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. 

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.


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.

More on Systems

 
The Converged World Of Automation and Communication

Don’t blink! If you do, you may miss some of the rapidly developing changes occurring in the technology sector.



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At The Center Of Data Centers

Last month, we discussed how long-distance dark fiber is used to connect data centers. Everywhere you look, you read about new data centers being built by Google or Facebook or Amazon or some other one with a strange, unpronounceable name.


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Connect And Power Up

Power over Ethernet (PoE) is a way to safely transmit electrical power and data over standard structured cabling to remote devices where there may not be a power outlet or where it is too expensive to install a new outlet or bring in additional electrical service.



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Automation for the People

While the home-automation market is still in a bit of a Wild West state, the combined factors of industry consolidation and consumers’ growing interest in interoperability are forcing some order into the chaos of available products.


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Blink And You'll Miss It

The blinks and flickers referred to here can best be described as “voltage fluctuations on electric power systems [that] sometimes give rise to noticeable illumination changes from lighting equipment.” The Institute of Electrical and Electronics Engineers (IEEE) standard that covers this is about to


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LED lighting can be powered and controlled through a PoE system in a data center application.
The Power of PoE

Power over Ethernet (PoE) is any of several standardized or ad-hoc systems that pass electrical power along with data on Ethernet cabling.


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Communication Breakdown

The 2010 edition of NFPA 72, National Fire Alarm and Signaling Code, established a new and separate chapter for emergency communication systems (ECS), which continues to evolve.


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