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. 

When a customer complained about the lights flickering in the past, it was difficult to get a quantitative measure of the problem. The parameter, Pst (perceptibility short term), specified in IEC Std 61000-4-15 and eventually IEEE Std 1453-2004, now provides such a quantitative approach.

On November 2, the United States Department of Agriculture announced a $2.5-billion investment in rural electric infrastructure improvements. These funds will be used to support improvements in 27 states, with the hope of creating jobs and supporting economic development.

Electrical contracting—and the electrical construction industry as a whole—may not be the first thing that comes to mind when you think of innovation.

FCC Chairman Ajit Pai

On Tuesday, Nov. 21, Federal Communications Commission (FCC) Chairman Ajit Pai announced plans to hold a vote for the repeal of the FCC's net neutrality rules on Dec. 14. Despite popular support of the FCC's net neutrality rules, the repeal is widely expected to pass.

More on Systems

 
Sensory Overload: BLE Indoor Positioning Systems

Just as building intelligence systems draw information about a building’s environment to help manage the facility’s efficiency and comfort, a low-cost sensor system is piggybacking on that trend, and it offers new opportunities for contractors.



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Figure 1: Power quality phenomena over the voltage range
Put A Label On It: An Introduction to RVC


The lights blinked for an instant, or a running appliance made a sound like the motor was slowing down. No digital clocks were blinking, no computers restarted, no production lines stopped.


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Security Threats And Vulnerabilities

Security systems solutions are designed to keep customers and their facilities safe, detect intruders, and obtain visual evidence and identification.


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The Real Reason We Test Fire Alarm Systems

Many contractors have said to me, “The fire alarm system is supervised, and I have a green light on the fire alarm control unit.


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Team Develops Streetlight Diagnosing Software, Wins Smart Cities Hackathon

A new piece of software developed by students will make streetlight outage detection a lot easier and faster for the City of Las Vegas.


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Real Opportunities: Trillion Dollar Infrastructure Project

In any industry, those who are connected get the jobs (no pun intended). It’s no different in the electrical construction industry. If you are reading this column, you are already part of the “in crowd” (Intelligent Infrastructure Insights).


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Product Selection Means More Than Price

Shopping for security products involves a world of possibilities. There are online resources and distributors with brick and mortar stores and mobile apps to speed up the process. Price is fairly standard across the board, barring any volume or project discounts.


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