Columns

Does UL have a quick reference guide that I can carry around in my pocket that includes UL Mark information as well as UL policies and contact information?

Why does the Listing limit these meter sockets for residential use only?

My jurisdiction recently adopted the 2008 NEC and I was wondering when UL is going to add the 2008 NEC to the Code Correlation database?

Requirements for Supply and Consumer’s Services – Inconsistencies in the CE Code

Sunlight, Conductors and Raceways on Rooftops

Size of bonding wire for 200-amp load center

Is an additional bare copper bonding wire jumper required?

Grid Interconnections – Then [2005] and Now [2008]

Installation of electrically connected carbon monoxide alarms

Measuring Good Judgment