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. 

Most in the construction industry should be familiar with building information modeling (BIM).

In North Carolina, on July 27, PCL Civil Constructors working on the Herbert C. Bonner Bridge project, which spans 2.8 miles and is the only connection between Hatteras Island and Bodie Island, severed a three-phase, 115-kilovolt underground transmission line.

Capacitors that blew up from a power supply failure

In my 40-plus years in the industry, I have analyzed customers’ power quality monitor data files and heard their stories about hundreds of things that have happened in their facilities or homes: some mysterious, some catastrophic, some even comical.

According to an August 3 report from the U.S. Energy Information Administration (EIA), as of July 2017, 30 states plus the District of Columbia have adopted energy efficiency policies. These policies range from mandated requirements to voluntary goals, as well as pilot programs.

More on Systems

 
Colorado Community Getting Smart City Makeover


Pena Station, once a rail station south of Denver International Airport, is on track to become one of the most futuristic smart cities in the nation, due to a recent decision by Japan-based Panasonic to move its Enterprise Solutions Division headquarters there.


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Knowledge Is Power: Cabling for Project Managers


I think most people would agree the responsibility for a project’s success or failure ultimately lies with the project manager.


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A More Connected Tomorrow: Home Devices

When a dead body was discovered in a hot tub in Bentonville, Ark., in late 2015, detectives looked for forensic evidence in uncommon places.


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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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