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 predictions have arrived! Analysts expect the first quarter of 2015 to show a rapid rise in commercial construction. Obviously, this is good news on almost all fronts.

One of my responsibilities over the years has been to field questions from our members and authorities having jurisdiction (AHJs) to help them find and understand code requirements. I have benefitted from the process as well.

A limited number of low-voltage contractors specialize in the installation of sprinkler systems power and controls. For them, it provides a regular source of revenue that most contractors have bypassed.

Fluke Networks DSX-5000 CableAnalyzer certification tester

A certification tester is the basic instrument for certifying that a building’s structured wiring meets industry standards. At one time, structured wiring referred to a facility’s communications network, but that has changed.

More on Systems

 
CCTP Technology Converges Security with IT
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A new closed circuit over twisted pair (CCTP) surveillance system developed by data communications distributor Anixter Inc., in conjunction with manufacturer partners Philips CSI, Belden Wire & Cable, and Middle Atlantic, effectively melds digital closed circuit (CCTV) technology with a local ar

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Installing Fire-Alarm Systems, Part II
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Last month, in part one of this article, we said the National Electrical Code (NEC) and the “National Fire Alarm Code” from the National Fire Protection Association (NFPA) were two of the most important resources needed to properly install a fire-alarm system.

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Market Convergence Means Opportunity
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While the general market outlook for unshielded twisted-pair (UTP) and coax cable is flat, certain segments will jump this year. “Overall market growth will be in the lower single-digit area,” said Bill Miller, director of marketing for Belden Electronics Division.

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Home Theater: Broadening Your View
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You’re familiar with the concept of the “smart house,” which is in the third generation of development. Their computerized electrical systems open garage doors, program lighting schemes and operate home-security systems. Some even turn on the coffee pot.

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Home Automation Gains Momentum
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From personal home theaters complete with surround-sound speakers, high-definition, large-screen projection and DVD recordings to total-system lighting packages, electrical contractors are profiting from rapid technological advances.

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MACs: A 'Contractor Paradise'
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When it comes to moves, adds and changes, most customers can’t or won’t do what it takes to cut costs. As a result, many VDV contractors are surviving tough times thanks primarily to MACs work.

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Aluminum Wire Terminations, Oversize Distribution Panels and More
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CODE CITATIONS Article 110 Requirements for Electrical Installations Article 215 Feeders Article 220 Branch Circuit, Feeder and Service Calculations Article 250 Grounding Article 400 Flexible Cords and Cables Article 404 Switches Article 430 Motors, Motor Circuits and Controllers Aluminum wire termi

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