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. 

It is a sign of tight budgets when facility directors at most K–12 and higher education institutions receive mandates to defer maintenance on their existing building inventory to allow for budget dollar application elsewhere.

“Dark fiber” is a term often heard in conversations about fiber optic communications. Perhaps this is because it has a name that sounds evil or nefarious. But dark fiber is just fiber that has been installed and is not currently in use; instead, it is reserved for spares or future use.


If you’re going to do a job right, you need the right tools. Today, the definition of tool goes beyond wire crimpers and multimeters. It now includes smartphones and the apps that make them crucial to a contractor’s success. The following are some of the apps that contractors could consider using.


Last month, we looked into positive, negative and zero-sequence components, also known as symmetrical components, with virtually no math involved.

Electrical Contractor

More on Systems

 
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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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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The Alphabet Soup of Fiber Optic Connectors
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One of the negative aspects of high tech is its habit of using abbreviations and acronyms for practically everything. It gets so bad, we joke about all the TLAs or three-letter acronyms.

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TIA Approves 10/100 Mbps Fiber Ethernet Solution
by Staff |
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“Better late than never” probably best describes the latest approved Local Area Network (LAN) standard—ANSI/TIA/EIA-785 100 Mbps Physical Layer Medium Dependent Sublayer and 10 Mbps and 100 Mbps Auto-Negotiation on 850nm Fiber Optics.

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