|  | | | | | Electrical inspectors identify which mistakes electrical professionals tend to make the most when it comes to the National Electrical Code. This article will review 10 of the top-cited violations from around the country based on feedback from electrical inspectors. In many instances, these violations are consistent in many regions. |
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| | Advertisement | Every industrial building has equipment that is vulnerable to power quality issues. It's time for a paradigm shift. In this eBook, learn how a comprehensive EPMS can help protect against equipment damage, failures & downtime and more. |
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| | | Most electricians understand that bonding and grounding is a priority when it comes to the safety of building wiring systems.They’re taught early on in their career to fulfill the requirements of the NEC when installing electrical equipment. However, many times the “why” behind the rules was never explained to these individuals. |
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| | | A facility manager reported its uninterruptible power supply (UPS) was constantly alarming on high voltage during random periods throughout the week. The voltage would occasionally reach or exceed on average 108% of nominal. |
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| | | It’s no secret that EC&M readers can't get enough of NEC Consultant Russ LeBlanc's Moving Violations videos. So, we decided to compile some of the “best of the worst” installations he has run across featuring incredibly wacky — and downright dangerous — lighting jobs gone wrong. |
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| | | Fill in the blank. At circuses and carnivals, all equipment to be grounded shall be connected to a(n) _____ conductor of a type recognized by 250.118. |
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| | | As solar generation is installed in distributed locations, traditional planning and distribution power system management assumptions are being challenged. Additionally, increased load in traditionally off-peak times from electric vehicle (EV) charging is adding complexity. Bidirectional power flows on aging infrastructure are causing thermal overlo... |
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| | Advertisement | With a spotlight on electrical products and systems, the Facilities Expo has solutions for any building challenges you might face. Here you will learn from industry experts, network, and explore our solution packed exhibitor floor—all for free! |
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| | | In this episode of “EC&M Tech Talks,” Randy Barnett, a journeyman electrician, inspector, author, trainer, and electrical safety expert, reviews the installation requirements for generators in Art. 445 of the National Electrical Code. However, there is much more in the NEC to installing a generator than what is in Art. 445. The application of the g... |
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| | | Electrical power is so intrinsic to our daily lives it is easy to take it for granted. But as digitalization accelerates across all sectors and applications, so too does electrification. You can’t have digital transformation without electrification. When an application is critical, like a hospital, airport, or industrial control system, the support... |
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| | | Power quality surveys should be considered as routine maintenance. By making semi-regular measurements, you can discover any changes that may be occurring so you can find potential problems and fix them early. The period between surveys is up to the users’ judgement, but they need to consider their expectations of system reliability — the higher th... |
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| | | Article 430 is definitely one of the National Electrical Code’s largest, most confusing, and intimidating articles because it contains complex terms and technical requirements utilized by seasoned electricians. Typically, the electricians who work within the guidelines of Art. 430 have an intermediate to mastery level of using the NEC. |
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| | | What is causing slowdowns on a gluing system? Over the past couple of weeks, several slowdowns and shutdowns have occurred, and the mechanics have assured the plant engineer it’s not due to excess glue. They also checked the gear oil levels in the various gearboxes and ruled those out. Now you have been assigned to look at this from an electrical s... |
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| | | Article 440, Part 4 provides the requirements for the circuit conductors used in HVAC and refrigeration equipment. For other kinds of installations, you must specify the ampacities of motor conductors per Part III of Article 310. You do that with hermetic motors also, except as modified by 440.6(A), Exception No.1 [440.31]. |
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| | | Is that installation for real? Unfortunately, yes. We present the “best of the worst” What's Wrong Here photos from 2022. Read each hint, and then click the next slide to read the analysis from NEC Consultant Russ LeBlanc on each Code violation. |
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| | | Take this quiz about the 2023 NEC and enter for a chance to win a $25 gift card to Amazon, iTunes, or Cabela’s! |
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