Nov
16 | Electrical ZoneYour view to a new dimension in the electrical industry | |  | | |
|  Unfortunately, many building owners are not aware of these maintenance requirements and continue to operate electrical equipment in a “set-it-and-forget-it” scenario. This photo gallery is a sampling of electrical equipment that was operated this way, resulting in major equipment losses and long business interruptions. |
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Advertisement |  AEMC®’s Power Quality Analyzer PowerPad® AEMC’s model 8336 is a three-phase power quality analyzer that is easy-to-use, compact and shock resistant. Technicians and engineers can measure and carry out diagnostics and power quality work on one-, two-, or three-phase networks. Safety rated 600V CAT IV. Click here to learn more | | |
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|  This article examines an incident in which 237 contact voltages were reported in a relatively very small area over a period of nine testing cycles. It was the proper application of IEEE 1695-2016, “Guide to Understanding, Diagnosing and Mitigating Stray and Contact Voltage,” that identified the “qualified” reference ground being used to take the voltage readings was itself energized, contributing to the large number of reported contact voltages. |
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Advertisement |  RACO's Adjustable Open Center Bracket Get installation flexibility and save SKU’s! RACO’s Adjustable Open Center Bracket is the heaviest duty option on the market making. Accommodates 4" or 4-11/16" square boxes and plaster rings and can be adjusted for use on stud spacing from 16-24". hubbell.com | | |
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|  As the solar market continues to boom, so does the challenge of what to do with millions of obsolete and damaged modules, inverters, batteries, and other components. They have to go somewhere — and that somewhere is where challenges creep in for electrical contractors serving the residential, commercial, and utility solar markets. |
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Advertisement |  NEW SUPER PREMIUM VINYL TAPE by PLYMOUTH! Flexibility & Adhesion brought together in the newest Plymouth Premium SLIPKNOT. Our new Platinum and Gold Premium Insulation Tapes offer superior flexibility and adhesion. You now have options to choose between two different tapes to optimize for different application needs. Click here to learn more | | |
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|  Fill in the blank. A “performance area” includes the stage and audience seating area associated with a _____ stage structure, whether indoors or outdoors. |
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Advertisement |  Lead A Charge For Business With TurboEVC TurboEVC is compatible with existing EVs and provides long-term charging performance. Available with software management and flexible mounting, businesses can offer EV charging to visitors and employees while also supporting a commercial fleet. Click here to learn more | | |
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|  New built-in time clock feature for scheduling removes need for additional devices |
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|  Single-phase motors, adjustable-speed drives, and power factor correction applications often depend on capacitors to operate properly. This article explains how to test these critical components for electric motors in general as well as for specific use applications like motor starting and power factor correction. |
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|  Is your client’s repair issue really about power quality or something else altogether? Devising a systematic approach to identify power quality issues and reduce unexpected outages is more important than ever before considering the COVID-19 pandemic. |
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|  The construction industry added 84,000 net new jobs in October, according to an Associated Builders and Contractors (ABC)analysis of data recently released by the U.S. Bureau of Labor Statistics. During the last six months, the industry has added 789,000 jobs, recovering 73% of the jobs lost during earlier stages of the pandemic. |
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|  The American Institute of Architects' (AIA) Committee on Architecture for Education (CAE) recently recognized 11 projects for state-of-the-art designs of schools and learning centers. The Education Facility Design Award jury selected six facilities for its Awards of Excellence and five projects for its Awards of Merit. |
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|  According to a recent study from market research firm Global Market Insights, the uninterruptible power supply (UPS) market is projected to experience exponential growth (set to surpass $14 billion by 1016) due to rising demand for power back-up solutions across numerous industries and the need to counter power outages or disruptions in the main power supply. |
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|  Article 725 provides the requirements for Class 1 circuits in Part II. A Class 1 circuit is that portion of the wiring between the overcurrent protective device (OCPD) of a Class 1 power supply and the load [Art. 100 definition]. |
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|  NEC Consultant Russ LeBlanc stumbled across these questionable installations. Think you know how they violate the NEC? Hint: Separation anxiety. |
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|  NEC Consultant Russ LeBlanc discovered this potentially dangerous situation. Think you know how this installation violates the NEC? Hint: firewall failure. |
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|  Take this quiz to see how much you know about some of America's past presidents and maybe find out a few interesting facts that you weren't aware of. |
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| This group of electrical symbols can be found on electrical schematic diagrams. Can you match the symbol to the correct text description? Most of these are somewhat common, but a couple of them will probably make you scratch your head a bit to come up with the correct answer. Good luck! |
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