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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A Bit Ticked
(Your Business)
By
Richard P. Bingham
May 2009
A few months ago, we answered a customer’s question about what equipment might be affected by a particular type of power quality phenomenon. READ MORE
Branch Circuit, Feeder and Service Calculations, Part XXXIX
(Codes & Standards)
By
Charles R. Miller
May 2009
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
Cities Focus on Increasing Efficiency of Street Lamps
(Miscellaneous)
By
May 2009
Some cities are modifying streetlights to curb electricity use, reports the Wall Street Journal. READ MORE
DOE and CREEA Launch Alliance to Reduce Energy Consumption of Buildings
(Miscellaneous)
By
May 2009
Top executives from 19 commercial real estate companies met with U.S. 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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