ECM Buyers' Guide

design / engineering

To Serve and Protect 

Nov 1, 2007, By Mark Mitchell and Alan Schmidt, Square D/Schneider Electric

Most people are comforted in knowing their homes are protected from electrical hazards by the circuit breakers located behind the door of a home's load...

Adding Value on the Home Front 

Nov 1, 2007, By Carlos Villalobos, Watt Stopper/Legrand

Many of today's homeowners are enthusiastic about energy-saving products, especially those that boast a quick payback. Vacancy and occupancy sensors are...

Introduction To PLCs 

Nov 1, 2007, By Steve Vidal, P.E., Joseph J. Vidal & Sons, Inc.

The programmable logic controller (PLC) is a microprocessor-based system that accepts input data from switches and sensors, processes that data by making...

Arc Fault Detection: Your Questions Answered 

Nov 1, 2007, By Gerard Winstanley, National Electrical Manufacturers Association

The National Electrical Code (NEC) requirements for arc fault circuit interrupters (AFCIs) have become more stringent with each passing Code cycle, stirring...

Power Play 

Nov 1, 2007, By Rajan Battish, P.E., RTKL Associates, Inc.

Power is an essential component of any mission-critical facility, and data centers are no exception. Not only does the computer equipment need to be continuously...

Article 708: Critical Operations Power Systems 

Nov 1, 2007, By Michael A. Anthony, P.E., University of Michigan; Robert G. Arno, EYP Mission Critical Facilities

Focusing on the complex interplay among mechanical and electrical systems needed to support critical infrastructure, Art. 708 is one of four new Articles...

Embracing Change 

Nov 1, 2007, By Michael Eby, Editor-in-Chief

Many years ago, when I worked for an electric utility, I found myself in the position of tracking changes to the National Electrical Safety Code (NESC)...

DOE Sets New Efficiency Standards for Utility Transformers 

Nov 1, 2007, 

Last month, the U.S. Department of Energy (DOE) published a final rule establishing new energy-efficiency standards for distribution transformers. The...

The Design Burden 

Nov 1, 2007, By Beck Ireland, Staff Writer

Driven by the desire for lower costs and earlier completion dates, many owners are abandoning the traditional design-bid-build project delivery method...

The ABCs of Fire Pump Installations 

Oct 1, 2007, By Ken Granle, HDR/Jordan Architects

When it comes to fire pumps, there's more to designing and installing these units than meets the eye. As projects become larger and more complex, such...

Using State-of-the-Art Screw-Based Lamps 

Oct 1, 2007, By James R. Benya, P.E., FIES, FIALD, LC, Benya Lighting Design

The cost of high-technology lighting is widely acknowledged as a barrier to the greater use of advanced sources in retail and other commercial lighting...

Making Amendments 

Oct 1, 2007, By Beck Ireland, Staff Writer

Although the three-year Code-making cycle for the 2008 edition of the National Electrical Code (NEC) recently closed, the dust has not yet settled on...

The Art of Selection 

Oct 1, 2007, By Michael Eby, Editor-in-Chief

On the surface, incorporating the concepts of selective coordination in the design of power distribution systems seems like a Why wouldn't you want to...

Exterior Egress Lighting Requirements 

Oct 1, 2007, By Keith Lane, P.E., Lane Coburn & Associates, LLC

When it comes to egress lighting requirements, there is conflicting verbiage between the Life Safety Code (NFPA 101), the Uniform Building Code (UBC),...

The Case of the Knockoff Motor 

Sep 1, 2007, By Curtis E. Falany, P.E., FORCON International Corp.

Have you ever heard the expression, green is ground the world around? I have, many times. But do you ever personally check the green conductor to see...

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