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. 

If you buy a new car in 2040, there’s a better than 50/50 chance it will be powered by electricity rather than gas.

Electronic access control is one of the most proprietary technologies (beside fire alarms) with the largest installed base of legacy equipment in the physical security industry.

Since 1999, the National Fire Alarm and Signaling Code has required survivability for certain circuits that need to work during a fire. In truth, the code has always required speaker circuits serving emergency voice/alarm communications systems to meet a performance requirement for survivability. 


Figure 1: Special manual building evacuation station. Photo courtesy of Jensen Hughes Inc.

Recently, a number of inquiries were made to our office regarding the topic of delaying or preventing the activation of fire alarm notification appliances.

More on Systems

 
Ideal Networks LanTEK III certifier
Cool Tools: Certification Testers

Commercial datacom networks must be certified that they are correctly installed and meet industry performance standards. That makes certification testers a basic tool for installers, and manufacturers must plan ahead to have test instruments available as standards change.


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Room Service: Hotels Gain Operational Efficiency Using Automation

Automation systems have served a variety of benefits to five-star hotels over the past decade. Recently, moderately priced hotels have adopted the technology.


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Web Exclusive
How Digital Tech is Changing the Building and Construction Industries

While next-gen technology has resulted in greater accessibility to popular media such as music and television, professionals from nearly every industry take advantage of the latest breakthroughs to complement their own work.


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Report Gauges State Level Grid Modernization Efforts

In recent years, the North Carolina Clean Energy Technology Center (CETC), a think tank based at North Carolina State University, has been releasing a quarterly report titled, "50 States of Solar," which tracks solar policymaking at the state level around the nation.


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New Math

It seems like every decade or so, elementary school educators employ a new way of teaching math. When parents try to help, they are greeted with “That’s not how we do it.” Yet the fundamental laws of mathematics haven’t changed since the time of the ancient Greek and Persian mathematicians.



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Blending Online and Classroom Training


In our technological world, we all know training is mandatory to successfully break into any new type of work. For more than 25 years, the Fiber Optics Association (FOA) has been involved with training courses for electricians who want to get involved in fiber optics and cabling.



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Submetering Goes Mainstream

Until recently, the energy standards referenced by state and municipal building codes in the United States have emphasized performance levels of products specified for lighting, air conditioning and other building systems without reference to the importance of maintaining those performance levels ov


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