May Issue 2009

 

Featured Articles

Transformer Accessibility, Derating Conductors and More

By George W. FlachUnder (Codes & Standards)

Article 210 Branch Circuits; Article 240 Overcurrent Protection; Article 250 Grounding and Bonding;

Low Voltage But Not Low Risk

By Russ MunyanUnder (Miscellaneous)

The good news is that the electrical current through low-voltage cabling—such as telecommunications

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Powering Up: Temporary Generators
(Miscellaneous)
By
Mark C. Ode
May 2009
While preparing a presentation, I noticed a photo taken at a facility where temporary power was needed periodically. The facility rented a generator when necessary. READ MORE
Nearly There: Screw-In LEDs
(Lighting)
By
Craig DiLouie
May 2009
The stakes are high. According to U.S. Department of Energy (DOE) estimates, nearly 1 billion 60W A19 lamps will be installed in the United States by 2010. READ MORE
Money and Value
(Your Business)
By
Denise Norberg-Johnson
May 2009
Are we headed for another great depression or simply working through an expected blip on the recession radar screen? READ MORE
Breath of Fresh Air
(Codes & Standards)
By
James G. Stallcup
May 2009
A veteren electrician asked what the National Electrical Code (NEC) requirements are for installing cord-and-plug-connected room air conditioners. READ MORE
The Future of Power Lies in Efficiency
(Miscellaneous)
By
Rick Laezman
May 2009
Forget solar, wind and biomass. READ MORE

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Products Featured In This Issue

Safety Equipment and Apparel
1 Rain Gear > Salisbury by Honeywell’s arc- and flame-resistant PVC Nomex rain suit has an ATPV of up to 9 cal/cm². READ MORE
Cool Tools: Tools for Fiber
As demand for broadband increases, the superiority of fiber optic data communications networks is recognized by enterprise organizations, smaller businesses and even individu READ MORE
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May 2009
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