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. 

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.

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

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

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.


More on Systems

 
More To Come: A Sneak Peek at the 2019 NFPA 72, Part 2


In October, I listed some of the significant changes proposed for the 2019 edition of the NFPA 72, National Fire Alarm and Signaling Code. This month, I cover more of the important proposed changes. Keep in mind that this is based on the public input stage.


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Fluke’s laser distance meter
Cool Tools: Measuring Tools

Measuring tapes are a basic and necessary tool. When the dimension to be measured is inaccessible, handheld, laser 
distance-measuring tools may be the only safe and practical solution. 
 There are many options today for taking measurements on structured-wiring projects.
 Laser measuring tools



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A True Turnkey Integrator

Ferndale Electric Co., Ferndale, Mich., which employs an average of 130 electricians, performs electrical work for automotive plants, power plants, bottling plants and other industrial facilities. It also renovates electrical systems for lift bridges and completes major projects for airports.



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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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