Mark C. Ode

Fire/Life Safety Columnist and Code Contributor

Mark C. Ode is a staff engineering associate at Underwriters Laboratories Inc., based in Peoria, Ariz. He can be reached at 919.949.2576 and mark.c.ode@us.ul.com.

Articles by Mark C. Ode

June 2008
Tamper-resistant receptacles will significantly reduce the number of injuries that result when someone inserts a foreign object into receptacles within a residential occupancy. READ MORE
May 2008
Arc-Fault Circuit Interrupter (AFCI) protection has been a requirement since the 1999 National Electrical Code (NEC), starting as protection for receptacles in bedrooms and then progressing to protection of all outlets in bedrooms with changes in later Code cycles. READ MORE
April 2008
Everyone in the electrical industry, including the electrical apprentice, the journeyman, the master electrician, electrical contractor, electrical engineer, designer, the electrical inspector, et al., seem to use the phrase “neutral conductor.” However, until the 2008 National Electrical Code (NEC), we did not actually have a definition of a neutral. READ MORE
March 2008
Occasionally, a change occurs in the National Electrical Code (NEC), and the ramifications are not realized until after the Code is issued. One such change can be found in Section 210.4(B) in the 2008 NEC. On the surface, the change does not seem to seriously affect electrical installations, and only after an in-depth analysis does the real extent of the change surface. READ MORE
February 2008
After addressing the lighting and exterior area of the premises last month, this month’s article concentrates primarily on internal security of the building, using Article 708 covering critical operations power systems (COPS) in the 2008 National Electrical Code (NEC). READ MORE
January 2008
With all that has been happening in the past few years, homeland security has become one of the most important aspects of our lives. READ MORE
December 2007
There has been a substantial controversy raging throughout the electrical industry for a considerable time now, and hopefully, changes made for the 2008 National Electrical Code (NEC) will finally resolve this debate. READ MORE
October 2007
Occasionally, an electrical installation practice is discovered that is dangerous to both electrical maintenance personnel and the facility where it is located. I attend various electrical inspector meetings and often answer questions about the National Electrical Code (NEC) and listing requirements for electrical products. READ MORE
September 2007
There are times when an idea seems to take on a life of its own, and bonding of swimming pool water seems to be one of those. This idea was proposed for the 2005 National Electrical Code (NEC), passed at the proposal stage and was soundly rejected at the comment stage. For the 2008 NEC, it was rejected at the proposal stage. READ MORE

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