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. 

State by state, communities, utilities and businesses in the United States are testing, planning and building systems aimed at modernizing the nation’s grid. In the past two years, the process has accelerated.

According to a recent report by Platts, the combined power rating of installed electricity storage in the U.S. grew 181.5 megawatts (MW) over the past year to a new high of 585.5 MW at the end of the second quarter of 2017, based on reports filed with the U.S. Federal Energy Regulatory Commission.

Attacks on the general public across the globe continue to mount, but they are not solely terrorist based. Low-tech improvised assaults and attacks are increasingly carried out by individuals or small groups.

The solar eclipse event on August 21 received a lot of news coverage before, during and after the moon passed in front of the sun. But only a sliver of that media attention was focused on the issue of its impact on the nation's electric grid.

More on Systems

 
RFID-Coming and Growing

Radio frequency identification (RFID) is used to track, identify and record people and objects. First introduced during the 1970s, the technology has evolved as new uses are discovered. But it was Wal-Mart's announcement in summer 2003 that pushed RFID into the spotlight.


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Put Communications Technology to Plan

The swift pace of integration is nowhere more profound than in the communications and information technology (IT) sectors. Access-control systems talk to closed-circuit television surveillance and door hardware for instant egress.


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Terminating Flexible Cords, Recessed Outlet Boxes and More

Flexible cord terminations Q: May a properly sized flexible cord with 15-ampere male attachment plugs on both ends be used to supply an optional standby generator for a small business? The cord is intended to plug into a receptacle on the generator and a receptacle on the outside of the building.


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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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