Mark OdeMark C. Ode is the founder of Southwest Electrical Training and Consulting. Previously, he was lead engineering instructor at Underwriters Laboratories, Inc., in the Research Triangle Park, North Carolina, and a member of UL�s Regulatory Servies Department. He spent nine years as National Fire Protection Association (NFPA) staff liaison for the Electrical Equipment in Chemical Atmospheres Committee and was the staff liaison for Code-Making-Panel (CMP) 14, the National Electrical Code (NEC) panel responsible for hazardous locations. Mark has written monthly NEC articles for Electrical Contractor Magazine since January 2000, and he was co-author of the Illustrated Code Changes 2008 Edition, 2008 Journeyman Electrician�s Study Guide and 2008 Master Electrician�s Study Guide, as well as Cengage-Delmar�s Electrical Raceways and Other Wiring Methods, Sixth Edition. He also served as a senior electrical specialist for the NFPA. Read More Read Less