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. 

Plug loads, according to a pilot study performed by New York-based green technology company ThinkEco Inc., make up the fastest growing end-use of electricity in the commercial sector. As the amount of electricity used by plug loads grows, it becomes increasingly important to manage it.

In attempting to explain to a colleague why we care about negative sequence components, I tried to follow the guidance that Bob Lawrie, another member of the NFPA 70B Electrical Equipment Maintenance committee, offered to me many years ago: never use a formula in an article.

Another year has passed, and we have nothing revolutionary to report about fiber optic technology—no instant-on connectors, dirt-cheap lasers or simple solutions to installation problems.

When a potential client calls on you to provide a fire alarm system, do you assume the design responsibility? If so, what resources do you use?


More on Systems

 
Saturn's Orbit
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Founded in 1963, San Diego-based Saturn Electric started out exclusively as a full-service electrical contractor. Ron Dudek purchased the company in 1977, and 20 years later, Ron’s son, Tim, joined the firm. In 2005, Tim became president.

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Rare or Well Done?
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In 2012, the National Fire Protection Association adopted NFPA 3, Recommended Practice on Commissioning and Integrated Testing of Fire and Life Safety Systems. Since then, it has been split into two separate documents.

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Trends and their drivers

Stay In The Light
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Effective lighting is an important part of any security strategy. Even if lighting can’t guarantee safety or prevent disasters, it is a valuable tool that can increase safety in indoor and outdoor applications when used wisely. 


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Same Rules Apply
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Once a year, I focus on the latest trends and changes in power-quality monitors, standards and mitigation equipment. This article initially focused on the latter, but after researching several dozen of the newer products on the market, one thing became apparent.

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Optical Awareness
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Optical local area networks (OLANs) have been the subject of these columns for several months, and before that I discussed networks. This month’s column ties together some loose ends to help you understand the OLAN concept better.

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Powering trends

Power For A Rainy Day
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Backup power is typically required for emergency and egress lighting. Emergency power could also be used during evacuation to power systems that help keep building occupants and rescue personnel safe.

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Just Say 'O'
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Optical local area networks (OLAN) will cause you to rethink practically everything you have learned about LANs and LAN cabling. Of course, any major change in technology like this causes FUD (fear, uncertainty and doubt), just like voice-over Internet protocol (VoIP) and Wi-Fi have already. 


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