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. 

Renovating commercial buildings that require fire alarm system updates presents many challenges. First, the upgrade that is designed and installed must comply with NFPA 72, National Fire Alarm and Signaling Code. The challenge comes from determining which edition should be followed.

Ideal Networks LanTEK III certifier

Commercial datacom networks must be certified that they are correctly installed and meet industry performance standards. That makes certification testers a basic tool for installers, and manufacturers must plan ahead to have test instruments available as standards change.

It seems like every decade or so, elementary school educators employ a new way of teaching math. When parents try to help, they are greeted with “That’s not how we do it.” Yet the fundamental laws of mathematics haven’t changed since the time of the ancient Greek and Persian mathematicians.


Automation systems have served a variety of benefits to five-star hotels over the past decade. Recently, moderately priced hotels have adopted the technology.

More on Systems

 
Exploring Security Opportunities in the Lodging Industry

EVERY ELECTRICAL CONTRACTOR has at one time or another thought about ways to expand his or her business. Sometimes the day-to-day drill of operating a business keeps an electrical contractor from differentiating itself from the competition.


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Working in the Fast Lane

Clients benefit from firm’s sound and communications expertise “We’re fast-track artists,”said Larry Frontino, president, Direct A/V Inc., Hawthorne, Calif. “Some contractors are good at fast track while others are good at submitting an RFI [request for information] and waiting three months for the


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Getty Would Be Proud

CLIFF EDGES THE PORTION OF THE PACIFIC COAST HIGHWAY that threads its way along the ocean from Santa Monica to Malibu, Calif. Nestled in a canyon on that cliff sits the Getty Villa, a museum built in 1974 by oil tycoon J.


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Establishing Connections

Will plastic fibers challenge glass for networking? PLASTIC OPTICAL FIBERS (POF) have been around as long, if not longer, than glass fibers. We are all familiar with them, as they are used for consumer items such as signs, lamps and Christmas trees because they are inexpensive.


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Connectivity and the Changing World

Looking to the future and new applications THE WORLD OF OUTSIDE CONNECTIVITY IS CHANGING. This time, it is the relationship between copper and fiber-optic cable outside of our homes that is in flux.


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Wi-Fi Adoption Gains Momentum in China, VoIP Exports to Top 22 Million

THE ENTERPRISE MARKET FROM WI-FI technology in China is expected to increase fourfold over the next three years, with a 45 percent annual growth rate for the market as a whole, according to a new white paper sponsored by the Wi-Fi Alliance.


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Composite Cables

Immunity to EMI makes copper-fiber cable attractive We marveled at photos of the Titanic taken by the team headed by Dr. Robert Ballard, who located the shipwreck in 1986. But how many of us realized the photos were made possible by a special type of fiber optic cable?


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