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. 

There is no doubt that video surveillance cameras are a critical, indispensable part of security at the customer’s protected premises. They can provide general security and assist with human resources functions when integrated with access control.

When you examine an end-user’s needs, do you really know what they expect from their security solution? They want plug-and-play, like popular consumer platforms based on the highly convenient and adaptable iOS and Android operating systems.


The title of this article is not meant to make you smile. 
Most Electrical Contractor readers work in the contracting business. But, on a daily basis, personnel and clients likely bombard you with requests to take on a new challenge and to do a better job at the work already being performed.


In October, I listed some of the significant changes proposed for the 2019 edition of the NFPA 72, National Fire Alarm and Signaling Code. This month, I cover more of the important proposed changes. Keep in mind that this is based on the public input stage.

More on Systems

 
Common Ground To Break Ground

The dark fiber providers that most people are familiar with are private companies that were started to offer fiber connectivity for a profit. Today, there is a major movement toward building fiber networks as a public-private partnership.


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Phasor diagram and equivalent sinewave plots
Not So Infrequent

When considering power quality disturbances or the quality of the electrical supply, phenomena such as rms variations (sags, swells and interruptions), harmonics, unbalance and flicker usually come to mind.


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Tracking All the Data: Data Center Infrastructure Management

Data center infrastructure management (DCIM) software enables data center operators to manage assets and changes, plan capacity, and monitor power, environment and energy usage.


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The Code Is A Tool

We all use tools and test equipment to perform our daily work. Sometimes, it’s a basic hand tool, such as a screwdriver. Sometimes, it’s more sophisticated.


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How Secure Is Your Security?

Are your low-voltage and security customers concerned over “hanging” security cameras on the enterprise network and opening it to potential vulnerabilities? Or are they looking at protecting other parts of their commercial facility that may be housing data and other privileged information?


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The Macrocosm Of Microgrids

TechRepublic.com reported in October 2014 that the United States has more electrical grid blackouts than any other developed nation and that, according to the U.S. Department of Energy (DOE), demand for electricity has outpaced transmission rates by 25 percent every year since 1982.



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A Digital World of Options

As projects become more complex, electrical contractors need high-tech management methods to ensure more efficient results. Here are just a few examples to help you get headed in the right direction. 5pm


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