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. 

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. 


Figure 1: Special manual building evacuation station. Photo courtesy of Jensen Hughes Inc.

Recently, a number of inquiries were made to our office regarding the topic of delaying or preventing the activation of fire alarm notification appliances.

As data about home energy use expands, the next big thing could come from new products and services companies create to analyze and use that data.

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Figure 1: Special manual building evacuation station. Photo courtesy of Jensen Hughes Inc.
Purposefully Delayed Fire Alarm Notification

Recently, a number of inquiries were made to our office regarding the topic of delaying or preventing the activation of fire alarm notification appliances.


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Market For Smart Home Data Analytics Has Potential For Growth

As data about home energy use expands, the next big thing could come from new products and services companies create to analyze and use that data.


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Misinformation and Misconceptions of Codes That Affect Fire Alarm System Installations

It never ceases to amaze me just how much people in our industry have been either misled or misinformed concerning technical and code information.


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Faster, Cheaper And Easier

My introduction to fiber optics was a guided tour of the Bell Labs section where they were developing the technology being used for the first commercial networks. What I remember most was the office of Jack Cook, the engineer developing the Biconic connector.


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Hitting It Out Of The Park

SunTrust Park is home to Major League Baseball’s Atlanta Braves. With more than 1,350 Wi-Fi access points, 30 LED displays and a 64-by-121-foot centerfield video board, the owners tout it as one of the most technologically advanced in the league.



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Parts, Smarts And Labor

Certified Multi-Media Solutions, Farmingdale, N.Y., is a low-voltage contractor that has been in business since 2005.


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Who Moved Your Cheese? The Evolving World Of Testing

Throughout my career, I have found contractors that attempt to perform fire alarm system installations by the seat of their pants. A contractor typically has grown up in the industry with some valuable training resources.


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