The Electrician's Trade Demystified
David Herresis the owner and operator of a residential and commercial construction company. He obtained a Journeyman Electrician&#8217;s License in 1975, and has certificates in welding and wetland delineation, along with experience with elevators. Beginning in 2001, Mr. Herres has focused primarily on electrical work, upgrading his license to Master status. He is the author of two McGraw-Hill Professional titles,The 2011 National Electrical Code: Chapter-by-ChapterandTroubleshooting and Repairing Commercial Electrical Equipment, to be published in July, 2013.