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. 

Plug loads, according to a pilot study performed by New York-based green technology company ThinkEco Inc., make up the fastest growing end-use of electricity in the commercial sector. As the amount of electricity used by plug loads grows, it becomes increasingly important to manage it.

In attempting to explain to a colleague why we care about negative sequence components, I tried to follow the guidance that Bob Lawrie, another member of the NFPA 70B Electrical Equipment Maintenance committee, offered to me many years ago: never use a formula in an article.

Another year has passed, and we have nothing revolutionary to report about fiber optic technology—no instant-on connectors, dirt-cheap lasers or simple solutions to installation problems.

When a potential client calls on you to provide a fire alarm system, do you assume the design responsibility? If so, what resources do you use?


More on Systems

 
Filling Installation Needs
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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.

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Fluke Networks DSX-5000 CableAnalyzer certification tester
Cool Tools: Certification Testers
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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.

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On The Lookout: Retail Security

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

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

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Strong Communication, Competitive Bidding
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Commercial Controls Corp., Valencia, Calif., has about 30 employees who work out of three locations in California and one in Nevada. Fred Scripture, who continues to be the owner and president but is no longer as active in the day-to-day operations, started the company in 1993.


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Leading With BIM
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The use of Building Information Modeling (BIM) in medium-to-large construction projects is becoming more common. Yet, much of the design software still favors contractors other than electrical.

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Lutron’s Maestro Wireless technology also is geared toward both the residential and commercial markets.
Decoupling Wire and Power
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While wire and electric power delivery will remain a constant, the marriage between the two is being redefined. Wireless lighting and energy control are expanding from homes to office, healthcare, institutional and industrial settings.

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