| | | | | | Russ looks at an installation where the cord jacket is severely dried and split open. Section 400.3 requires flexible cords and cables to be suitable for the conditions of use and location. This cord is unsuitable. |
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| | Sponsored | | Lightweight, no burn-through Champion Fiberglass® Elbows protect data center cables while minimizing elbow repairs. They offer temperature tolerance and a fast, seamless installation. |
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| | | | What is the maximum size copper grounding electrode required for connection to a concrete-encased electrode? |
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| | Sponsored | | Stop electronic control downtime due to heat, dirt & moisture. Cabinet Cooler Systems produce 20 degree Fahrenheit air from ordinary compressed air to cool electrical controls. Cabinet Coolers are UL Listed, CE compliant and maintain the NEMA rating. |
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| | | | Rules for low-voltage wiring have been relocated within the 2026 NEC and those installing these limited-energy and communication wiring and equipment must know where to find those requirements. Fortunately, the information has now been logically grouped together within the code. |
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| | | With the end of the year right around the corner, we highlight 10 of EC&M's most influential articles of the past year, covering a variety of topics from some of our favorite subject matter experts, including Randy Barnett, Corey Hannahs, Mike Holt, and Tom Zind. |
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| | Sponsored | Whether you’re in electrical design, contracting, maintenance, or inspection—Code Change Conference 2026 delivers what you need: NEC updates, actionable guidance, and tools to future-proof your work. Join us January 2026 in Boston! |
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| | | Fill in the blank. In dwelling unit kitchens, GFCI protection shall be provided for 125V through 250V receptacles _____. |
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| | Sponsored | With a focus on electrical products and services, the Facilities Expo ties together all aspects of facilities engineering, MRO, and green buildings. Register for free to explore our solution packed exhibitor floor, learn from industry experts, and network! |
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| | | In Episode 92 (and the final one of 2025), the entire editorial staff of EC&M are highlighting the most popular/memorable content pieces and topic areas from this past year, including 2026 NEC changes, AI, safety trends, the NECA convention, the Everyday Electrician, and more. |
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| How well do you know the Code? Think you can spot violations the original installer either ignored or couldn’t identify? Hint: Poor choice of wiring methods. |
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| | | See which of Russ LeBlanc's Moving Violations videos were the most-viewed of 2025 — your favorite one might be there. |
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| Fill in the blank. Article 408 covers _____. |
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