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. 

The new year is upon us. For electrical contractors that continue to add low-voltage security to their operations, there is a light shining brightly on what can really boost the overall future stability and profitability of a company, and that’s the category of video surveillance.


Regardless of the changes in our federal government this year, there is one thing we know for sure: we have a new NFPA 72 2016, National Fire Alarm and Signaling Code from the National Fire Protection Association. Does that mean we should have started using the new code on Jan. 1?

The proliferation of alternative forms of lighting—for example, LED lamps—has been accelerated by the significantly limited sale of incandescent light lamps. In case you forgot, incandescents failed to meet the efficiency rules of the Energy Independence and Securities Act of 2007.

The application of fiber optics has been growing rapidly.

More on Systems

 
SpaceX Files FCC Application for Space Internet

One of the most popular points of contention in broadband internet delivery is that much of the United States is underserved or not served at all by internet speeds that meet the Federal Communications Commission's (FCC) definition of high-speed internet.


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Recording Available: Protection at the Point of Use Webinar

Arc fault circuit interrupters (AFCIs) bring a higher level of protection to today’s homes, many of which are increasingly overwhelmed by the growing electrical demands of our high-tech and appliance-rich lifestyles.


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Fiber Optic Testing

Continuing the thread of measurement uncertainty in fiber optics, this month I discuss measuring the loss of an installed fiber optic cable plant. Optical loss, tested with a light source, power meter and two reference cables, is the most common measurement in fiber optics.



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Waveform with harmonics: 8 percent of fundamental for the 2nd harmonic, 18 percent for 3rd, 10 percent for 5th, 5 percent for 7th, 2 percent for 9th
Up And Coming

There was a recurring topic at the summer meetings of the IEEE Power Quality Subcommittee’s various working groups and task forces, and it came to a head at a panel session on the latest version of IEEE 519 2014, IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Syste


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The Shift Continues: Service Revenues Rise in Security Systems Integration


Moving to upstart revenue streams and mobile, remote systems management is the way smart, low-voltage electrical contractors are doing something about the changing security and integrated systems market.


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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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