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. 

Shopping for products today involves a world of possibilities. There are online resources and distributors with brick-and-mortar stores and mobile apps to speed up the process. Price is fairly standard, barring volume or project discounts.


An arc fault circuit interrupter (AFCI) is an advanced circuit breaker that, as a way to reduce electrical fire threats, breaks the circuit when it detects a dangerous electric arc in the circuit that it protects.

What we have been installing in buildings and data centers for years that could be a lethal element for a terrorist attack?

In the changing dynamic of energy resources, efficiency is playing a vital role. Even if political support for efficiency diminishes, its importance to the future of energy remains.

More on Systems

 
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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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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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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Residential-Specific LEED

Although the construction industry has been dealing with green buildings and sustainable design for quite some time, there is a new entry into this residential market arena: LEED for Homes (LEED-H).


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