Understanding the potential transformer (PT), a conventional, single-phase transformer that has its primary and secondary windings on a common core...More
Recent study from the Consumer Electronics Association reveals an increasing consumer interest in the energy efficiency benefits of consumer electronics products...More
According to the 2009 Economic Outlook Survey from Troy, N.Y.-based GlobalSpec, engineering, technical, and industrial professionals have felt the impact of the economic slowdown on their businesses...More
How electrical engineers, contractors, and designers can cash in on rebate and tax deduction programs offered by the state/federal government and local electric utilities...More
E-J Electric Installation uses Building Information Modeling (BIM) during pre-construction phase to complete complex lighting and power solutions on world-class ballpark renovation...More
When installing a variable-frequency drive (VFD) or uninterruptible power supply (UPS), monitor certain power quality parameters to maximize their performance...More
Given the weakened state of the U.S. economy, it’s no surprise that the construction industry continues the struggle to keep its head above water....More
Last month, we discussed low power factor and how resonance can disrupt facility operations. This month, we'll talk about harmonic filter design and various...More
Looking at Fig. 230.1 in the NEC, we can see that the second and third major areas of Art. 230 provide requirements for service entrance conductors (Part...More
It's no secret that many subcontractors have sustained their fair share of hard knocks in the last year as a result of the economic crisis and construction...More
The philosophy behind Building Information Modeling (BIM) is more than the sum of its technological capabilities. Proponents of BIM claim that beyond...More
In today's fast-paced competitive construction market, it's no longer enough to execute a project in the real world of girders, sheet metal, pipe, and...More
If you look at Fig. 230.1 in the NEC, you'll see that Art. 230 divides neatly into three general of coverage. The first includes general requirements,...More
School is cool is a phrase you probably don't hear many teenagers espousing these days. However, students who attend classes at the Academy of Information...More
According to the IEEE Standard Dictionary of Electrical and Electronic Terms, power factor (PF) is defined as the ratio of the circuit power (watts) to...More
Until recently, a major barrier to the widespread adoption of grid-connected cogeneration and small power production, otherwise known as distributed generation...More
Abstract: In this webinar, Mike will not only explain the current NEC requirements for GFCIs and AFCIs, but he'll explain how they operate, what causes their premature failure, and when they won't provide the safety protection you might have thought they would.
Abstract: This webinar will teach attendees the difference between risk and hazard, and how the choice of system grounding has a direct impact on reliability and safety.
Our new TVB810 TV Box™ delivers the ultimate in versatility for installing wall-mounted TVs in retrofit projects. There's more room in the box for wires; plus, you can install it horizontally or vertically to ensure proper positioning of low voltage connections behind the TV....More
