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. 

McClure Electric, San Francisco, has been in business since 1966, but it wasn’t until the mid-1990s that it got involved in low-voltage work.


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

More on Systems

 
Pushing the Edges of E-Commerce with Project Collaboration
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Perhaps the most useful and exciting, yet technologically complex and challenging e-commerce application is the application service provider (ASP).

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How Many Fibers Are Enough?
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Our local newspaper reported that the local phone company had completed installing fiber optic cables between their central offices in the Boston area. That didn’t surprise me, but what did was the description of the cables they were installing. Each cable had 864 fibers in it!

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Permanent Link versus Basic Link: What Does It Mean for Copper?
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With the approval and publication of Telecommunications Industry Association (TIA)-TSB67 “Transmission Performance Specifications for Field Testing of Unshielded Twisted-Pair Cabling Systems” in October 1995, TIA launched the industry requirement for cabling system transmission performance and field

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System Solutions Start with Intercoms and Paging
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Bells and whistles don’t always sell low-voltage products. It’s the tried-and-true equipment that has become indispensable to commercial, industrial, and institutional customers. This equipment holds a market, and intercoms and paging systems are a perfect example. New they’re not.

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You Had to Be There - The First E-Contracting Conference
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“If you don’t feel confused and scared, you don’t know what’s happening.” With that quote from GE Chairman Jack Welch, one speaker got the rapt attention of a couple hundred contractors and e-commerce exhibitors who attended the first e-contracting conference, sponsored by Electrical Contractor maga

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Choosing Fiber for Premises Applications
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Up until a couple of years ago, one never thought about choosing the fiber in the fiber optic cable you bought. If you were buying cable for outside plant applications like telephone or CATV networks, you chose single-mode fiber.

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CCTV Integration with Optical Fiber
by Staff |
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As with so many other areas of technology, optical fiber is making serious inroads in the traditional copper and coax segments of the new-installation business for closed-circuit television (CCTV).

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