Electrical Contractor Magazine

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. 

Eaton’s Power Xpert multipoint meter

Although submeters have long enabled building owners, multiresidential property managers and facility managers to better control energy consumption and costs, use of the technology has remained steady in about 10 to 15 percent of the commercial and multifamily residential building space.

Last month, I covered the challenges to traditional structured cabling from multimode optical fiber and wireless. Multimode fiber became the favorite cabling for the backbone but never made it to the desktop because every connected device already had a free Cat 5 port.

In this third part of my series on the most common power quality phenomena, I group several IEEE 1159 categories together under the general description of “distortion.” Though one might argue that all power quality phenomena result in distortions of the voltage sine wave, these are the more steady-s

Positioning


About three years ago, security service providers started offering smart security solutions complete with professionally monitored home security services that were enhanced with home automation and energy management capabilities.

Electrical Contractor Magazine

More on Systems

 
Copper Vs. Fiber
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As bandwidth demands continue to rise, both copper and fiber cable manufacturers are developing products that offer greater capacity and flexibility.

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A Blended Approach
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H&S Electric Inc., Valencia, Calif., has been in business since 1990. Its services include construction, commissioning, consulting, energy analysis, engineering safety, green building/­sustainability, maintenance and operations, systems management, systems design, and technology evaluation.

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Work Better Together
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Security system components can be integrated with various technologies including heating, ventilating and air conditioning (HVAC); building automation; energy management; information technology (IT); and fire and life safety systems, providing enormous opportunities for electrical contractors.


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Learning About Your Tools
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While we’re on the subject of tools, we should look at some of the testing tools in a fiber optic toolbox that often do not get enough attention (see Fiber Optics, February 2013).

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I Feel Connected: Home Automation Today
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Today’s home automation market isn’t so much evolving as it is mutating, like one of those time-lapse videos of microbes in a Michael Crichton science-fiction movie.

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Gotchas
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When using a power quality monitoring instrument, there are some “gotchas” to watch out for; otherwise, your efforts can either be wasted or, perhaps worse, misleading by coming to conclusions that aren’t valid.

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Taking Up The HEM: Home Energy Management
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Home energy management (HEM) continues to be a growing opportunity for electrical contractors. With the increased energy-efficiency concerns of consumers, along with utility energy-efficiency programs in both deregulated and more highly regulated markets, there’s greater demand.

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