Whenever energized electrical equipment is being examined, serviced, maintained or adjusted in any way, there is always the potential for an electrical explosion to occur, resulting in injury to the electrical worker and damage to the equipment. READ MORE
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
April 2002
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Cable trays can be a very convenient method of transporting large numbers of signaling, communications and control cables, as well as other cables, from one location in a facility to another. If cable trays are to be used, however, some specific requirements must be followed. READ MORE
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In the past few years, hundreds of thousands of solar photovoltaic (PV) systems have been installed for residential (dwelling) units, commercial buildings, industrial facilities and utility companies. Many have been subsidized by grants from utility companies as well as by local, county, state and federal tax rebates. READ MORE