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. 

Industrial firms and contractors stand to benefit from emerging innovations in remote-monitoring technology.

When people send in data from a power quality monitor to be reviewed, some common questions include “Is my site normal?” and “Does this data look OK to operate my facility?” Such questions usually get the same ambiguous answer: “It depends.” The quality of electric power as supplied and how much is

When it comes to systems integration, intrusion detectors and sensors are the ties that bind.

As I have described in the previous few columns, splicing fibers is fairly easy. If the installer cleans and cleaves the fibers properly, the machine does the rest. However, the installer’s job is not over at that point.


More on Systems

 
Have a Backup Plan

In the past, blackouts have led us to focus on preventing systemwide single component failures. But August’s blackout increased nationwide awareness for the need for backup power systems.


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Money in the Bank

Bank security systems are now so sophisticated that it is virtually impossible to use a hankie without being in full view of a surveillance camera. Uniformed guards making their presence obvious are as much an ornament as a deterrent to crime.


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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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Derating Conductors in a Raceway and More

CODE CITATIONS Article 220 Branch-Circuit, Feeder and Service Calculations Article 230 Services Article 240 Overcurrent Protection Article 310 Conductors for General Wiring Article 312 Cabinets, Cutout Boxes and Meter Socket Enclosures Article 404 Switches Article 410 Luminaires (Lighting Fixtures)


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TIA and You

The Telecommunications Industry Association (TIA) is an industry organization with paying members from the communications/telecom industry. They develop minimal performance standards for cabling and related hardware and installation standards for the users/designers.


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Wireless: No Wonder

Russ Lambert has trained as a lawyer (with a legal degree), served as a project manager for an electrical contractor (in this case, Fischbach & Moore) and worked at a high level for a major electrical distributor (specifically, as director of e-Commerce for WESCO Distribution during the dot-com


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Wireless LANs

From a systems standpoint, wireless has been the talk of the town. It seems as if everyone was promoting this technology as one that would change the way we all view networking. Wireless has finally taken the great leap from industry projection chatter to commonplace buzzword.


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