Electrical Contractor Magazine

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. 

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. 


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.

Electrical professionals understand that the purpose of a smoke detection and alarm system is generally to provide life safety for building occupants. They also understand that the goal of the fire alarm system is to provide occupants with as much escape time as possible.

Economic improvement and rising demand for energy efficiency is boosting the market for structured cabling in building automation systems (BASs). Vendors and market analysts are preparing for large-scale growth.

Electrical Contractor Magazine

More on Systems

 
Missed Connections
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In the early days of fiber optics, the biggest complaint was about the difficulty of installing connectors. You had to mix epoxy and inject it into the connector. Then you had to let the adhesive cure overnight or use a bulky curing oven.

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Proceed With Caution
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While the economy takes its time turning around, each day I see more fire alarm system upgrades to replace obsolete equipment. On almost every project, I find the owner promoting a common thread.

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Economic or Not?
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There are many reasons for motor failures, such as overloading, bearing failures, rotor failures, worn shafts, and short circuits or ground faults within the motor windings, and contaminants that may enter the motor, causing short circuits or overloading.

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Editors' Pick
Put Your Backup Into It: Backup Generators
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The June 29, 2012, derecho storm, which traveled from the Midwest to the Mid-Atlantic, knocked out power to almost 3.5 million customers, some for up to a week. Many people scurried out to purchase generators.

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The Right Tools for You
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I’m sure you’ve heard that you need the right tool for the job, but have you ever considered that you might need the right tool for you? Nothing affects how easily a job can be done as much as having the correct tools and knowing how to use them properly.

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Northeast Grid Upgrade Clears a Major Hurdle
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The need to upgrade the nation’s aging grid infrastructure has become more apparent. Fortunately, utilities and public officials are up to the task.

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Having the Right Tools
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The tools and equipment necessary to install and test a fire alarm system have changed over the years, and until a fire official asks to perform a particular test, many contractors may be unaware that they need a new meter or specialized piece of equipment.

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