June 2011

Cover Story

Safety Patrol

Jun 21, 2011 5:14 PM, By James R. Dukart, Freelance Writer

New OSHA program increases penalties for violators and cracks down on employers that are cutting corners...

Other Features

Troubleshooting Photovoltaic Systems

Jun 21, 2011 4:52 PM, By Ron Auvil, High Performance Mechanical Training

Solutions to three common problems you might find in the field...

Hazardous Substances

Jun 21, 2011 5:00 PM, By Beck Ireland, Staff Writer

Electrical contractors at high risk of exposure to hazardous substances on the job site...

Understanding Surge Protective Device Ratings

Jun 21, 2011 5:06 PM, By David Komm, Mersen

How to know what kA rating to use...

National Electrical Code

Grounding and Bonding — Part 1

Jun 21, 2011 4:27 PM, By Mike Holt, NEC Consultant

New 2011 NEC revisions clear up confusion between bonding and grounding...

Illustrated Catastrophes

Jun 22, 2011 10:21 AM

As usual, never consider the following commentary associated with these photos as a formal interpretation of the National Electrical Code (NEC). Without criticizing anyone or any product, the following scenarios present us with serious safety questions...

What’s Wrong Here? June 2011

Jun 22, 2011 10:57 AM, By Joe Tedesco, NEC Consultant

Can you identify the Code violation(s) in this photo?...

Stumped by the Code?

Jun 21, 2011 4:39 PM, By Mike Holt, NEC Consultant

Your most pressing National Electrical Code (NEC) questions answered...

Industry Viewpoint

Safety Crackdown

Jun 22, 2011 10:55 AM, By Mike Eby, Editor-in-Chief

Agency increases civil penalty amounts for specific violations, including electrical safety citations...

Motor Facts

Repair Guidelines for Motors & Generators

Jun 22, 2011 10:36 AM, By Tom Bishop, P.E., EASA

Best practices of ANSI/EASA AR100-2010: Recommended Practice for the Repair of Rotating Electrical Apparatus...

PQ Corner

Switching Operation Transients Lead to Failures

Jun 22, 2011 10:41 AM, By Larry Ray, Schneider Electric Engineering Services

Case study reveals answers to switching transient problem on plant’s power factor correction capacitor banks...

Project Spotlight

Wisconsin Wind Farm Makes Producing Electricity a Breeze

Jun 22, 2011 10:53 AM, By Stefanie Kure, Senior Associate Editor

Installation details on the massive Wisconsin wind farm project, which comprises 36 1.5MW wind turbines...

Contractor Connection

Rosendin Electric Helps Train Next Generation of Project Managers

Jun 21, 2011 4:45 PM

Rosendin Electric helps construction management students prepare for the Associated Schools of Construction Competition...

EMCOR Tops Fortune Magazine’s Most Admired List

Jun 21, 2011 4:50 PM

EMCOR Group recently named No. 1 World’s Most Admired Company by Fortune magazine for 2010...

Estimating 101

Understanding the Estimating Process - Part 6 of 12

Jun 21, 2011 5:24 PM, By Linda Candels, Candels Consulting

Things to consider when continuing the take-off...

Eye on Safety

Protective Clothing

Jun 21, 2011 5:25 PM

The latest FR clothing products for electrical workers...

Calculations Corner

Short Circuit Fault Calculations

Jun 21, 2011 4:23 PM, By Nikhil Bodhankar, P.E., LEED AP, CHA

Sample fault current calculations help contractors understand the source of power flow problems...

Product Spotlight

Focus on relays

Jun 22, 2011 4:03 PM

The DRM Series of pluggable relays is available in two and four changeover versions for AC and DC coil input voltages...

Analyze This

Analyze This, June 2011

Jun 21, 2011 4:21 PM

Projected percentage increase in cement consumption in 2011, according to the most recent economic forecast from the Portland Cement Association (PCA)...

New Products

New Products, June 2011

Jun 22, 2011 10:37 AM

The M18 cordless 53/8-in. metal saw features a 4-pole frameless motor that the company says delivers up to 35% more cutting power...

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