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. 

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?


Never before in the electronic security industry has change been so profound. As hardware and boxes moved onto the network, they have morphed into intelligent, connected products.

More on Systems

 
Up the Learning Curve, Together: Distributors and Contractors
by Staff |
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E-commerce isn’t dead, it’s gone underground. Here’s a look at how some larger electrical distributors are working with contractors—far from the glare of the spotlight.

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Fire Alarms: Not Just Another Low-Voltage Installation
by Staff |
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For some, installing fire alarms is a lucrative sideline. For many, it is a full-time pursuit.

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Designing Fiber Optic Connectors
by Staff |
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In last month’s Electrical Contractor, we wrote about how to improve your fiber optic termination techniques. Fiber optic connector manufacturers work hard to make terminations easier and less expensive, and with higher performance capabilities.

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10 Gigabit Ethernet Is on the Horizon
by Staff |
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Experts expect the 10 Gigabitt Ethernet (10Gig-E) standard to be completed by March 2002. One of the first questions to ask is, why should we need 10Gig-E when 1Gig-E was only standardized a couple of years ago?

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TIA to Redefine Telecommunications Administration
by Staff |
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In 1993, TIA approved and published TIA/EIA-606 Administration Standard for the Telecommunications Infrastructure of Commercial Buildings. This standard has received limited market acceptance, possibly for two reasons. First, TIA/EIA-606 provides few concrete requirements.

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Product Focus: Distribution/Routing
by Staff |
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Ethernet IP Gateway

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Allowing Modular Furniture to be Modular!
by Staff |
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With the growing adoption and use of modular furniture by the commercial building industry, any discussion concerning structured cabling without consideration of the TIA/EIA-568-B.1 recommendations concerning “Open Office Cabling” is insufficient.

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