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. 

Most in the construction industry should be familiar with building information modeling (BIM).

In North Carolina, on July 27, PCL Civil Constructors working on the Herbert C. Bonner Bridge project, which spans 2.8 miles and is the only connection between Hatteras Island and Bodie Island, severed a three-phase, 115-kilovolt underground transmission line.

Capacitors that blew up from a power supply failure

In my 40-plus years in the industry, I have analyzed customers’ power quality monitor data files and heard their stories about hundreds of things that have happened in their facilities or homes: some mysterious, some catastrophic, some even comical.

According to an August 3 report from the U.S. Energy Information Administration (EIA), as of July 2017, 30 states plus the District of Columbia have adopted energy efficiency policies. These policies range from mandated requirements to voluntary goals, as well as pilot programs.

More on Systems

 
Leveraging Your Network

Remember the early days of networking and Ethernet cabling? Many of us stood in awe in the 1980s as we struggled to wrap our minds around the notion of personal computers talking to each other and sharing files at a staggering rate of 10 megabits per second.


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Code Change Brings Twist to Military Facility Fire Alarms

If you have not purchased and read the 2007 edition of the National Fire Alarm Code, it is possible your next fire alarm system installation in a military or government facility will hold a surprise.


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Grounding Devices, Wiring and Grounding a Transformer and More

Article 200—Use and Identification of Grounded Conductors; Article 220—Branch-Circuit, Feeder and Service Calculations; Article 240—Overcurrent Protection; Article 310—Conductors for General Wiring; Article 314—Outlet, Device, Pull and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosure


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Impact of UL 864 - Ninth Addition

New UL standard outdates FACUs many consider current Most contractors know the Underwriters Laboratories Inc. (UL). They see the stamp, label or tag on just about everything electrical. UL operates as an independent, not-for-profit, product-safety testing and certification organization.


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A World of Opportunity

What becoming an IBS contractor can mean for you


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True Wireless Applications

Using RF energy to actually power something Countless tech-oriented companies concentrate on solutions for new and emerging technologies.


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Gone Swimming

Equipotential bonding adjustments for pools in the 2008 NEC  


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