the history of service definitions and the industry’s shifting understanding of what constitutes a service to inspire future discussions.

Learn about high-rise fire protection features and get resources to teach community residents about high-rise fire safety.

Whether you are a master electrician or a fresh apprentice, a refresher on the basics of electrical tools and systems can help you stay safe on the job.

Let’s discover the evolution of GFCI protection requirements for kitchen receptacles in dwelling units, from the 1987 NEC to the 2023 NEC.

Breaking down complex code topics can simplify the process of applying the NEC to electrical installations for code enforcers and installers.

Let’s address questions that have been raised about the allowed methods to comply with section 250.148 when installing branch circuit wiring with devices in metal device boxes

OSHA 3080 identifies ways to prevent worker injury through the proper use of the tools and through the use of appropriate personal protective equipment.

When a school or part of a school is designated as an emergency shelter, it upgrades the school to a Risk Category IV.