Published:
May 2010

Featured In This Issue

 

Featured Articles

Safe Workers, Shared Responsibilities

By Michael JohnstonUnder (Safety)

Electrical contractors and electricians have shared responsibilities regarding safety in the work e

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Cable Tray Under Raised Floors, Outdoor Space Wiring and More
(Codes & Standards)
By
Charlie Trout
May 2010
If you have a National Electrical Code (NEC)-related problem, are experiencing difficulty in understanding an NEC requirement, or are wondering why or if such a requirement e READ MORE
Imagining and Planning
(Miscellaneous)
By
Edward Brown
May 2010
Security systems are very different than fire alarm systems. READ MORE
May Quiz With Correct Answers and Explanations
(Systems)
By
Jim Hayes
May 2010
There must be a gazillion ways to install premises cabling, depending on the design of the building and location of users. READ MORE
Branch-Circuit, Feeder and Service Calculations, Part LI
(Codes & Standards)
By
Charles R. Miller
May 2010
Article 220 of the National Electrical Code (NEC) provides requirements for calculating branch-circuit, feeder and service loads. Article 220 is divided into five parts. READ MORE
Knowing What’s Best
(Lighting)
By
Craig DiLouie
May 2010
Tight credit and weak demand for new facilities pushed private nonresidential spending into a deep slide in 2009, while public construction got a boost from federal stimulus READ MORE

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Products Featured In This Issue

Safety Equipment and Apparel
1 Face Shield > Salisbury by Honeywell’s AS1200HAT weight-balancing arc flash protection face shield has an ATPV rating of 12 cal/cm2 and includes ventilation ribs that al READ MORE
Cool Tools: Certification Testers
One of the most important steps in completing commercial voice/data/video (VDV) system installation is certification that cabling is correctly installed and that the network READ MORE
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