|  | | | | | Think you know how this installation violates the NEC? How well do you know the Code? Think you can spot violations the original installer either ignored or couldn’t identify? Hint: A crusty, rusty raceway |
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| | | Test your knowledge of the NEC with this challenging Q&A from Code Consultant Mike Holt. What are the rules for the mechanical continuity of raceways and cable sheaths? |
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| | | Fill in the blank. Luminaires and lighting equipment shall be connected to a(an) _____. |
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| | | In Episode 3 of “EC&M Asks,” a new video series featuring subject matter experts (SMEs) answering reader-submitted questions regarding popular electrical topics, Electrical Trainer Harold De Loach shares tips for understanding the Chapter layout of the NEC. |
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| | | FREE PREMIUM CONTENT: In episode 14, Editor-in-Chief Ellen Parson and Code Consultant Russ LeBlanc discuss misconceptions surrounding the application of Sec. 590.4(D)(1). Is a multiwire branch circuit a single circuit or is it multiple circuits? |
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| | | We're in need of 12 expert electrical professionals to review and rate entries for our annual Product of the Year Competition, helping to identify the winners in each of many categories. Read more details here. |
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| | | When it comes to memorable Code revision cycles, this edition will be remembered for making the NEC an easier document to use. Here’s a look at the top 25 revisions. |
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| | | Answering your NEC questions. Test your NEC knowledge with these questions from NEC Consultant Mike Holt regarding various Code requirements for elevators and escalators. |
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| | | See the latest code violations from NEC Consultant Russ LeBlanc. In the first example, a reader noticed a serious issue with how a ‘handyman’ ran feeder wires in his sister's home in southern Missouri. In the second example, Russ looks at the work of an installer who used type MC cable in an outdoor wet location |
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| | | This gallery features six new product innovations in motors, drives, motor controls, and power distribution equipment. |
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| | | Art. 440, Part I provides the NEC general requirements for air-conditioning and refrigerating equipment. This article has an unusual aspect to it, compared to other NEC articles — it’s essentially a supplement to Art. 430 (motors). It covers a special type of motor, namely ones that are hermetically sealed. They are hermetically sealed because they... |
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| | | As an inspector, I frequently run across improperly placed junction boxes (JBs) in firewalls (e.g., fire-rated assemblies). This article will highlight the improper installation of JBs and shed light on the fire blocking problems I find in the field. Although the proper placement of JBs and fire blocking can be a problem in residential construction... |
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| | | In this episode, Russ shows us a light pole sitting in a grassy area. The installer used liquidtight flexible metal conduit (LFMC) and rigid PVC to protect the conductors. As we can see, this wasn’t a good choice as the conductors are now exposed. This certainly presents a shock hazard. Section 350.12 prevents us from using LFMC where it’s subject ... |
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| | | Test your knowledge of the NEC with this challenging quiz question from NEC Consultant John Lupacchino. What is the maximum distance required between supports for conductors in a vertical raceway if the conductors are 250kcmil copper? |
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| | | With the holiday fast approaching, here's a little trivia to see how well you know your Thanksgiving facts. |
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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? Here's your chance to moonlight as an electrical inspector and second-guess someone else's work from the safety of your living room or office. Can you identify the specific Code violation(s) in this photo? Hint: Mix and match GEC... |
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| | | Take this quiz about holiday lighting and enter for a chance to win a $25 gift card to Amazon, iTunes, or Cabela’s! |
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| | Advertisement | Your knowledge and understanding of the 2023 NEC Code changes are critical to your success. Register for the Seattle or Boston 2-day training today. |
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