| | | | | | How well do you know the Code? Think you can spot violations the original installer either ignored or couldn’t identify? Hint: A cornucopia of connectors and couplings. |
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| | Sponsored | | Champion Duct® elbows offer light weight, low coefficient of friction and no burn-through. Champion Fiberglass® helps contractors and engineers reach successful project outcomes with speedy installation and low material and installation costs. |
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| | | | Test your knowledge of the NEC with this challenging question from Mike Holt. Main bonding jumpers and system bonding jumpers shall not be smaller than specified in _____. |
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| | | | In this episode of EC&M Code Conversations, Editor-in-Chief Ellen Parson and Code Consultant Russ LeBlanc dive into confusion surrounding equipment grounding conductors and discuss how this often leads to Code violations in the real world. |
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| | | | Fill in the blank. Hallways in dwelling units that are _____ or longer require a receptacle outlet. |
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| | | | It's that time of year again — time to preview EC&M's highly anticipated Top 40 electrical design firms list for 2024, ranked specifically by electrical design revenue earned in 2023. This photo gallery offers a sneak peek at the companies making it into the top 10 spots, listed in descending order. |
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| | | The NEC uses terms like equipment grounding conductor (EGC) but does not mean to actually provide grounding via that conductor. How can this be? Let’s first look at what the NEC considers to be suitable for use as an EGC [250.118]. It lists fourteen such items. |
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| | | During a power quality inspection to evaluate the integrity of a critical communication UPS system, a discovery was made in one of the 125A panelboards. After evaluating the UPS installation, we proceeded to inspect all the downstream panelboards. |
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| | | Randy Barnett covers what is arguably one of the most important Code topics when it comes to safety – bonding. This EC&M Tech Talk examines NEC Article 250 Grounding and Bonding, Part V Bonding. |
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| | | Take this quiz about NEC requirements for swimming pools and enter for a chance to win a $25 gift card to Amazon! |
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| | | Russ examines some NM cable lying through some brush outside. Section 334.12(B)(4) prohibits NM cables from being installed in wet or damp locations, which the installation clearly violates. In addition, Sec. 590.4(J) does not permit temporary cables to be lying on the floor or ground. |
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| | | True or false? Feeder conductors are permitted to be installed in the same raceway as service conductors. |
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