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

 
What and Why? Testing Gigabit Ethernet
by Staff |
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Last month we looked at the state of Gigabit Ethernet today and recognized that it will be confined to backbone networks and server connections for the reasonably foreseeable future, simply because most desktops can’t use such speed.

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Category 6 Cabling - Standard or Not?
by Staff |
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I guess the honest answer to the above is, “We’re working on it.” Most manufacturers have products (cable, jacks, patch cords, and test equipment) out in the marketplace promoted in one fashion or another as Category 6 compliant.

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High-tech Robots Deploy Fiber Optic Cables in Sewer Systems
by Staff |
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CityNet Telecommunications Inc. has launched the first commercial deployment of a fiber optic network through a sewer system. The first-of-a-kind deployment was conducted in the city of Albuquerque, N.M.

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Lighting Controls: Profiting from Mood Lighting and Dimming
by Staff |
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True story: A few weeks ago I went to a major retail store to buy a new television. The model I liked was on sale and had all the features I wanted. Or so I thought.

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E-Lighting - Too Much of a Good Thing?
by Staff |
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The Internet is a wonderful creation. But, is it too much? It permits you to find all sorts of interesting information at no cost.

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Integrating Audio with Other Systems
by Staff |
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Several times each week, someone calls, saying, “HELP!

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Is Copper Cheaper than Fiber?
by Staff |
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Fiber optics is always expected to cost much more than copper cabling. Whatever you look at—cable, terminations, or networking electronics—fiber costs more. So isn’t it obvious that fiber networks are more expensive than copper? Maybe not! There is more to consider before deciding this.

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