The Changing Face of CPM
Sep 1, 2007, By Tom Zind, Freelance Writer
The advent of ever-more powerful software has relieved contractors of tedious work ranging from bookkeeping to taxes to estimating. Time that used to...
Seeing the Light
Sep 1, 2007, By Gary Nangle, P.E., Cronis, Liston, Nangle & White, LLP
Although industrial lighting has historically been a step behind technologies used for other building types, many of the advancements made over the past...
Magnetic Motor Starter Basics
Sep 1, 2007, By Steve Vidal, P.E., Joseph J. Vidal & Sons, Inc.
The NEC defines a controller in a few different ways. In Art. 100, a controller is described as a device or group of devices that serves to govern, in...
Calculating Arc Flash Energy Levels
Sep 1, 2007, By Benjamin O. Medich, P.E., Ballinger
While not a major topic of consideration when designing and maintaining facilities in past years, code-enforcement bodies have become increasingly aware...
Battery Sizing Basics
Sep 1, 2007, By Shanmuga S. Pandian, SOFCON
Because stationary batteries and 48VDC power systems serve as lifelines for telecommunication networks, the reliability of these systems is of the utmost...
Addressing Arc Flash Concerns Through Smart Design
Aug 1, 2007, By Bill Woods P.E., Integrated Engineering Solutions
Every so often, the electrical industry is able to add to our understanding of what makes a safe, well-designed electrical system. This knowledge can...
Spin-Offs
Aug 1, 2007, By Beck Ireland, Staff Writer
At first glance, Kay-R Electric, Syracuse, N.Y., seems like a typical electrical contracting firm. The company specializes in electrical construction...
Putting the P in Engineer
Jul 1, 2007,
A century ago, the first engineering licensure law was enacted. Now, every state regulates the practice of engineering to ensure public safety by granting...
When Lightning Strikes
Jun 1, 2007, By Keith Lane, P.E., SASCO
Lightning protection can be a critical part of any building's infrastructure, providing protection to people and property. When assessing a particular...
Mitigating Harmonics in Industrial Environments
Jun 1, 2007, By John Houdek, Allied Industrial Marketing
No harmonic mitigation solution is ideal for every application. So, once you or your client decides to reduce harmonic distortion on a facility electrical...
The Basics of Large Dry-Type Transformers
Jun 1, 2007, By Keith Lane, P.E., SASCO
Like all of the electrical distribution equipment serving critical systems, transformers are a key component. That's why it's crucial to evaluate your...
Standard Motor Control Circuit Primer
Jun 1, 2007, By Steve Vidal, P.E., Joseph J. Vidal & Sons, Inc.
Single-phase and 3-phase AC squirrel cage induction motors need some type of control circuit to initiate a start or stop function. The two types of ladder...
Electrical Equipment Issues for Parked Aircraft
Apr 1, 2007, By Mike McClelland, General Dynamics Information Technology
Replacing many older aircraft ground servicing electrical systems, solid-state frequency inverters (SSFI) are primarily being used these days as a cost-savings...
Ladder Logic Basics
Apr 1, 2007, By Steve Vidal, P.E., Joseph J. Vidal & Sons, Inc.
A specialized segment of the electrical construction and maintenance industry, AC motor control is an area that requires specific knowledge in order to...
Nothing but Blue Skies
Apr 1, 2007, By Beck Ireland, Staff Writer
Revenue for overall design services remained hot for the majority of engineering firms in EC&M's 2007 Top 40 list. Commanding a sunny average year-over-year...
