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. 

Certified Multi-Media Solutions, Farmingdale, N.Y., is a low-voltage contractor that has been in business since 2005.

Throughout my career, I have found contractors that attempt to perform fire alarm system installations by the seat of their pants. A contractor typically has grown up in the industry with some valuable training resources.

Fluke Networks' DSX-8000 cable analyzer and accessories

Structured wiring technicians carry their own tools for everyday work, but the companies that employ them often find it practical and economical to rent high-end network-testing equipment. Specialty rental companies carry broad selections of network and electrical testers.


How often does something go wrong on a project? I bet your answer is, “Too often.” Of course, when this happens, it erodes profitability.


More on Systems

 
E-J Electric Builds Two 500 MW Power Plants

Across the East River from Manhattan, construction workers are erecting two separate power plants intended to help solve the city's power problems. One contractor has been constructing the electrical systems for the NYPA 500 MW and the Astoria Energy 500 MW power plants in Astoria, Queens.


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Simplifying the Process

Virtual private LAN service (VPLS) connects local area networks (LANs) over the Internet and makes each private LAN act like a single Ethernet LAN. This is a seamless way to keep remote and branch locations connected-something practical in today's global marketplace.


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Designing for Building Integration

Interest in integrated building systems (IBS) is stronger than ever. These systems not only improve the overall performance of a facility, but the performance of the workers as well.


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Measuring Up

Imagine what would happen if you were working on a construction project and had to make a measurement. You used your tape measure and got a length based on the markings on the tape. A member of your crew showed up with a laser ranger and made his measurement.


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More than 'Just in Time'

'Just in time' used to be the battle cry in security product manufacturing and distribution. Now, it is more than just in time-it is all about arming the contractor with the information they need to boost sales and present the end-user with a product portfolio adeptly suited to the application.


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Catch a Wave

Many fiber optic specifications and tests refer to wavelength because most parameters have some wavelength dependency. Attenuation, for example, is caused by absorption and scattering. Absorption occurs at certain wavelengths and scattering gets less significant at longer wavelengths.


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In the Zone

It is not a new cabling and wiring installation technique, but it has certainly come of age. Zone cabling is a little like the old multiplexed circuits of the early high-end burglar alarm systems (think New York jewelry stores) with a much more modern twist.


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