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. 

I often receive data files recorded from power quality monitors to analyze the reason a piece of equipment experienced an event. This analysis is followed by determining the cause and who is to blame.

If you buy a new car in 2040, there’s a better than 50/50 chance it will be powered by electricity rather than gas.

Electronic access control is one of the most proprietary technologies (beside fire alarms) with the largest installed base of legacy equipment in the physical security industry.

Since 1999, the National Fire Alarm and Signaling Code has required survivability for certain circuits that need to work during a fire. In truth, the code has always required speaker circuits serving emergency voice/alarm communications systems to meet a performance requirement for survivability. 


More on Systems

 
On the Edge of Greatness

The hottest thing out there this summer is not the weather but the highly anticipated iPhone from Apple Inc. At a starting cost of $500 and another $60 to $100 per month in service from AT&T (the iPhone’s exclusive provider), it’s not cheap.


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Wi-Fi in Public Places
by Staff |

Everyone loves the convenience and accessibility Wi-Fi has brought us. As is often the case with technology, it’s great—when it works. When a building owner or tenant discovers “dead spots” that are difficult or impossible to reach with a Wi-Fi signal, the challenge is not.


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Integrated Fire Protection

To protect today’s public spaces, integration of systems is more important than ever. And in light of recent catastrophic events, the pluses of integrated fire and life safety communications have become perfectly clear.


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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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