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. 

Six years ago, with no experience as an internet service provider (ISP) or telecom service provider, Google Fiber generated an immense amount of excitement by announcing that the company was going to build a gigabit-speed fiber-to-the-home (FTTH) network for Kansas City, Mo., a city chosen from more

Access control is one of the most prevalent and longstanding methods of securing entrances, exits and areas within protected premises.

Appetite for intelligence


The simplicity and ubiquity of home automation means opportunity for ECs. For one thing, today’s systems come ready to install, and contractors can learn installations in a matter of hours rather than weeks. For many ECs, it has been a welcome transition.


Beginning with the 2010 edition of NFPA 72, National Fire Alarm and Signaling Code, all of the “styles” of circuits were deleted, and four “classes” were added. A new chapter, Circuits and Pathways, was added during the reorganization of this code.

More on Systems

 
Benefits of Demand-Response Programs

According to a recent report from the American Council for an Energy Efficient Economy (ACEEE), demand-response programs can reduce utilities' peak demand an average of 10 percent, complementing savings from energy efficiency programs.


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But Why? Understanding When Things Go Wrong


When I arrived recently at a residential construction site to build a covered porch, the homeowner was busy cutting a tree away from the power lines to the house with a chain saw.


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Design For Living: Fiber Optic Network Design


Last month, I discussed the growing pains I have seen in fiber optics. Some of the problems have been issues with incompetent subcontractors, but poor network design seems to cause just as many issues. Why is that?



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Phasing in Intelligence

As building intelligence becomes a mainstream demand in small to mid-sized buildings and companies, contractors must find ways to offer solutions without crippling startup investments.


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The 24/7 Power Era: Making Secondary Power Primary


Everything came to a sudden halt for JetBlue on Jan. 14, 2016. Its website crashed. Passengers became irate. Long lines formed. Some 200 flights were delayed. This nightmare began when JetBlue’s data center lost power and did not have a responsive backup network.


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Franklin & Marshall College Poses a Challenge for Lighting Update

Updating a lighting system to improve energy efficiency seems like a no brainer. The facilities in the space will be improved, and it saves the owner money. What could be the problem with that?


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Swiss Scientists Warming Up With Stored Heat

Imagine storing summer heat. Renewable energy has always been about the art of the possible, turning the obvious and plentiful into a reliable source of clean fuel. If the wind, waves and even the almighty sun can be harnessed for generation, almost anything else can be captured, too.


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