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

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
August 2007
Article 517 in the National Electrical Code (NEC) applies to electrical construction and installation criteria in healthcare facilities. Part II of Article 517 provides the requirements for wiring and protection in healthcare facilities and is applicable to all patient care areas. However, there is at least one section within Part II that should not be used in a patient care area. READ MORE
July 2007
As my March 2007 column “At the Service Entrance” detailed, inspectors, manufacturers, contractors and electricians have long debated the installation orientation of panelboards and circuit breakers. Should a panelboard be installed in only a vertical position, or can it be installed horizontally? READ MORE
June 2007
Inspectors, manufacturers, contractors and electricians have debated the installation orientation of panelboards and circuit breakers for many years. Should a panelboard be installed only in a vertical position, or can it be installed horizontally? Can the panelboard be installed on its back, or would that be a violation of the National Electrical Code (NEC)? READ MORE
May 2007
Equipotential bonding adjustments for pools in the 2008 NEC   READ MORE
April 2007
How far we have come: READ MORE
March 2007
There are some issues involving installations in the National Electrical Code (NEC) that regularly generate considerable misunderstanding for installers, inspectors and engineers; recently, I was giving a workshop on the changes in the 2005 NEC, and as I was covering the change in Section 230.40, Exception No. READ MORE
February 2007
From both a global environmental and an economic point of view, New Article 626 may be one of the most exciting concepts to ever be proposed for the National Electrical Code (NEC); the proposed electrified truck parking space equipment will provide telephone connections, cable and power for televisions, fax machines, microwaves, coffee pots and a host of other appliances. READ MORE

Pages