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. 

We are all aware fiber optics is the backbone of communications networks such as telecom, the internet, local area networks, cable television and more. It’s also the backbone of the electrical grid.

Over the past two years, the technical committee responsible for IEEE 1547, Standard for Interconnecting Distributed Resources with Electric Power Systems, has added a section on power quality (PQ), including the parameters, indexes and limits on those for distributed energy resources (DERs) connect

Mobile applications, an increasingly fluid workforce and improvements in product integration are changing the landscape of mass notification systems (MNSs) and emergency communications. The technology is more responsive and better directed in messaging to the masses.
 Keeping a close eye


On July 12, hundreds of companies and organizations will participate in the Day of Action for Net Neutrality. The event has the support of internet giants such as Amazon and Netflix as well as civil organizations like the American Civil Liberties Union (ACLU).

More on Systems

 
Building Energy Management Systems Continue To Evolve

It has become an axiom of the sustainable energy movement that various trends feed the market for new and innovative technology. For example, the push for greater energy efficiency has fueled the market for building energy management systems (BEMS).


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U.S. Energy Storage Market on a Path of Expansion

As storage technology plays a widening role in an energy culture that has become increasingly reliant on renewables and efficiency, the market for the technology has grown in equal measure.


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The Growing Implications of Microgrids

According to a new report from the National Electrical Manufacturing Assocition (NEMA), microgrids will soon be considered an integral component of the nation's power delivery system.


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California Lawmakers Raise The Energy-Storage Standard


As renewable power increases its market share, energy storage assumes a larger role. Recognizing the importance of government benchmarks, California lawmakers have taken steps to raise the state’s energy-storage standard.



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Google Fiber Hits Pause—What Does It Mean?

On October 25, Google announced it would "pause" development of Google Fiber. In addition, the division’s CEO, Craig Barratt, resigned, and the division was rumored to be laying off about 9 percent of its staff.


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J.M. Electrical Completes Middle-School Control-System Project


J.M. Electrical Co., a Lynnfield, Mass., contractor with a specialty in advanced automation building system installations, recently completed project operations at the 85,000-square-foot Hanscom Air Force Base Middle School in Bedford, Mass., which holds 312 students.


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Methods of Detection: Smoke And Heat Detectors

Recently, I encountered questions regarding the nonactuation of smoke detectors in an atmosphere the occupants reported as “smoky.” The discussions revealed a general misunderstanding of how a fuel-dependent fire grows, how smoke and heat detectors function, and how a designer should apply them to a


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