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

 
California Lawmakers Raise The Energy-Storage Standard


As renewable power increases its market share, energy storage assumes a larger role. Recognizing the importance of government benchmarks, California lawmakers have taken steps to raise the state’s energy-storage standard.



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Google Fiber Hits Pause—What Does It Mean?

On October 25, Google announced it would "pause" development of Google Fiber. In addition, the division’s CEO, Craig Barratt, resigned, and the division was rumored to be laying off about 9 percent of its staff.


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J.M. Electrical Completes Middle-School Control-System Project


J.M. Electrical Co., a Lynnfield, Mass., contractor with a specialty in advanced automation building system installations, recently completed project operations at the 85,000-square-foot Hanscom Air Force Base Middle School in Bedford, Mass., which holds 312 students.


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Feeling Uncertain: Testing, Accuracy and Optical Power Measurements


Last month, I wrote about measurement uncertainty and metrology, the science of measurements. This month, I get more specific and cover the uncertainty of some basic fiber optic measurements, starting with optical power.



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An Endless Summer: Persistent Power Quality Problems

While renovating a basement, I came across a poster for “The Endless Summer,” a film released 50 years ago in which two surfers travel the world’s oceans, chasing warm weather and surfing adventures.


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Wired For The Information Age

Automation is on the cusp of changing our lives—from the speed with which an ecommerce order is fulfilled, to the method we use to check in to our flight and travel to our destination.


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Central Intelligence: The IoT Brings Big Changes 
to Data Centers

The Internet of Things (IoT) may alter the appearance of data centers. The IoT is a growing system of data that puts demand on existing data centers and pushes for new facilities that are centrally located and “on the edge,” a trendy phrase to describe the point at which sensors are installed.


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