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. 

When one of the coaches was asked before the “big game” what would be the key to his team’s success, he said, “executing the fundamentals.” While blocking, tackling, passing and catching may work for football, Ohm’s and Kirchhoff’s Laws are fundamental to understanding any power quality issue.

In this power-hungry world, people find it unacceptable to lose their connection to electricity. A backup generator can supply peace of mind, bringing home- or business-owners the emergency power they need.

An estimated 3 percent of every sales dollar in the United States is spent on solving power quality (PQ) problems, according to Christopher Forthaus, senior product manager, test division, Ideal Industries Inc., Sycamore, Ill.


Employers are responsible for providing a safe workplace. Reducing or eliminating the number and severity of musculoskeletal disorders (MSDs)—which affect muscles, nerves and tendons—and their associated costs is an important component in achieving that goal.


More on Systems

 
It's Just Math
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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.

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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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Polishing The Connector
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Now that we have covered the process of stripping the fiber and attaching the connector with an adhesive, the connector is ready to polish. The biggest problem with polishing a fiber optic connector is patience.

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The fountains and walkways of the healing garden are illuminated by LEDs.
Illuminating the Path to Recovery: Healthcare
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In the healthcare-lighting arena, the improvements and increasing affordability of light-emitting diode (LED) products, along with advancements in lighting control technology, enable creative lighting designs that benefit patients and staff members.

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