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. 

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).

As energy technology continues to evolve, residential customers are becoming more content with the service they receive from electric utilities. The 2017 Electric Utility Residential Customer Satisfaction Study, released by J.D.

For years, there has been concern about the waking ability of fire alarm audible notification appliances. In general, they have gone through numerous changes since the 1980s. Back then, it was common to use bells to signal an alarm.

More on Systems

 
Test Mechanics

Having the right tools makes any job easier. As any electrician entering the field learns, he or she must have the right tools to perform electrical work efficiently. This same rule applies to installing a fire alarm system.


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New Horizons in Cabling and Integrated Building Systems

It’s the information transport systems or cabling that makes data, voice and video come to life. Throw it in and go is not an option. Everything must be planned and tailored to the application and that goes for the type of wire and cable deployed.


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On the Horizon

Rule number one in any voice over Internet protocol (VoIP) installation is to make sure the network is capable of handling the technology. That may sound obvious, but it is, surprisingly, sometimes overlooked.


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Just Hit the Button

Relax. Fire alarm panels are intuitive, multifunctional labor saving devices that allow custom programming and the ability to tailor the equipment to the facility. Electrical contractors can just hit the button with the advanced options fire alarm controls offer.


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Correlation Is Key

The problem always cited with optical time domain reflectometer (OTDR) measurements, especially on multimode premises cable plants, is they generally do not agree with insertion loss measurements made with a light source and power meter.


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Pitfalls to Avoid

In most fire alarm system installations, electrical contractors simply follow the specifications and drawings developed by an engineer.


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Planning Ahead

Recently, we received a phone call from a fiber optic instructor we know asking an unusual question. Can you run single-mode fiber to the desktop? Of course, we told him, why not?


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