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. 

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.

Over the last decade, the retail
security market has undergone shifts in both approach and technology.

Where are the growth areas? That’s a question many electrical contractors (ECs) ask themselves.

More on Systems

 
Branch Circuits, Grounding, Luminaires and More
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Article 210 Branch Circuits Article 220 Branch-Circuit, Feeder, and Service Calculations Article 230 Services Article 250 Grounding Article 404 Switches Article 410 Luminaires (Lighting Fixtures) Lampholders, and Lamps Article 445 Generators Article 702 Optional Standby Systems Volume I of the Fire

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Rising to IBS Installations' Challenges
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The arena of voice/data/video installations for electrical contractors can be both challenging and rewarding. The market is flowing into combining the traditional with the new in what is now being called integrated building systems (IBS) installations.

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Multimedia Cabling Demands Flexible, Creative Solutions
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Multimedia applications have just taken over networks. Long gone are the days when the most taxing task for any network was moving data files through itself.

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Ensuring Standards-Compliant Structured Wiring
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With the convergence of voice/data/video (VDV) applications within both the commercial and residential ectors, electrical contractors are now faced with becoming information technology professionals in addition to being electricians.

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Upholding Safety in Fiber Optic Installations
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Regarding safety in fiber optic installations, the first thing that comes to mind is usually eye damage from laser light in the fiber. People imagine a laser burning holes in metal or perhaps burning off warts.

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Is FTTD Just Another False Alarm?
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Well, we’ve heard it all before—fiber to the desktop (FTTD) is on its way to becoming the power source of choice. While unshielded twisted pair (UTP) cabling has been dominant, there is reason to think fiber will be a true competitor soon.

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Refrigerator Branch Circuits, Machine Tool Wiring, Foreign Piping and More
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CODE CITATIONS Article 110 Requirements for Electrical Installations Article 210 Branch Circuits Article 250 Grounding Article 310 Conductors for General Wiring Article 404 Switches Article 408 Switchboards and Panelboards Article 670 Industrial Machinery Branch circuit for refrigerator in dwelling

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