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. 

As energy technology continues to evolve, residential customers are becoming more content with the service they receive from electric utilities. The 2017 Electric Utility Residential Customer Satisfaction Study, released by J.D.

For years, there has been concern about the waking ability of fire alarm audible notification appliances. In general, they have gone through numerous changes since the 1980s. Back then, it was common to use bells to signal an alarm.

The marriage of digital technology, renewable energy and efficiency has been highly disruptive to the traditional utility business model. At the same time, according to a recent study, utilities can benefit, too.

The role of cars in power consumption and generation has taken a new twist. First electric vehicles (EVs) emerged as a viable alternative to driving on fossil fuels. Then the sophistication and capacity of battery technology expanded the utility of EVs into the realm of storage on the grid.

More on Systems

 
Philadelphia One Step Closer to Muni Wi-Fi Accessibility

The city of Philadelphia is steamrolling ahead toward its goal of becoming the nation’s first completely wireless major city. In May, Mayor John F. Street announced the approval of a 15-square-mile test zone for the city’s fledgling Muni Wi-Fi network.


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Waste Not, Want Not

At wastewater treatment facilities, microturbines are turning the gases emitted by waste into electricity. Dairy farms are powering their own facilities with methane gas from cattle waste.


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The Truth About Fiber Optics

Fiber optics is not a new technology, having been available for communications for more than two decades now, but fiber still seems to have the “rocket science” aura. (In the interest of full disclosure, I once was a rocket scientist.


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Consistency Builds Profit

Over the last few weeks of traveling, I have spoken with colleagues at meetings in various states. I realized that every time we had a choice of where to eat breakfast or lunch, we would universally choose a Cracker Barrel restaurant. We never hesitated in this choice. Why?


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New Record Achieved in Data Transmission
by Staff |

Particles of light serving as “quantum keys”—the latest in encryption technology—have been sent over a record-setting 200-kilometer fiber optic link by researchers from the National Institute of Standards and Technology (NIST), NTT Corp. in Japan and Stanford University in California.


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What to Bid

Green buildings are moving into the mainstream of the U.S. construction industry. Increasingly, private and public owners are requiring that their building projects be designed and constructed in an environmentally responsible manner and be recognized as a green building.


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Datacom Maintenance Work for New and Existing Installations

Datacom maintenance work today is different from a few years ago. Since there are no moving parts and so many installations are configured at initial startup and not modified for some time, there isn’t anything to maintain.


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