Featured Stories

Recent Articles

 
EV Growth Not Fast Enough

Change is rapid in the digital age, sometimes at a dizzying pace. As that becomes normal, expectations grow for even faster change.


READ MORE
 
2015 National Solar Jobs Census Shows Growth 12 Times Faster Than Economy

In January, The Solar Foundation, in concert with the GW Solar Institute and BW Research Partnership, released the sixth annual National Solar Jobs Census Report, providing details on current employment, trends and projected growth in the U.S. solar industry.


READ MORE
 
Storage Is the Key to Solar’s Future

In the drama of renewable energy, no power source has performed better in recent years than solar. Despite improvements in efficiency and lower costs, the future of solar power is still uncertain, and as one researcher suggests, its growth could be its own worst enemy.


READ MORE
 
GE's Bright Stik, which it bills as a CFL replacement
GE to Phase Out CFLs in Light of New Energy Star Specs

Today, GE posted a satirical break-up letter addressed to the compact fluorescent lamp (CFL). The company is moving the focus of its consumer lighting business to the light-emitting diode (LED) lamp.


READ MORE
 
Denmark Generates 42 Percent of Its Power With Wind, Breaks Record Again

Denmark is shaping up to be wind power's sweetheart. In 2015, it generated 42 percent of its power with wind turbines. It is the highest portion of any country's energy needs fulfilled by wind. And Denmark is no stranger to this podium.


READ MORE
 
We're New Here

Happy New Year from your new ELECTRICAL CONTRACTOR editors! Surprised? You have that look on your face. It’s OK. We were, too.


READ MORE
 
Web Exclusive
The Need for Resiliency in 21st-Century Power and Network Infrastructures, Part 1

Welcome to the initial column of Intelligent Infrastructure Insights. We are going through a huge paradigm shift in real estate today.


READ MORE
 
Mobile scanner for Dynamic Systems CheckMate Toolroom system
Cool Tools: Tool Management 2016

Keeping track of tools—whether just a few or hundreds—is a challenge that computers have made much easier. Software developed specifically for managing tools and equipment has replaced simple lists and spreadsheets.


READ MORE
 
Congress Moving On Energy And Construction Legislation


Congress has been active recently on legislation that concerns electrical contractors. 



READ MORE
 
Taping Devices, Installing Grounding Electrodes And More

Jim Dollard has an extensive background in codes and standards. If you have a query about the National Electrical Code (NEC), Jim will help you solve it. Questions can be sent to codefaqs@gmail.com. Answers are based on the 2014 NEC.
 Tape over device terminal screws?



READ MORE
 
OSHA Likely To Raise Fines In 2016


Research conducted by the Institute for Work & Health (IWH) has convinced the Occupational Safety and Health Administration (OSHA) that more expensive fines for workplace-safety violations are likely to send stronger messages to employers to improve workplace-safety efforts.



READ MORE
 
2016 Fiber Update

In the past year, fiber optics underwent some important developments, some technical and some market-related. For those of you working in fiber optic network design and installation, the changes present opportunities and challenges.



READ MORE
 
Ideas That Work: Floor Box Prep and Low-Risk Wire Pulling

Every month, we pick the top Ideas That Work submitted by you, ELECTRICAL CONTRACTOR readers.


READ MORE
 
Illumigeddon

Solid-state lighting, such as light-emitting diode (LED) technology, promises significant short-term opportunities, notably in the retrofit market. However, many industry stakeholders are concerned about long-term risks LEDs present as they continue to gain acceptance.



READ MORE
 
Not Your Average DC

Storage batteries are used for many different types of electrical equipment throughout the National Electrical Code (NEC). The phrase “storage batteries” occurs in 13 locations in the NEC index. In addition, Article 480 is devoted to the installation requirements for storage batteries.



READ MORE
 
Parallel Lives: EGCs for parallel runs


When incorporating larger feeders or branch circuits into equipment, many commercial and industrial electrical designs require use of parallel arrangements.


READ MORE
 
What's In Store For Security in 2016?

The years leading up to 2016 were transitional for the security industry. As products and services continue to move to the cloud, the industry has been hard at work learning the morphing landscape and how to best approach the new wave of opportunity emerging from every front.


READ MORE
 
Out Of Control

For several years, I have been seeing a new hole in the theoretically 100-percent-complete electrical drawings we are provided for bidding. Within the last year, the problem has gotten bigger, driven by increasingly strict energy-usage requirements.


READ MORE
 
A Calculated Introduction

This article is the first in a series that provides a step-by-step approach for performing arc flash calculations.
 Arc flash studies and software



READ MORE
 
Can't Do Without

I often give my power quality (PQ) 101 course to new engineers or salespeople. This introduction starts with the basics: an overview of PQ phenomena based on IEEE 1159 Table 4.2 followed by Ohm’s and Kirchhoff’s laws and how they apply to power quality.


READ MORE