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

December 2006
The price of copper has been increasing at an incredible rate over the past few years; the reasons for the increase is not an issue that will be discussed here, but the resulting price escalation affects the electrical industry since many of the electrical conductors used in construction are copper. READ MORE
November 2006
The International Electrotechnical Commission (IEC) documents use a totally different nomenclature to describe the electrical potential between phase conductors and earth than the National Electrical Code (NEC). The NEC refers to the electrical potential between phase conductors and normally non-current-carrying metal parts of equipment as grounding. READ MORE
October 2006
Interpreting swimming pool code requirements The May 2005 Code Applications column, “Going For a Swim,” contained information on a major change in Article 680 for the 2005 National Electrical Code (NEC) concerning the construction requirements of fiberglass pools, vinyl-lined pools and concrete pools that contain epoxy-coated rebar. READ MORE
September 2006
Last chance to review and comment The time for commenting on proposals is shortly coming to a close. On Oct. 20, 2006, 5 p.m., EST, the National Fire Protection Association will stop accepting comments on proposals that have been processed for the 2008 National Electrical Code (NEC). READ MORE
August 2006
Every new National Electric Code (NEC) cycle brings issues of national importance to the forefront. Some of these issues have been simmering for a long time at the local municipal level, and others have risen to the surface quickly in response to disasters, such as hurricanes, acts of terrorism and fires. READ MORE
July 2006
Changes involving ground-fault circuit interrupter (GFCI) protection for personnel have been present in every National Electrical Code (NEC) cycle since GFCIs were inserted into the 1962 NEC. The results of the January 2006 NEC Panel actions on proposals for the 2008 NEC state there will be more major changes involving installation requirements for these safety devices. READ MORE
June 2006
With the 2005 hurricane season a distinct memory for all involved in those tremendously destructive storms, recovery and reconstruction is a painfully slow process. Rebuilding destroyed homes and businesses within the flood plains and coastal areas requires planning, coupled with foresight and expertise for these buildings to withstand future storms and power loss. READ MORE
May 2006
Hidden within the rewrite of Articles 511 and 514—which cover repair garages for motor vehicles and motor fuel dispensing stations, respectively, in the 2005 National Electrical Code (NEC)—is a major change in the concept of hazardous (classified) locations. READ MORE
April 2006
Providing branch-circuit overcurrent protection and subdividing electrical resistance-heating elements in appliances and fixed electric space heating equipment has been a long- standing requirement in the National Electrical Code (NEC). Recently, a discrepancy was discovered between the subdivision requirements in the NEC and those found in NFPA 86, Standard for Industrial Ovens and Furnaces. READ MORE

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