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. 

The fountains and walkways of the healing garden are illuminated by LEDs.

In the healthcare-lighting arena, the improvements and increasing affordability of light-emitting diode (LED) products, along with advancements in lighting control technology, enable creative lighting designs that benefit patients and staff members.

In preparing to write my next article, I often review the topics I have covered in the past year or so, and I consider the issue’s theme.

As most of you know, the codes and standards for fire alarm and mass notification systems change on a three-year cycle. New technology and more refined occupant needs top the list of reasons for most changes.

The predictions have arrived! Analysts expect the first quarter of 2015 to show a rapid rise in commercial construction. Obviously, this is good news on almost all fronts.

More on Systems

 
Home, Sweet Home
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There is no shortage of organizations predicting what the construction market will look like in 2014. We have all experienced how poorly predictions may work out in some areas (e.g., the weather).

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Come Home To Possibilities
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After years of low compound annual growth rates (CAGRs) and limited innovation, the home security market is finally evolving with new and affordable security control products, and systems are becoming widely available, according to a November 2013 blog from Amdocs Inc., a software and service provid

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Eaton’s Power Xpert multipoint meter
Following the Power Flow
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Although submeters have long enabled building owners, multiresidential property managers and facility managers to better control energy consumption and costs, use of the technology has remained steady in about 10 to 15 percent of the commercial and multifamily residential building space.

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Gone In 60 Microseconds
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Last month, we started the Top 10 in the power quality phenomena category with the most common disturbance: the rms variation. In second place are usually transients, those fleeting waveform changes that are far too brief to be seen by the naked eye in lighting.

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Premises Cabling's Challengers
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My December column covered the development of copper cabling standards through the 1990s and the emergence of optical fiber as an alternative due to its higher bandwidth and distance capability.

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Sum Of Its Parts
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As a fire protection engineer who oversees the proposals to repair fire alarm systems, I often experience communication disconnects between the contractor, owner and authority having jurisdiction (AHJ). These disconnects manifest in the extent of changes each stakeholder requires.

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Forgotten But Not Gone: Abandoned Cable
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Electrical contractors (ECs) know that, first and foremost, the removal of abandoned cable is a National Electrical Code issue. But additional considerations make it even more crucial that unused, untagged cables be pulled out.


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