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. 

Brady BMP21-Plus label printer

Making labels on the job site can be a time-consuming task for integrated systems contractors, but it can pay big dividends in the long run.


In the last issue, I wrote about the practice of splicing two fibers with a fusion-­splicing machine. This month, I discuss some secrets that experienced splicers have learned—often the hard way.


Figure 1: Notching caused by semiconductor-controlled rectifier switching during commutation period

Maybe it is because they are rarely seen by the human eye or because the proliferation of surge protector strips makes everyone feel immune, but transients still exist and can wreak havoc with electrical equipment.

With cities and utilities worldwide upgrading to light-emitting diode (LED) lighting for streets and outdoor areas, owners and installers wonder when they 
will build in the controls for smart-city applications.

More on Systems

 
Redundancy Bears Repeating

System redundancy—for electrical, security, fire, alarm or communications systems—is one of those areas that cause many people to go blank.


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Bank Robbers Beware

Each September, Northfield, Minn., celebrates the foiling of the legendary James-Younger gang’s 1876 raid on the First National Bank.


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Financial Security Focuses on CCTV

Remember the V-8 advertisement where the guy slapped his head when he realized he had missed his chance to have his favorite drink? Having a “V-8 Moment” about security systems as the crooks escape a bank robbery is bad news all around.


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High-Tech Trumps Hijinks

As long as there have been banks, there have been bank robbers. But in the past decade, keeping up with criminal threats to the banking industry is becoming more high tech as security demands change.


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Behind the Scenes

There’s a well-known joke about money. You might see it as a sign posted in a bar or restaurant: “In God We Trust. Everybody else pays cash.” The first part of that phrase, as we all know, is printed on every U.S. greenback and stamped on every nickel, dime, quarter and penny.


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Tangent Cable Systems: Prior Experience Gives Tangent the Edge

In 2001, PFPC Inc., a leading provider of processing, technology and business solutions to the global investment industry and a member of the PNC Financial Services Group Inc., decided to expand its operations by adding a four-story, 116,000-square-foot worldwide headquarters building to its existi


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Quick Fiber Optic Terminations

One often needs a fast fiber optic termination.


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