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. 

If you are like most people in the fire alarm industry, you struggle with what is and is not allowed for transmitting fire alarm signals to a supervising station. NFPA 72 has changed a lot in the last few code cycles, so let’s clarify some of those changes.


One of the most common problems I find when reviewing installed fire alarm designs is the misapplication of smoke detectors.

Sturgeon Electric Co. Inc. in Henderson, Colo., has been in business since 1912. It expanded into low-voltage work in 1984, when private bank exchange companies asked if it would be interested in performing their installations.


Although security has been necessary to protect people and property for decades, it is now considered part of the holistic experience with factors such as connectivity, convenience and integration with other systems.


More on Systems

 
Uninvited Guests

Network vulnerability problems often fall on the shoulders of information technology staff members and systems administrators.


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The Perfect Connection

A few years ago, a cohort and I were demonstrating fiber optic terminations in our booth at the NECA show. He came back from visiting another booth with a large twist-on wire connector, commonly called a “Wire-Nut,” the Ideal trademark for these devices.


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PV Economics

Performing a preliminary design for a photovoltaic (PV) system is the first step in deciding how to effectively incorporate PV technology into a new or existing building.


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On the Horizon

VoWiFi-an abbreviation for voice over wireless fidelity-is another alphabet-soup name to remember. VoWiFi combines Wi-Fi's wireless advantages with voice over Internet protocol (VoIP).


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The Glitches Behind the Service

The debate Between wireless and wired networks continues, but the dialogue is changing. Though wireless has been an overly hyped technology, it is a significant service option to both consumers and businesses.


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Fiber Optics Jargon

Fiber optics, like many of today's technologies, has developed its own language, created from technical terms specific to fiber optic technology. Sometimes the fiber optic community cannot-or will not-standardize, and we mean beyond choosing a standard connector.


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The Loss Test

Every fiber in an installed fiber optic cable needs testing for loss. The insertion loss test is the standard test required by every network and cabling standard around the world. Superficially, loss testing is easy.


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