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 quote “The more I learn, the more I realize how much I don’t know,” is popularly attributed to Albert Einstein.

Commercial building energy codes impose design standards for nonresidential buildings’ energy efficiency. Many states have implemented an energy code to regulate building design.


For many of us, these are technologically challenging times. Just when I think I have mastered the latest smartphone, it changes. Prepare yourself, because, just like mobile devices, the codes and standards are morphing in ways you might not expect.


When manufacturers are asked what is the biggest problem with installing of fiber optic components and systems, they invariably say “testing.” Practically everything they do depends on testing. During development, engineering and manufacturing in their labs, they test product performance.

More on Systems

 
Use Your Metal

The failure of a service-entrance bus duct supplying power to a major grocery store data center and corporate facility created a dilemma for store management.


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Ironing out the Kinks

When wireless sensors and detectors came on the market decades ago, the devices were known more for missing signals than capturing alarm activity. They were used in a “patch” type of approach, applied when hard-wired devices were impossible.


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Essential to the Integrated Environment

Sensors and detectors have upped the ante with intelligent features and supervision, making them essential to an integrated and automated building environment.


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More than 'Just in Time'

'Just in time' used to be the battle cry in security product manufacturing and distribution. Now, it is more than just in time-it is all about arming the contractor with the information they need to boost sales and present the end-user with a product portfolio adeptly suited to the application.


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Catch a Wave

Many fiber optic specifications and tests refer to wavelength because most parameters have some wavelength dependency. Attenuation, for example, is caused by absorption and scattering. Absorption occurs at certain wavelengths and scattering gets less significant at longer wavelengths.


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E-J Electric Builds Two 500 MW Power Plants

Across the East River from Manhattan, construction workers are erecting two separate power plants intended to help solve the city's power problems. One contractor has been constructing the electrical systems for the NYPA 500 MW and the Astoria Energy 500 MW power plants in Astoria, Queens.


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Simplifying the Process

Virtual private LAN service (VPLS) connects local area networks (LANs) over the Internet and makes each private LAN act like a single Ethernet LAN. This is a seamless way to keep remote and branch locations connected-something practical in today's global marketplace.


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