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. 

“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.

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.

Electrical Contractor

More on Systems

 
Product Focus: Distribution/Routing
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Ethernet IP Gateway

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Video Technology: At the Speed of Light
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Anything––and everything––is a possible subject of closed-circuit television (CCTV) surveillance.

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Up the Learning Curve, Together: Distributors and Contractors
by Staff |
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E-commerce isn’t dead, it’s gone underground. Here’s a look at how some larger electrical distributors are working with contractors—far from the glare of the spotlight.

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Fire Alarms: Not Just Another Low-Voltage Installation
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For some, installing fire alarms is a lucrative sideline. For many, it is a full-time pursuit.

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The Web Can Help Us Do Important Things, Three Large Contractors Say
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From Louisville, St. Louis, and Leavenworth, Kan., the three contractors profiled—last month, this month, and the next—are working to become even more lean and efficient.

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Improving Fiber Optic Connection and Splicing Techniques
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There’s no doubt that termination of fiber optic cables is the most difficult part of the fiber optic installation process. Pulling cables is easy, as they are more rugged than Category 5 copper cables, and installing patch panels and other hardware is straightforward.

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Emerging Fiber Optics Applications Benefit Your Customers
by Staff |
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To most of us, when we think of fiber optics, we think first of the telephone companies who use fiber for their long-distance lines and connections between local offices.

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