Systems

 

 

Integrated electrical and low-voltage systems of all types—inside and outside a building—encompass the range of work that electrical contractors do. The articles in this section highlight different types of work, from security, fire and life safety, to traditional electrical power and distribution, to lighting, cabling and more. 

Data center connection is one of the most common uses for dark fiber, and it’s all due to growing data needs. You have probably seen graphs of the Internet’s growth and heard claims about how much data moves along it.

When one of the coaches was asked before the “big game” what would be the key to his team’s success, he said, “executing the fundamentals.” While blocking, tackling, passing and catching may work for football, Ohm’s and Kirchhoff’s Laws are fundamental to understanding any power quality issue.

In this power-hungry world, people find it unacceptable to lose their connection to electricity. A backup generator can supply peace of mind, bringing home- or business-owners the emergency power they need.

An estimated 3 percent of every sales dollar in the United States is spent on solving power quality (PQ) problems, according to Christopher Forthaus, senior product manager, test division, Ideal Industries Inc., Sycamore, Ill.


Electrical Contractor Magazine

More on Systems

 
Traffic Control on the Information Superhighway
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The information superhighway is about to experience bumper-to-bumper traffic snarls that—even with the best planning—will become increasingly difficult to untangle.

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Deja Voltage
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Energy ETC, Union City, Calif., founded in 1993, does a lot with only six employees.

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Eaton’s Power Xpert multipoint meter
Following the Power Flow
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Although submeters have long enabled building owners, multiresidential property managers and facility managers to better control energy consumption and costs, use of the technology has remained steady in about 10 to 15 percent of the commercial and multifamily residential building space.

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FTTH Technology
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Last month, I covered the challenges to traditional structured cabling from multimode optical fiber and wireless. Multimode fiber became the favorite cabling for the backbone but never made it to the desktop because every connected device already had a free Cat 5 port.

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Clearing Up Distortion
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In this third part of my series on the most common power quality phenomena, I group several IEEE 1159 categories together under the general description of “distortion.” Though one might argue that all power quality phenomena result in distortions of the voltage sine wave, these are the more steady-s

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Positioning

Warning: More Competition Ahead
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About three years ago, security service providers started offering smart security solutions complete with professionally monitored home security services that were enhanced with home automation and energy management capabilities.

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Home, Sweet Home
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There is no shortage of organizations predicting what the construction market will look like in 2014. We have all experienced how poorly predictions may work out in some areas (e.g., the weather).

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