Understanding LED Technology
Apr 1, 2002, By Joe Knisley, Senior Editorial Consultant
LEDs may be little, but new high-brightness models are producing a considerable amount of light....
A Brief Guide to Pin-and-Sleeve Devices
Apr 1, 2002, By Arthur Hansen, Cooper Wiring Devices
If properly selected, pin-and-sleeve devices can cure some common installation problems....
How GFCIs Work
Mar 1, 2002, By Mike Holt, Mike Holt Enterprises, Inc.
You may know what a GFCI is, but do you really know how it works? A basic understanding of the device can prevent safety problems....
The Basics of Electrical Systems
Jan 1, 2002, By Mike Holt, Mike Holt Enterprises, Inc.
Do you understand neutrals and fault current paths?...
Understanding NEC Circuit Classifications
Dec 1, 2001, By Mike Holt, Mike Holt Enterprises, Inc.
To understand how and when to apply NEC Art. 725*, you must first understand how the NEC classifies remote-control, signal, and power-limited circuits. Each classification addresses different energy levels....
Understanding Circuit Breaker Markings
Nov 1, 2001, By Mike Holt, Mike Holt Enterprises, Inc.
What you don’t know about circuit breaker markings can trip you up....
The Basics of Isolated Grounding Receptacles
Oct 1, 2001, By Mike Holt, Mike Holt Enterprises, Inc.
Are your isolated ground receptacles safe?...
The Basics of Reducing Touch Potential
Apr 1, 2001, By Mike Holt, Mike Holt Enterprises, Inc.
Remove voltage on metal parts of an electrical system to protect against lethal shock. Here's a true or false question for you. Connecting metal parts...
Understanding and Specifying Optical-Fiber Cables
Apr 1, 2001, By Paul Rosenberg, Datacom Consultant
Structured cabling specifications ensure you purchase and install the right product for every job. Most significant installations of structured cabling...
GFCI Basics
Feb 1, 2001, By Mike Holt
A GFCI is only as good as its installation and inspection.A ground-fault circuit interrupter (GFCI) is the only protection device designed to protect...
Basic Principles and Best Practices
Dec 1, 2000, By Mark Lamendola
Our Back to Basics department is extremely popular. I think one reason why is all of us recognize the value of describing something simply, getting to...
The Basics of Delta-Wye Transformers
Dec 1, 2000, By C. Sankaran
The electrical configuration of the delta-wye transformer makes it the most popular transformer connection in the world. When it comes to making proper...
Understanding Outdoor Area Lighting Design
Oct 1, 2000, By Joseph R. Knisley
A wide range of solutions can meet the diverse needs of site illumination....
The Basics of Infrared Thermometry
Oct 1, 2000, By Kate McGuire
You can gather important temperature information quickly and safely using infrared thermometers. But, you should know some key principles first....
Basics of Transformer Voltage Efficiency
Sep 1, 2000, By Mark Lamendola
Efficiency is a function of a transformer's power losses, but it's easy to lose sight of what transformer efficiency means in the real world....
