The Evolution of Solar Photovoltaic Systems
May 1, 2009, By Ron Slade, P.E., Solar Consultant
Although NEC rules for photovoltaic (PV) systems haven’t changed much over the years, confusion still surround some portions of Art. 690...
Putting PPE Performance to the Test
May 1, 2009, By Dan Doan, DuPont, and Tom Neal, Neal Associates
At the 2009 IEEE Electrical Safety Workshop held in St. Louis in February, we presented the results from our new study, Field Analysis of Arc Flash Incidents...
Building a Successful Customer Management Program
May 1, 2009, By Brad Dawson, LTV Dynamics
Electrical contractors must establish a proactive customer management program to help them identify and secure untapped profit potential...
Stop and Think
May 1, 2009, By Michael Eby, Editor-in-Chief
Why electrical engineers, contractors, and designers should stay on top of the latest research in electrical devices and equipment...
Contractor Products
May 1, 2009,
Prefabricated boxes These prefabricated steel outlet boxes are available in 4s (4-in. square) and 5s (411/16-in. square) models. Constructed from galvanized...
Solar PV Installation Helps Company Achieve LEED Platinum Certification
May 1, 2009, By Stefanie Kure, Senior Associate Editor
Venture Electric performs solar photovoltaic installation on first LEED Platinum-certified facility in Wisconsin...
The Basics of Variable-Frequency Drives
May 1, 2009, By Peter Novak, Fluor, Inc.
How to use various types of VFDs and harmonic mitigation tactics to combat the heat loss that accompanies these devices...
The Basics of Instrument Transformers Part 1
May 1, 2009,
Understanding the potential transformer (PT), a conventional, single-phase transformer that has its primary and secondary windings on a common core...
Strategic Maneuvers
May 1, 2009, By Beck Ireland, Staff Writer
EC&M magazine ranks the year’s biggest electrical design firms...
Managing Schedule Acceleration More Effectively
Apr 1, 2009, By Bob Mitchell, Integrated Management Group
A pre-bid risk assessment guide for electrical contractors working on fast-track projects ...
Using Single-Phase Transformers to Create 3-Phase Systems
Apr 1, 2009,
The basics of using delta-connected systems and wye-wye connected systems...
What's Wrong Here?
Apr 1, 2009,
Here’s your chance to moonlight as an electrical inspector and second-guess someone else’s work from the safety of your living room or office. Can you identify the Code violation(s) in this photo?...
Installing and Troubleshooting Arc Discharge Lamps
Apr 1, 2009, By Joe Knisley, Senior Editorial Consultant
Understanding how fluorescent and high-intensity discharge (HID) lamps work makes problem solving and corrective maintenance easier...
Product News
Apr 1, 2009,
Utility light Suitable for wet locations, the ProSeries utility light is UV-, high impact- and corrosion-resistant. In addition, the product features...
Maximizing VFD and UPS Performance
Apr 1, 2009, By Randy Barnett, American Trainco, Inc.
If you're installing a variable-frequency drive (VFD) or uninterruptible power supply (UPS) or if you already have this equipment in place you should...
Cashing In
Apr 1, 2009, By Michael Eby, Editor-in-Chief
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...
Whole-Home Control Concept Not Yet a Reality
Apr 1, 2009,
Connected Home Research Council study indicates electrical contractors should offer easy-to-understand products with discrete functionality that can be linked to a centralized network...
Selling Up Without Selling Out
Apr 1, 2009, By Beck Ireland, Staff Writer
Tops tips for selling lighting upgrades to building owners and facilities managers...
New Yankee Stadium Is a Home Run
Apr 1, 2009, By Stefanie Kure, Senior Associate Editor
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...
Focus on Lamps & Ballasts
Apr 1, 2009,
New product spotlight on lamps and ballasts for electrical contractors, electrical engineers, and plant facility personnel...
Home Energy Management System Gives Television a Starring Role
Apr 1, 2009, By Stefanie Kure, Senior Associate Editor
Control4’s Home Energy Manager platform helps homeowners save energy by using a programmable thermostat control, load disconnect measurement and control, and lighting control, which can be accessed via remote control through a television...
The Case of the Imperfect Bird on a Wire
Apr 1, 2009, By Michael S. Morse, Ph.D., University of San Diego
After a general laborer escapes serious injury following contact with electrical current, forensic investigators liken his experience to a bird on a wire scenario...
February Foreclosure Rate Reaches Record High
Apr 1, 2009,
Completed foreclosures in February reached the highest monthly total since the mortgage crisis began, according to the latest U.S. Foreclosure Index released by ForeclosureS.com...
Primary Care Electrician
Apr 1, 2009, By David Herres, Master Electrician
Understanding the specific challenges involved in of working on electrical systems in health care facilities...
Product News
Apr 1, 2009,
Track fixtures The Vanguard Series of low-wattage ceramic metal-halide and low-voltage track fixtures incorporates the company's Slimline ballasts. Featuring...
