|  | | | | | With the holiday fast approaching, here's a little trivia to see how well you know your Thanksgiving facts. |
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| | Advertisement | It’s never been easier to upgrade your facility with motor disconnects that prioritize sanitation, promote safety and minimize installation time with footprint compatibility. With an industry-standard mounting pattern, MENNEKES 30A CDS, SPEC Grade and SDS switches are true drop-in replacements. |
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| | | The capital request is an internal financial control that companies use to determine how best to allocate funds. Those funds are typically borrowed, which means the cost of capital is considered. That cost is baked into numbers such as the internal rate of return and the modified internal rate of return. Numbers such as payback period or return on ... |
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| | Advertisement | Your EASA service center can help answer that question. ANSI/EASA AR100-2020 is the standard for maintaining or improving AC electric motor efficiency/reliability. Find EASA members at easa.com; accredited service centers at easa.com/accreditation. |
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| | | Mike, the electrical supervisor over Building No. 3, told you about a problem your predecessor failed to address. A couple of motors had an excessive failure rate. Over the past five years, one of them was replaced three times and the other four times. It doesn't seem to be a voltage imbalance or some other power quality issue. He doesn’t have any ... |
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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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| | | Working at elevation is inherently dangerous; recognizing that fact is a good first step in making yourself safer. It’s also good to look at some of the unsafe acts that have sent people to their deaths. When it comes to preventing fatal falls, it’s always best to learn from the mistakes of others. |
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| | | We have an acute shortage of skilled workers in most trades, and the electrical trade is among the hardest hit. The mechanics trade isn’t far behind. These two trades make the core of most maintenance departments. Unless your circumstances are very unusual, you can’t solve the people shortage by hiring the right people to fill the slots that need f... |
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| | | Article 430, Part XIII provides the NEC requirements for motor grounding. This is a problem because motors are loads, not power sources. Therefore, they are bonded, not grounded. There is, in fact, nothing in Part XIII about grounding. Does this seem confusing? What is meant here is bonding; more specifically, equipment bonding. |
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| | | In Episode 2 of “EC&M Asks,” our subject matter expert Tommy Northcott, P.E., a senior power engineer and branch manager for Jacobs Technology, Inc., answers reader-submitted questions regarding arc flash hazards, what type of PPE to wear, and information regarding arc flash calculations. |
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| | | Fill in the blank. Sign and outline lighting outlets are to be calculated at a minimum of _____ for each required branch circuit specified in 600.5(A). |
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| | Advertisement | Prevention through design (PtD) encompasses all efforts to anticipate and design out worker hazards. Learn more about PtD in this multi-resource guide, including how to apply the hierarchy of controls to many different types of electrical equipment. |
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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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| | 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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| | | NFPA 70E says that unqualified persons “shall be trained in, and familiar with, any electrical safety-related practices necessary for their safety” [110.6(A)(2)]. However, it has very detailed training requirements that apply to qualified persons. |
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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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