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. 

Shopping for products today involves a world of possibilities. There are online resources and distributors with brick-and-mortar stores and mobile apps to speed up the process. Price is fairly standard, barring volume or project discounts.


An arc fault circuit interrupter (AFCI) is an advanced circuit breaker that, as a way to reduce electrical fire threats, breaks the circuit when it detects a dangerous electric arc in the circuit that it protects.

What we have been installing in buildings and data centers for years that could be a lethal element for a terrorist attack?

In the changing dynamic of energy resources, efficiency is playing a vital role. Even if political support for efficiency diminishes, its importance to the future of energy remains.

More on Systems

 
Supply in Search of Demand

Microgrids are the hot new idea that’s been around forever. Thomas Edison’s first New York City power plants could be considered microgrids because those generating stations each acted independently from the others, serving their own “islands” of connected loads.


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New CABA Study Examines the State of the IoT

The Internet of Things (IoT) is a concept that gets thrown around a lot, and while many understand its general meaning, a deep examination of its various aspects and abilities may leave some heads spinning.


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Cabling Mysteries And Myths

Contractors often experience some confusion over the types of circuits required and permitted for fire alarm system installations. First, contractors need to recognize that they must install all circuits as required by chapters 12 and 23 of NFPA 72 2016, National Fire Alarm and Signaling Code.



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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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