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UL Standards Update: January 1-15, 2011

Underwriters Laboratories has announced the availability of the following standards, revisions and bulletins. For additional information regarding the standards listed below, please visit their website at http://www.ul.com.

UL 98: Enclosed and Dead-Front Switches
Revision dated January 14, 2011

UL 399: Standard for Drinking-Water Coolers
Revision dated January 14, 2011

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A Dash of Maxwell’s: A Maxwell’s Equations Primer – Part One

Solving Maxwell’s Equations for real-life situations, like predicting the RF emissions from a cell tower, requires more mathematical horsepower than any individual mind can muster. These equations don’t give the scientist or engineer just insight, they are literally the answer to everything RF.

UL 464: Standard for Audible Signal Appliances
Revision dated January 12, 2011

UL 778: Standard for Motor-Operated Water Pumps
Revision dated January 14, 2011

UL 864: Standard for Control Units and Accessories for Fire Alarm Systems
Revision dated January 12, 2011

UL 1090: Standard for Electric Snow Movers
Revision dated January 14, 2011

UL 1286: Standard for Office Furnishings
Revision dated January 6, 2011

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UL 2267: Standard for Fuel Cell Power Systems for Installation in Industrial Electric Trucks
Revision dated January 13, 2011

 

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