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. 

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.

There is no shortage of organizations predicting what the construction market will look like in 2014. We have all experienced how poorly predictions may work out in some areas (e.g., the weather).

After years of low compound annual growth rates (CAGRs) and limited innovation, the home security market is finally evolving with new and affordable security control products, and systems are becoming widely available, according to a November 2013 blog from Amdocs Inc., a software and service provid

Electrical Contractor Magazine

More on Systems

 
Test Flying Drones for Power Restoration
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Recent test flights in Alabama directed by the Electric Power Research Institute (EPRI) of prototype unmanned aerial systems (UAS) and payloads of video and other sensing equipment indicate that drone technology could be deployed to assess damage to electric transmission and distribution systems fol

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Smart Grid Goes to College
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Consider it a luxury. As a particular technology matures and becomes widely accepted, a new set of challenges emerge. Such is the case for the smart grid, which is passing the point of being a novelty and entering the realm of accepted practice.

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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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An Open-Source Test
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Last month, I discussed one of the most important tools in the fiber tech’s toolbox: the fiber optic power meter. This month, let’s examine the other tool that is equally important: the test source used with the power meter to measure the loss of the cable plant.

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Because I Said So
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I recently realized that our failure to properly train fire alarm system technicians has created a group of workers who simply do not understand the reasons they do what they do. When a technician asks for the rationale behind a procedure, we often respond, “Because the code requires it.”


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