Field Study Sheds Light on Photocontrol System Performance
Jun 1, 2007,
Daylight harvesting is a lighting control strategy that automatically adjusts electric lighting system usage based on available daylight, which can be...
Watch and Learn
Jun 1, 2007, By John Michael Shaver, Stanley Consultants
Although expensive at their inception, technological advances made in the video surveillance arena in the last five to 10 years are now priced competitively,...
Standard Motor Control Circuit Primer
Jun 1, 2007, By Steve Vidal, P.E., Joseph J. Vidal & Sons, Inc.
Single-phase and 3-phase AC squirrel cage induction motors need some type of control circuit to initiate a start or stop function. The two types of ladder...
Mitigating Harmonics in Industrial Environments
Jun 1, 2007, By John Houdek, Allied Industrial Marketing
No harmonic mitigation solution is ideal for every application. So, once you or your client decides to reduce harmonic distortion on a facility electrical...
Implementing an Arc Flash Compliance Program
Jun 1, 2007, By Gerald Wilhite, Weyerhaeuser and David Durocher, Eaton Corp.
Electric shock hazards, including electrocution, have been studied since the introduction of electricity. More recently, however, the dangers of arc flash...
IBEW TV
Jun 1, 2007,
With more than one million hits, The International Brotherhood of Electrical Worker's (IBEW) Hour Power is proving popular with members and non-members...
Inmates Turned Electricians
May 1, 2007, By Amy Florence Fischbach, Contributing Writer
A manslaughter conviction put 24-year-old Patricia Nedella behind bars six years ago. When she walks out of the Arizona State Prison Complex (ASPC) this...
Lumen Crunching for Dummies
May 1, 2007, By James R. Benya, P.E., FIES, FIALD, LC, Benya Lighting Design
The latest energy codes allow about 20% less wattage for lighting than they did just three years ago, and in order to get rebates or LEED ratings, lighting...
Wayward Sun
May 1, 2007, By Beck Ireland Staff Writer
Florida, California, and Arizona lead the way in consumption of photovoltaic (PV) and solar thermal energy in the United States, according to StateMaster.com....
Online Resource Simplifies Construction Software Selection
May 1, 2007,
For contractors, architects, and building owners in search of specific construction software, finding the right program can be much like Internet dating....
Keeping Up with Advancements in Lighting Control
May 1, 2007, By Eric Lind, Lutron Electronics
Project managers for electrical contracting firms often think in terms of hours not dollars when considering the scope of a job. Anything that can help...
Ontario Declares Lights Out for Incandescent Bulbs
May 1, 2007,
Following Australia's initiative to phase out the sale of incandescent light bulbs by 2010, Ontario, Canada's Ministry of Energy recently announced plans...
Mood Lighting
May 1, 2007, By Beck Ireland, Staff Writer
A decade after Congress passed the Energy Policy Act of 1992, the U.S. Dept. of Energy (DOE), acting on its authority granted by the bill, designated...
Largest Solar Photovoltaic System in North America Breaks Ground
May 1, 2007,
Construction is underway on a multi-megawatt solar photovoltaic system at Nellis Air Force Base outside of Las Vegas. The largest solar photovoltaic system...
Arizona and Colorado Lead Rocky Mountain Region on Industrial Plant Front
May 1, 2007,
Sugar Land, Texas-based Industrial Info Resources (IIR) reports that the Rocky Mountain Region, made up of Arizona, Colorado, Utah, Idaho, Montana, Nevada,...
Monitoring the Latest Developments in Access Control
May 1, 2007, By John Michael Shaver, Stanley Consultants
Once associated only with banks, jewelry stores, or museums, access control systems are now playing a much greater role in the overall design of all types...
Solar- and Wind-Powered Water Purification System is a Lifesaver
May 1, 2007, By Stefanie Kure, Senior Associate Editor
I magine your city has been devastated by a hurricane, flood, earthquake, or tornado. Phone and power lines are down, water mains are broken, and hundreds...
Retail Construction Outlook Remains Optimistic
May 1, 2007, By Stefanie Kure, Senior Associate Editor
Despite dire predictions that retail construction would stumble in the wake of the lackluster U.S. residential housing market, McGraw Hill Construction,...
Illustrated Catastrophes
May 1, 2007, By Joe Tedesco, NEC Columnist
As usual, never consider the following commentary associated with these photos as a formal interpretation of the National Electrical Code (NEC). Without...
The Case of the Misguided Move
May 1, 2007, By Michael S. Morse, Ph.D., University of San Diego
Ask almost anyone, and you'll get the same answer. The distribution power lines with which we share our world carry a lethal dose of energy. Ironically,...
Product News
May 1, 2007,
Fastening tools The 10.8V Impactor fastening driver and 21618 impact wrench are suitable for a range of professional fastening applications. Measuring...
Branch Circuits - Part Two
May 1, 2007, By Mike Holt, NEC Consultant
Article 210 provides GFCI requirements in 210.8 and AFCI requirements in 210.12. These requirements apply to 125V receptacles rated at 15A or 20A (circuits...
The Evolution of the LED
May 1, 2007, By Joe Knisley, Senior Editorial Consultant
The lighting industry has been buzzing with news of solid-state light source advancements for several years. As one light-emitting diode (LED) lighting...
Lighting Systems and Electromagnetic Compatibility
May 1, 2007, By Tom Shaughnessy, PowerCET Corp.
Considering the type and quantity of loads placed into most facilities, one fact becomes clear: The lighting system is one of the most pervasive of the...
What's Wrong Here?
May 1, 2007, By Joe Tedesco, NEC Columnist
How well do you know the Code? Think you can spot violations the original installer either ignored or couldn't identify? Here's your chance to moonlight...
