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. 

Don’t blink! If you do, you may miss some of the rapidly developing changes occurring in the technology sector.


I’m sure all of you have run into an issue such as this when installing a fire alarm system: One authority having jurisdiction (AHJ) wants one thing, and another AHJ wants exactly the opposite. What do you do? You can’t make both happy.

Last month, we discussed how long-distance dark fiber is used to connect data centers. Everywhere you look, you read about new data centers being built by Google or Facebook or Amazon or some other one with a strange, unpronounceable name.

Building-system-automation implementation has paved the way for sensor technology to make buildings more efficient, healthier and more comfortable for occupants.

More on Systems

 
Deterring the Mob Mentality
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The State College (Pennsylvania) Borough Council was looking for answers. During the summers of 1998 and 2000, students from Penn State took part in large-scale riots.

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Security Forecast
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Perhaps Homeland Security Defense initiatives haven’t been the windfall the security industry expected, but this market and other related low-voltage segments continue to grow. After Sept. 11, the phones wouldn’t stop ringing for many manufacturers.

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Layer Security with Sensors and Detectors
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Critical surveillance calls for a variety of detectors and sensors, and there are some heavy hitters to get the job done.

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Don't Gamble with Abandoned Cable
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There’s a problem that is either right in front of us or lurking around the corner. The problem involves data communications cabling above drop ceilings in commercial buildings—some of that old cable has been accumulating in ceiling spaces for years and years.

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The Dark Side of Fiber
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Generally, the dark side refers to Darth Vader and other not-so-good things. Leave it to the communications industry to turn something dark into something powerfully marketable and profitable—dark fiber.

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Where are the Fiber Optic Jobs?
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Since the fiber optic “bubble” burst a couple of years ago, employment ads for fiber optic installers have been scarce. But are real jobs still available? If so, where are they? Is the outside plant market dead? What about premises applications? What technologies are driving new installations?

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Testing for Category 6 Cabling
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As you may know, the Telecommunications Industry Association (TIA) has agreed that Level III-qualified testers are to be used when certifying or verifying Category 6 cabling systems (Category 6 cable is a 100-Ohm cable with transmission characteristics specified up to 250 MHz).

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