After decades of debate, 10-amp general branch circuit conductors are established in the 2026 NEC—this article explores the technical, historical, and regulatory forces that made this major shift possible.
With EV chargers, heat pumps, and smart systems rapidly boosting electrical demand, this article highlights the critical role of precise load calculations in keeping electrified buildings safe and efficient.
A concise, field-ready guide to where lighting outlets are required, how to size loads, choose and locate luminaires in damp/wet, closet, and bath zones, apply 2023 control updates (battery-only limits; laundry areas), and prep for 2026 switch-citation changes.
A practical roadmap to non-dwelling lighting—covering load calculations (track/show windows), emergency/egress controls, hazardous, health-care and assembly rules, signs/elevators/IT rooms, and the key 2023 terminology/control updates with 2026 reorganization to watch.
This article on emergency lighting and controls was very much a collaborative effort. Many experts in the field—including Rick Miller, Craig DiLouie, and several manufacturers—provided extremely valuable input in reviewing and fact-checking the content.
Article 240 centers on protecting conductors—not equipment—outlining normal, open, and overloaded circuits with practical examples and NEC 210.18 context.
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.