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. 

It never ceases to amaze me just how much people in our industry have been either misled or misinformed concerning technical and code information.

My introduction to fiber optics was a guided tour of the Bell Labs section where they were developing the technology being used for the first commercial networks. What I remember most was the office of Jack Cook, the engineer developing the Biconic connector.

SunTrust Park is home to Major League Baseball’s Atlanta Braves. With more than 1,350 Wi-Fi access points, 30 LED displays and a 64-by-121-foot centerfield video board, the owners tout it as one of the most technologically advanced in the league.


I often receive data files recorded from power quality monitors to analyze the reason a piece of equipment experienced an event. This analysis is followed by determining the cause and who is to blame.

More on Systems

 
Industrial Automation

From 2001 to 2003, the United States saw the worst industrial decline since the Depression with customer capacity reduction, including outsourcing and consolidation.


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The Buzz on ZigBee

ZigBee-it sounds like a new toy or Disney character, but it is actually a technology that is helping to, once again, reshape wireless networking. ZigBee is a protocol known as the IEEE 802.15.4 Standard.


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Integration-In a Not-So-Perfect World

It's really happening. Integration is starting to take hold in every vertical market and business operation. It has been a long, tough road.


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PV System Components

The most focused on and visible part of a photovoltaic (PV) installation is the technology used. PV technology usually takes the form of rigid PV panels mounted on a building's roof, which represents another independent building system that needs to be installed.


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Straight Talk About 'Trusted Computing' (TC)

“Trusted computing” (TC) is another modern commercial computer tool. Just what does that mean? The dictionary presented definitions such as “have faith in,” “rely on,” “have confidence in” and “count on.” The concept and need for “trusted” computing started with our own federal government.


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Communication System Requirements

Contractors and installers generally are concerned with cabling, not networks. Installing and testing cabling to standards such as TIA-568 is the heart of their voice/data/video work. Cabling standards writers are primarily concerned with performance and interoperability.


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Ensuring Earth Connection

In the 2002 and previous editions of the National Electrical Code, the metal frame of a building or structure was required to be used as a grounding electrode when the metal of the building or structure was effectively grounded.


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