| | | | | | In this episode, Russ finds a few problems with a grounding electrode conductor installation. First, the installation does not comply with Sec. 250.64(B) because the grounding electrode conductor is not securely fastened to anything. In addition, the EMT is not properly bonded in accordance with Sec. 250.64(E)(1). |
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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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| | | | Test your knowledge of the NEC with this challenging question. What is the minimum size conductor that may be run in parallel? |
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| | Sponsored | | Learn how recent advances in high-resistance grounding systems enhance operational and product reliability through full-time monitoring. |
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| | | | In the latest EC&M Code Conversations, Editor-in-Chief Ellen Parson and Code Consultant Russ LeBlanc talk about working space requirements and what happens when installers don’t follow the Code for working space clearances. |
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| | | A peculiarity of fibers is the thermal aspect. They can insulate equipment, resulting in fire or damage such as carbonization. Thus the general requirement is that equipment in Class III locations be able to function at full rating without developing excess surface temperatures [503.5]. The thermal aspect also comes into play when selecting motors.... |
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| | | Take this quiz about ESS requirements and enter for a chance to win a $25 gift card to Amazon! |
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| | | In this EC&M Tech Talk, Randy Barnett covers five topics regarding energy storage systems (ESSs). Article 706 Energy Storage Systems first appeared in the Code in 2017, though energy storage was around long before making it into the NEC. The video follows a logical format for understanding these systems and the basic requirements. |
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| | | Fill in the blank. At least one receptacle outlet not more than _____ above a balcony, deck, or porch shall be installed at each balcony, deck, or porch that is attached to and accessible from a dwelling unit. |
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| | | Editor-in-Chief Ellen Parson and NEC Expert Russ LeBlanc discuss some of the most significant changes to the 2023 edition of the National Electrical Code. This episode dives into the new Code section, Sec. 700.11, which addresses technologies like PoE and other emergency lighting systems that use Class 2 power. |
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| | | From the EC&M e-books library: Trainer Harold De Loach's best advice, tips, and tricks for anyone new to the trade |
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| | | Test your knowledge of the NEC with this challenging question from Mike Holt. Fill in the blank. Except as provided in Sec. 250.122(F)(2)(c) for raceway or cable tray installations, the equipment grounding conductor in each multiconductor cable shall be sized in accordance with Sec. 250.122 based on the _____. |
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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: A retro receptacle installation. |
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