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

 
Fiber Optic Measurement Errors
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Testing installed fiber optic cabling or patchcords is not difficult, but sometimes it seems the results you get don’t make sense. After 20 years in the business, I’ve probably seen most of the possible errors. If I share them with you, perhaps you will avoid them.

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Balancing Fiber and Copper in Networks
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There are many options when choosing the correct cabling media for your network installation. Category 5e, Enhanced 5e, Category 6, single-mode, and multimode fiber are among the selections you have.

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Next-generation Multimode Optical Fiber - Where Does It Stand?
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In the May 2001 Electrical Contractor, my article mentioned that a high laser-bandwidth 50-micron fiber was being considered for use for LANs less than 300 meters in length. So where does it stand, now that five months has past?

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A Web-Footed Tour of NECA's Show
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Recent NECA Shows included many dot-com exhibitors. While this month’s 2001 preview isn’t as heavily populated, an e-commerce “tour” is possible in Washington, D.C., from October 21 to 23. For information, see www.necashow.org.

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Homes Are Becoming Smarter than Humans
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First it was cars chirping up to let forgetful drivers know, “Your lights are on.” Now, the home is becoming smarter and better able to “think” for itself. Whether you love or hate the idea of a house that is smarter than you are, the fact is that the smart home is coming.

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VDV Cabling Systems Update
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In a period marked by turmoil in high-tech businesses, voice, data, and video (VDV) cabling technology continues to progress toward better standards and higher bandwidth for commercial applications.

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