The Fundamentals of Photovoltaic Systems
Jan 1, 2012 9:00 AM, By Ryan Mayfield, Renewable Energy Associates
The basics of photovoltaic (PV) equipment and components...
Understanding the Estimating Process — Part 12
Dec 21, 2011, By Linda Candels, Candels Consulting
Final steps in wrapping up your bid...
Understanding the Estimating Process — Part 11 of 12
Nov 22, 2011, Linda Candels, Candels Consulting
Submitting your bid...
Understanding the Estimating Process — Part 10 of 12
Oct 21, 2011, Linda Candels, Candels Consulting
Preparing your proposal letter...
Understanding the Estimating Process — Part 9 of 12
Sep 21, 2011, Linda Candels, Candels Consulting
Getting closer to your proposal...
Understanding the Estimating Process — Part 8 of 12
Aug 19, 2011, Linda Candels, Candels Consulting
What happens after the take-off...
Wiring Methods for Hazardous Locations
Aug 19, 2011, David Herres, Master Electrician
NEC guidelines for electrical contractors working in hazardous locations...
Understanding the Estimating Process — Part 7 of 12
Jul 29, 2011, By
Things to consider when finishing the take-off...
Understanding Surge Protective Device Ratings
Jun 21, 2011, By David Komm, Mersen
How to know what kA rating to use...
Troubleshooting Photovoltaic Systems
Jun 21, 2011, By Ron Auvil, High Performance Mechanical Training
Solutions to three common problems you might find in the field...
Short Circuit Fault Calculations
Jun 21, 2011, By Nikhil Bodhankar, P.E., LEED AP, CHA
Sample fault current calculations help contractors understand the source of power flow problems...
Out of Sight, Out of Mind
May 24, 2011, By Doug Post, P.E., Interstates Engineering
The pros and cons of using underground and “in-the-slip” conduit installations...
How to Use Chapter 9 in Your Next Design
May 24, 2011, By W. A. “Al” Werning, Freelance Writer
Tips on how to determine proper raceway size...
Hand Protection
Apr 21, 2011, By Jason Kokoszka, Ansell Construction
How to supply workers with a glove they’ll actually want to wear...
Breaking Down the Basics of Cable Pulling
Jan 24, 2011, By Mark DeVeau, P.E., TMP Consulting Engineers, Inc.
Things to consider before you start your next cable pull...
Solar Photovoltaic Systems — Part 2
Oct 20, 2010, By Mike Holt, NEC Consultant
Part 2 on Applying the electrical requirements in Art. 690 of the National Electrical Code (NEC) for photovoltaic systems...
Alternatives for Branch Circuit Wiring in Data Centers
Sep 28, 2010, By Greg Korstad, P.E., LEED AP, Swanson Rink
Pros and cons of common branch circuit wiring installation methods in data centers...
Arc Flash Hazard Analysis Primer
Sep 28, 2010, By John J. Kolak, Praxis Corp.
Proper implementation of arc flash hazard analysis can significantly reduce injuries from arc flash and arc blast events...
Do You Have a Calibrated Arm?
Aug 1, 2010, By Christel Hunter, Alcan Cable
The importance of using a torque wrench on electrical connections...
The Basics of Personal Protective Grounding
Jun 1, 2010, By John J. Kolak, Praxis Corp.
Following proper personal protective grounding/bonding practices is just as important as wearing the proper PPE...
The Basics of Industrial Control Panels
May 1, 2010, By Mark Lamendola, Electrical Consultant
A closer look at NEC Art. 409, which provides the minimum safety requirements for industrial control panels...
Cranes, Hoists, and the NEC
Nov 1, 2009, By Mark Lamendola, Electrical Consultant
Avoid confusion before your next lift by learning the National Electrical Code requirements in Art. 430 and 610...
The Basics of Control Relays
Oct 1, 2009, By David Bredhold, Eaton Corp.
Inside the world of control relays, including how they’re constructed, how they work, and where they’re used...
The Basics of Electrical Overheating
Jun 1, 2009, By Chris Korinek, P.E., Synergy Technologies LLC
Practical tips for identifying and reducing the most common causes of electrical fires...
The Basics of PF Correction on Single Induction Motors
Jun 1, 2009,
How to size capacitors correctly and lower your electrical energy usage costs in the process...
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...
