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. 

Data center connection is one of the most common uses for dark fiber, and it’s all due to growing data needs. You have probably seen graphs of the Internet’s growth and heard claims about how much data moves along it.

When one of the coaches was asked before the “big game” what would be the key to his team’s success, he said, “executing the fundamentals.” While blocking, tackling, passing and catching may work for football, Ohm’s and Kirchhoff’s Laws are fundamental to understanding any power quality issue.

In this power-hungry world, people find it unacceptable to lose their connection to electricity. A backup generator can supply peace of mind, bringing home- or business-owners the emergency power they need.

An estimated 3 percent of every sales dollar in the United States is spent on solving power quality (PQ) problems, according to Christopher Forthaus, senior product manager, test division, Ideal Industries Inc., Sycamore, Ill.


Electrical Contractor Magazine

More on Systems

 
Rare or Well Done?
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In 2012, the National Fire Protection Association adopted NFPA 3, Recommended Practice on Commissioning and Integrated Testing of Fire and Life Safety Systems. Since then, it has been split into two separate documents.

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Optical Awareness
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Optical local area networks (OLANs) have been the subject of these columns for several months, and before that I discussed networks. This month’s column ties together some loose ends to help you understand the OLAN concept better.

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Powering trends

Power For A Rainy Day
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Backup power is typically required for emergency and egress lighting. Emergency power could also be used during evacuation to power systems that help keep building occupants and rescue personnel safe.

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Trends and their drivers

Stay In The Light
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Effective lighting is an important part of any security strategy. Even if lighting can’t guarantee safety or prevent disasters, it is a valuable tool that can increase safety in indoor and outdoor applications when used wisely. 


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Same Rules Apply
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Once a year, I focus on the latest trends and changes in power-quality monitors, standards and mitigation equipment. This article initially focused on the latter, but after researching several dozen of the newer products on the market, one thing became apparent.

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Just Say 'O'
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Optical local area networks (OLAN) will cause you to rethink practically everything you have learned about LANs and LAN cabling. Of course, any major change in technology like this causes FUD (fear, uncertainty and doubt), just like voice-over Internet protocol (VoIP) and Wi-Fi have already. 


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So Much To See, So Little Time
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Sometimes, a power quality investigation can lead you to see things that you aren’t really looking for and might be a distraction from what the customer wants you to do.

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