Electrical Contractor Magazine

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. 

Eaton’s Power Xpert multipoint meter

Although submeters have long enabled building owners, multiresidential property managers and facility managers to better control energy consumption and costs, use of the technology has remained steady in about 10 to 15 percent of the commercial and multifamily residential building space.

Last month, I covered the challenges to traditional structured cabling from multimode optical fiber and wireless. Multimode fiber became the favorite cabling for the backbone but never made it to the desktop because every connected device already had a free Cat 5 port.

In this third part of my series on the most common power quality phenomena, I group several IEEE 1159 categories together under the general description of “distortion.” Though one might argue that all power quality phenomena result in distortions of the voltage sine wave, these are the more steady-s

Positioning


About three years ago, security service providers started offering smart security solutions complete with professionally monitored home security services that were enhanced with home automation and energy management capabilities.

Electrical Contractor Magazine

More on Systems

 
CCTP Technology Converges Security with IT
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A new closed circuit over twisted pair (CCTP) surveillance system developed by data communications distributor Anixter Inc., in conjunction with manufacturer partners Philips CSI, Belden Wire & Cable, and Middle Atlantic, effectively melds digital closed circuit (CCTV) technology with a local ar

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Virtual Viewing with CCTV
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Networking and digitization continues to revolutionize closed-circuit television (CCTV) surveillance. Systems can be scaled to the application and integrated with other voice-data products to satisfy a host of needs that range from security and video management to identification and accountability.

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Contractors Needed for Biometrics
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Over the past few years, the biometrics industry has experienced significant activity, resulting in myriad new applications as the demand for these products has increased. This trend is still on the rise, going full speed ahead.

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Motor-Operated Appliances
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Article 422 of the 2002 National Electrical Code covers electrical appliances used in dwellings, commercial facilities and some industrial installations. Many appliances utilize only electrical power.

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Zone Cabling
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It’s obvious that fiber optics is not copper wiring. Advantages of fiber include the capability of going longer distances at higher speeds, plus immunity to electromagnetic radiation. These advantages overcame its cost disadvantage and made it the cabling choice for telecommunication and CATV.

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Security System Cabling
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Because we all want to feel safe and secure, the prevalence and necessity of security systems has always been a driving factor in business and industry. The tragic events of Sept.

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Monitoring Systems Remotely
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Advances in technology have made the remote monitoring of commercial building systems both possible and economical.

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