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. 

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.


Employers are responsible for providing a safe workplace. Reducing or eliminating the number and severity of musculoskeletal disorders (MSDs)—which affect muscles, nerves and tendons—and their associated costs is an important component in achieving that goal.


Electrical Contractor Magazine

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Fiber's Biggest Enemy
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Your mother was right--dirt is bad. Cleanliness can be next to impossible on the jobsite, but when it comes to fiber optics, it's mandatory. The problem is simply that fiber itself is small, about the size of a human hair.

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Simultaneous Disconnects, Generator Wiring and More
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CODE CITATIONS Article 100 Definitions Article 210 Branch Circuits Article 230 Services Article 250 Grounding Article 312 Cabinets, Cutout Boxes and Meter Socket Enclosures Article 445 Generators Article 518 Places of Assembly Disconnect for multiwire branch circuit Q: There was a requirement in the

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Flood of Products Hits as VoIP Tide Breaks Strong
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The giant wave washing over low-voltage technology is VoIP (voice over Internet protocol). Anticipating contractors’ needs, vendors introduced a flood of products to the market.

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Construction IT--Where Now?
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The dot-com nuttiness is over. Were there doubt about that, it was confirmed at the A/E/C Systems 2002 show in June in Anaheim, Calif. There were a few dot-coms, but for the most part, exhibitors--and speakers at construction industry sessions--were moving on.

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Card Access with All the 'Smarts'
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In access control, the innovation never stops. In the cards themselves and the readers, technology has stepped up to provide the highest levels of security ever.

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Wiring Transportation Hubs for Modern Communications
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In 1996, Congress passed the Telecommunications Act to “provide for a pro-competitive, de-regulatory national policy framework designed to accelerate rapidly private sector deployment of advanced telecommunications and information technologies and services to all Americans ...” That’s all well and g

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