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. 

When I arrived recently at a residential construction site to build a covered porch, the homeowner was busy cutting a tree away from the power lines to the house with a chain saw.

Greenlee offers a variety of fishing reach poles and telescoping fish poles.

The routing of wiring for voice/data/video, security, alarm and control systems is done differently from electrical cable and, in most cases, is completed with different tools.


Last month, I discussed the growing pains I have seen in fiber optics. Some of the problems have been issues with incompetent subcontractors, but poor network design seems to cause just as many issues. Why is that?


Integrated systems solutions aren’t reserved solely for surveillance, intrusion detection and fire-signaling technology. Audio is the bright star on the horizon, especially as it begins to be leveraged more fully on the network.

More on Systems

 
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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Don't Cut the Landline

It is no secret that voice over Internet protocol (VoIP) has had problems regarding emergency service. Users’ exact locations are not always known, causing 911 calls to be transferred to the incorrect dispatcher. Many users were unaware that when they dialed 911, it would not always work.


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Seeing (and Hearing) Is Believing

Over the last few years, there has been confusion over which laws or codes apply to the audible and visible notification appliances.


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Ghost Busters

The optical time domain reflectometer (OTDR) has been an important tool for fiber optic testing and troubleshooting since its invention 25 years ago. We have discussed this several times in this column and in other Electrical Contractor articles, so I hope you are already familiar with them.


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