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.
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