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. 

Design/build means different things to different people. Regardless, you should know that it places more responsibility on your shoulders as the electrical professional. It means you need to stay abreast of the codes that affect your installations.


Figure 1: Typical magnitude of voltage sag as percent of nominal compiled of EPRI DPQ Project in 1990s

A customer recently called me about the information on his power quality monitor screen. He said about a dozen different events were showing up, but the lights had just blinked once. He wanted to know what all of the other nonsense was supposed to tell him.

Last month, I wrote about how fiber was being used to expand bandwidth for cellular systems, connecting cell towers to the phone network and antennas on the tower to the base electronics. That helps our phone coverage when we’re driving or walking outside.

Workflow-management tools are designed to orchestrate everyday business processes. For example, a contractor may implement a process for submitting, reviewing and approving expense reports.

More on Systems

 
Services beyond security

Safe And Sound In The Cloud
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Not a day passes without reference to cloud-based or hosted services. Consumers use cloud services every day with online banking, and now mobile payment is infiltrating retail and hospitality services.

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Conflict Resolution
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I’m sure all of you have run into an issue such as this when installing a fire alarm system: One authority having jurisdiction (AHJ) wants one thing, and another AHJ wants exactly the opposite. What do you do? You can’t make both happy.

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Come to Your Senses
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Building-system-automation implementation has paved the way for sensor technology to make buildings more efficient, healthier and more comfortable for occupants.

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Greenlee tools for copper VDV installations
Cool Tools: Copper Tool Kits
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For installing alarm, surveillance and building control system copper wiring, technicians use many of the same tools as they do for placing data and communications networks.

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A Productive Environment
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Employers are responsible for providing a safe workplace. Reducing or eliminating the number and severity of musculoskeletal disorders (MSDs)—which affect muscles, nerves and tendons—and their associated costs is an important component in achieving that goal.


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No More Wireless Fears
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Across the country, electrical contractors (ECs) are on a mission to increase their installation efficiencies, save labor costs and provide the most robust security to customers even in the toughest environments.

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Data Centers On Dark Fiber
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Data center connection is one of the most common uses for dark fiber, and it’s all due to growing data needs. You have probably seen graphs of the Internet’s growth and heard claims about how much data moves along it.

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