Product News
Apr 1, 2009,
Double-conversion UPS The A11H Series true online double-conversion UPS features a 55VAC to 150VAC input voltage window and a 40-Hz to 120-Hz input frequency...
DOD Unveils Stimulus Spending Plans
Apr 1, 2009,
Department of Defense (DOD) releases expenditure plan for $2.3 billion worth of military construction projects to be funded with the American Recovery and Reinvestment Act of 2009...
Module Behavior
Apr 1, 2009, By Beck Ireland, Staff Writer
Prolonging PV module life by improving inverter maintenance and manufacturing...
Product News
Feb 1, 2009,
Process monitor The Sentry process monitor allows up to four channels of input information to be monitored and up to four output relays to operate an...
Product News
Dec 1, 2008,
LED lamp The 120MBLS-X-CX is a wide-angled LED that operates to a maximum of 130VAC while drawing less than 8mA 85% lower than that of a standard 120...
Product News
Dec 1, 2008,
Area light This outdoor LED area light provides up to 60% energy savings compared with traditional HID lamp sources and optical systems, according to...
Product News
Dec 1, 2008,
Power-conditioned UPS The ONEAC brand ONePlus Series power-conditioned UPS features a power range of 250VA to 1,000VA and operates in 120V, 60 Hz, or...
Box Fill Calculations
Nov 1, 2008, By Mike Holt, NEC Consultant
Box fill isn't just the number of wires in the box — it's the total volume of the conductors, devices, and fittings in a box....
Keeping Your Electrical Project On Track
Nov 1, 2008, By David Brown, D. Brown Management
All electrical projects start with a schedule or, at the very least, some basic milestone dates. Meeting these dates is the simple, strategic goal of any project...
Illustrated Catastrophes
Nov 1, 2008, 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)....
Timing for Residential Housing Recovery Remains Uncertain
Nov 1, 2008,
The steep decline in sales of new single-family homes should be coming to an end in early 2009...
Product News
Nov 1, 2008,
Connectors ETP 4QS connectors are for use with liquidtight flexible metallic electrical conduit. UL-listed for Class I, Div. 2 hazardous location electrical...
Interconnection Efficiency Examined in New Report
Nov 1, 2008,
Three new reports, recently released by the Solar America Board for Codes and Standards (Solar ABCs), shed some light on key issues facing the electrical industry...
September Winners
Nov 1, 2008,
Our three winners this month were: Marsha Squier, a certified permit technician I with Glenn County Building Department in Willows, Calif.; Scott Bitzer,...
BICSI and U.S. Green Building Council Endeavor to Create LEED Technology Credits
Nov 1, 2008,
The Building Industry Consulting Service International (BICSI), Tampa, Fla., and the U.S. Green Building Council (USGBC), Washington, D.C., recently announced...
On the Bright Side
Nov 1, 2008, By Mike Pile, President, Mike Pile Partners, a Solar Consultancy
Amid the housing slump, banking crisis, wild swings of the stock market, and a generally gray economic outlook, there is a glimmer of virtually untapped opportunity in the electrical industry...
Product News
Nov 1, 2008,
Power management software PowerAlert software features three components for power management. PowerAlert Network Management System lets network managers...
Iowa Bridge Spans the Gap Between Infrastructure and Art
Nov 1, 2008, By Stefanie Kure, Senior Associate Editor
Come nightfall, the city's Norbert F. Beckey Bridge, which stretches 1,500 feet from Iowa to Illinois across the Mississippi River, is awash in a rainbow of colors emanating from 43 light-emitting diode (LED) fixtures...
When Does Poor Power Quality Cause Electronics Failures?
Nov 1, 2008, Edited by John Dedad, Senior Director, Editorial and EC&M Development
To many of us, the utility power grid is a vast system of unknowns. Its performance can make unprotected electronic equipment useless....
The Basics of Vector Analysis Part 4
Nov 1, 2008,
In this last installment, we'll talk about using simple parallelogram relationships and trigonometry to determine neutral currents in balanced and unbalanced circuits....
Focus on Specialty Products
Nov 1, 2008,
Inspection window The Viz-IR inspection window maintains a guard between the user and energized electrical conductors and circuits eliminating the need...
To Catch a Thief
Nov 1, 2008, By Beck Ireland, Staff Writer
For the last five years, Mesa has been battling an escalating copper theft epidemic....
The Path of Least Resistance
Nov 1, 2008, By Beck Ireland, Staff Writer
Conventional motors account for 64% of the nation's energy use, according to the U.S. Department of Energy (DOE), Washington, D.C. Of that amount, half...
Product News
Nov 1, 2008,
Luminaire The SofTrace luminaire features a concealed lamp center panel with efficiency greater than 95% and total luminaire efficacy as high as 87 lumens...
