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. 

I am always amused when I hear, “No one uses heat-cured epoxy connectors anymore.” In fact, about 95 percent of all connectors, including every factory-made patchcord, uses heat-cured epoxy for its ease of use, low cost and high reliability.

NFPA 70B, Recommended Practice for Electrical Equipment Maintenance, has championed the importance of an electrical preventative maintenance (EPM) program for years.

Residential home fire alarm protection methods can be broken down into two distinct applications: stand-alone detection devices, known as smoke alarms or carbon monoxide (CO) alarms, and combination fire alarm and detection systems that employ smoke detectors and CO detectors connected to a resident

When we install fire protection
in a building, we are focused on active protection systems such as fire alarms, fire sprinklers, clean agents or smoke control.

More on Systems

 
Fiber Is Tougher Than You Think
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Fiber optic cable has typically been categorized as fragile,like glass, which the actual fiber is, of course. But unlike drinking glasses that break when dropped or windows that lose every battle with a kid's baseball, glass optical fiber is incredibly strong and flexible.

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Generators and GFCI, Pool Wiring, Inspection Questions and More
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CODE CITATIONS Article 225 Feeders Article 230 Services Article 250 Grounding Article 408 Switchboards and Panelboards Article 445 Generators Article 680 Swimming Pools, Fountains and Similar Installation Systems NFPA 20 1999 Standard for the Installation of Stationary Pumps for Fire Protection Grou

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Intelligibility--What Did You Say?
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How many times have you been to a large corporate complex and struggled to hear an announcement on the public address system? Now consider the same sound system and the dangers when the listener is instructed in emergency evacuation procedures.

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Smarter Distributed Controls
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Imagine being on summer vacation in Australia while it's mid-winter back home in Boston. Your neighbor has kindly agreed to feed your exotic fish while you're away for three weeks, and you know she'll be visiting every morning and evening.

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Put the Web to Use
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As the Internet progressed from "new" to standard operating procedure, the electrical and VDV construction industry has embraced the Web. Few may be buying online, but many industry people use it. Perhaps you might save time by using the Web to better effect.

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Highlights on New Category 6 Standard
by Staff |
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The Telecommunications Industry Association (TIA) has published its long-awaited standard for Category 6 data cabling and components. Officially known as ANSI/TIA/EIA-568-B.2-1, the standard is an addendum to the TIA/EIA-568-B standard for commercial building telecommunications cabling.

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Fiber's Biggest Enemy
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Your mother was right--dirt is bad. Cleanliness can be next to impossible on the jobsite, but when it comes to fiber optics, it's mandatory. The problem is simply that fiber itself is small, about the size of a human hair.

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