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. 

All of that dark fiber we have been discussing the last few months is getting used for some fast-growing applications, and the fastest may be connecting cell towers. Cell phones have evolved into mobile data devices. Smartphones and tablets consume vast amounts of data.

A hot summer’s evening usually begets long lines at the local ice cream shop. Recently, at one such shop, the line grew extra long when the cash registers and credit card machines mysteriously powered off and on.

Historically, if a problem occurs with a traditional string power inverter that links several solar panels together in series, or even simple shade, that issue can bring down an entire solar photovoltaic (PV) array.

As government tax credits and utility rebates and incentives dry up, energy-efficiency improvements have evolved beyond the low-hanging fruit of fixture replacement at low cost.

More on Systems

 
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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TIA Approves Category 6
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After almost five years in the making, Category 6 is—believe it or not—now an official standard, having been approved and published.

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Why Deregulation Failed--And What Comes Next
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The government’s deregulation of five major industries—airlines, telecommunications, cable television, banking and electricity—has harmed customers far more than helped them, according to a study released by Consumers Union.

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Renewable Energy--Untapped Resource
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Federal energy policy now includes emphasis on increasing electric generation from renewable resources. These usually include bioenergy, hydrogen, ocean, wind, solar, geothermal and hydropower resources.

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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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Troubleshooting Fiber
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The fiber optic cable you just installed failed testing. What do you do next? How do you find the problem and fix it—fast? Fortunately, fiber optics is easy to install and experienced installers generally find that about 95 percent of all fibers they install will test good.

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