|  Year after year, it's no surprise that the National Electrical Code (NEC) continues to be EC&M readers' most sought-after subject area of interest. Throughout 2021, Russ LeBlanc, NEC Consultant, took readers with him into the field through his "Moving Violations" video series, finding Code violations in some of the most unsuspecting places. People who watch these videos undoubtedly are left wondering what the heck the installer was (or wasn't) thinking. This year was no exception. |
|
Advertisement |  With Tight Voltage Regulation & Power Ride-Through! Bad power in the form of disruptive electrical noise, damaging power anomalies, and poor utility power will cost you money! Our constant voltage transformers deliver isolated, regulated, transient-free power to your industrial applications in harsh electrical environments. Click here to learn more. | | |
|
|  It's nearly that time of year to celebrate some holiday cheer. To help you celebrate, Group Editorial Director Mike Eby has compiled his list of 12 products that you'll want to consider gifting that electrician in your life. Click through the slides to see what Mike feels would make a great gift to unwrap this year. |
|
Advertisement |  Introducing EnergyX Portable EnergyX Portable is a portable meter connected to a cloud platform and expert services, providing insights into power quality issues. With secure cell connectivity and QR Code activation, you get live data instantly, anywhere in the world. Click here to learn more | | |
|
Members Only |  Sponsored by Crescent Tools, this video shows viewers the PPE, tools, and rules that protect workers from electric shock. |
|
Advertisement |  Improve Building Design with Division 25 In this eBook, explore key trends driving smart building specs. You’ll also learn why engineers should specify smart buildings with Division 25, including how it increases engineering capabilities, reduces building costs, and generates more value. Click here to learn more | | |
|
Members Only |  In this episode, Russ LeBlanc, longtime NEC consultant to EC&M, and Ellen Parson, editor-in-chief, discuss some of the discrepancies that come up when performing microwave installations and why the Code may cause confusion at times in these instances. |
|
|  While soldered or welded connections exist in some applications, most connection types depend on mechanical force for their integrity. This, in turn, requires sufficient force and good surface conditions at the interface. All metals exposed to air oxidize, but excessive oxidation can result in failure, as can dirt or other foreign substances. |
|
Members Only |  PREMIUM CONTENT: A recent test of an autonomous work vehicle (AWV) prototype at a utility scale solar project under construction has brought the emerging field of construction robotics a step closer to being relevant to companies engaged in electrical contracting work. Black & Veatch, an Overland Park, Kan.-based engineering and construction firm, tested a fully electric AWV prototype built by Honda at a client’s 1,000-acre solar site being built in New Mexico (watch video demonstration). |
|
|  The surge in cyber incidents underscores the need to mitigate threats. A robust cybersecurity program requires coordination between operational technology and information technology departments. The Eaton/Tenable collaboration encompasses the hardware, software and engineering services needed to assess risk, monitor networks and manage security for power management. |
|
|  To address concerns expressed by fire services that have to respond to buildings in emergency situations (both fire related and non-fire related), NFPA 1 and the International Fire Code (IFC) contain requirements relative to the installation of ESSs, especially in residential occupancies. In response to this, NFPA established a technical committee to develop a new standard for the installation of these systems. |
|
|  The acquisitions will complement Trystar’s current offerings to customers. Controlled Power Co. will add power conditioning and conversion equipment to Trystar’s emergency and temporary power solutions. Total Plant Management Group will contribute prefabricated buildings, control panels, metering skids, and modular electrical substations to Trystar’s portfolio of power cable, power distribution, and test products. |
|
|  What can be learned from a review of the circumstances that existed prior to and at the time of the accident? First, the power distribution system's available short-circuit current exceeded the rating of the panelboard. Apparently, expansion of the electrical system and an increase in system short-circuit availability from the utility had occurred in recent years and no one had noticed. Consideration had not been given to existing equipment ratings and upgrading of components had been neglected. |
|
|  This group of symbols can be found on many motor control drawings. Can you match the symbol on each slide to the correct text description? Most of these are common control items, but we've thrown in a couple that might just challenge you a bit. Have fun and good luck! |
|
|  Fill in the blank. Direct-buried conductors, cables, or raceways, which are subject to movement by settlement or frost, shall be arranged to prevent damage to the _____ or to equipment connected to the raceways. |
|
|  Employers have a responsibility to provide their employees with the proper arc flash personal protective equipment (PPE), so workers can protect themselves from electrical-related injuries on the job. There are several factors to consider when choosing the proper safety gear. The wrong brand or material can make all the difference. |
|
|  For communications systems installations, some Chapter 8 requirements add to the grounding and bonding requirements of Art. 250. These three Chapter 8 Articles have significant implications for the grounding and bonding of communications systems: Articles 800, 810, and 820. |
|
Members Only |  Take our monthly quiz to find out how much you know about the holidays, and enter for a chance to win a $25 gift card to Amazon, Cabela's, or iTunes! |
|
|
|
