How to design an electrical system in which the upstream protective device (fuse or circuit breaker) nearest to the system fault clears the fault without affecting the protective devices that are upstream from it...More
In the 1960s, a group of surgeons and anesthesiologists in Arizona came up with a revolutionary concept that would forever change the face of medicine:...More
In Alameda, Calif., a single-screen movie theater was restored to its original purpose and Art Deco glory after incarnations as a roller skating rink...More
Galvanized rigid steel and aluminum are the traditional materials for electrical conduit, but since their introduction in the 1960s, plastic and competitive...More
Boasting a population of almost 3 million, St. Louis is America's 16th largest city. To help safeguard its citizens' health, the metro area recently opened...More
Chicago-based Midwest High Speed Rail Association (MHSRA) and local leaders recently proposed a $12 billion, 220-mph high-speed rail line that would cut the ride between Chicago and St. Louis to a little more than 2 hr...More
Medium-voltage (MV) generators are not designed to withstand full fault current during a single phase-to-ground fault, which is why they are connected...More
The new frontier in lighting continues to expand well beyond the ever-hyped solid-state lighting (SSL) market, as communications/control systems of all...More
Data from “2009 Green IT Report,” a recently released study from Cupertino, Calif.-based Symantec, reveals that senior-level IT executives report significant interest in green IT strategies and solutions, attributed to cost reduction and environmental responsibility...More
The HomePlug Powerline Alliance, Portland, Ore., recently announced a technology path for Smart Grid (intelligent energy networks), an infrastructure-critical market poised for rapid growth....More
DOE anticipates publication of final criteria for integral LED lamps in August 2009. Feedback was provided by stakeholders, contributing to DOE’s proposed interim solutions...More
For the LED lighting market to reach its potential, stringent quality standards must be in place that ensure these fascinating light sources provide the type of light their manufacturers claim they do....More
Nineteen projects from 11 countries comprise the winners of the 26th Annual International Association of Lighting Designers (IALD) International Lighting Design Awards...More
Recent study from the Consumer Electronics Association reveals an increasing consumer interest in the energy efficiency benefits of consumer electronics products...More
LEDs have unique and compelling characteristics that make them ideal for industrial lighting applications. But there are a variety of misconceptions about LEDs, how well they work, how long they last, and more. Digital Lumens developed this whitepaper to dish up the facts around LEDs and address some common misunderstandings....More
An arc flash is associated with the explosive release of energy caused by an electrical arc, due to either a phase-to-ground or a phase-to-phase fault. This kind of fault can result from many factors – a dropped tool, accidental contact with electrical systems, buildup of conductive dust, corrosion or improper work conditions.....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.
