Print Page   |   Contact Us   |   Sign In   |   Join
IAEI Magazine | Author: Mark C. Ode
Share |

Mark C. Ode

Mark C. Ode, staff engineering associate at the Underwriters Laboratories Inc. in the Research Triangle Park, North Carolina Regulatory Services Department, was a senior electrical specialist for the National Fire Protection Association. He is a former staff liaison and secretary to the NFPA Electrical Equipment in Chemical Atmospheres Committee. He was the executive secretary for the NFPA Electrical Section and editor of the Electrical Section news bulletin, Current Flashes. He has taught the National Electrical Code throughout the United States. He is certified as an electrical instructor for the States of Wyoming, New Jersey, North Carolina, Michigan, and Massachusetts, as well as others. He is an electrical code columnist for Electrical Contractor magazine. He was a principle member of CMP-20 for the 1990 NEC and an alternate member of CMP-3 for the 2002 NEC. He is a principle member of CMP-4, an alternate member of CMP-3, and an alternate on the NEC Technical Correlating Committee for the 2005 NEC. He has been a member of IAEI since September 15, 1975.


Using the Suspended Ceiling Grid for Low-Voltage Power Distribution Systems

This article analyzes the new technology of low-voltage lighting and power distribution at 30 volts or less using the suspended ceiling grid as a lighting and power distribution system. Article 410 covering luminaires and Article 411 covering low-voltage lighting systems at 30 volts or less are two primary lighting installation articles in the National Electrical Code (NEC) pertaining to this new technology. A thorough understanding of the relationship of these two NEC articles with respect to ceiling grid low-voltage lighting and power distribution is one of the prime topics of this article. New Article 393, Low-Voltage Suspended Ceiling Power Distribution Systems, has been accepted for the 2014 NEC and expands the prior application of Articles 410 and 411, as applied to low-voltage lighting power distribution, to cover the new wiring method of low-voltage suspended ceiling power distribution.

Low-Voltage Lighting Systems Operating at 30 Volts or Less

Article 411 was established during the 1996 National Electrical Code (NEC) cycle to provide a separate article for low-voltage lighting systems designed and listed as a complete system. The primary reason for Article 411 was the development of a new system of low-voltage incandescent spot lighting.