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. 

Figure 1: Power quality phenomena over the voltage range

The lights blinked for an instant, or a running appliance made a sound like the motor was slowing down. No digital clocks were blinking, no computers restarted, no production lines stopped.

Security systems solutions are designed to keep customers and their facilities safe, detect intruders, and obtain visual evidence and identification.

Many contractors have said to me, “The fire alarm system is supervised, and I have a green light on the fire alarm control unit.

A new piece of software developed by students will make streetlight outage detection a lot easier and faster for the City of Las Vegas.

More on Systems

 
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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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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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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Remote Monitors

While wandering the aisles at a trade show for consumer electronics, I was surprised to find several vendors selling fiber optic cables.


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